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PT.TORINDO UTAMA SAKTI
Construction-Supply-Service for Oil & Gas
Jakarta 12720 - Indonesia
Pressure Vessel For SKG Benuang.
Item : VERTICAL SCRUBBER
Vessel No : M-100 & M-101
Client : PT. PANCA ARTHA SARI
Castomer : PT. PERTAMINA EP REGION SUMATERA
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Nozzle Schedule
Nozzle
markService Size
Materials
Nozzle Impact Norm Fine Grain Pad Impact Norm Fine Grain Flan
MH Manhole 18" Sch 40 SA-106 B Smls pipe No No No SA-516 70 No No NoWNA105
300#
N1 Inlet 4" Sch 160 SA-106 B Smls pipe No No No SA-516 70 No No NoWNA105
300#
N10 RD 2" Sch 160 SA-106 B Smls pipe No No No N/A N/A N/A N/A
WN
A105300#
N2 Gas Outlet 4" Sch 160 SA-106 B Smls pipe No No No SA-516 70 No No No
WN
A105300#
N3 Drain 2" Sch 160 SA-106 B Smls pipe No No No N/A N/A N/A N/AWNA105
300#
N4 Liquid Outlet 2" Sch 160 SA-106 B Smls pipe No No No N/A N/A N/A N/AWNA105300#
N5 PSV 1.500" XX Heavy SA-106 B Smls pipe No No No N/A N/A N/A N/A
WN
A105
300#
N6A Briddle Connection 2" Sch 160 SA-106 B Smls pipe No No No N/A N/A N/A N/AWNA105
300#
N6B Briddle Connection 2" Sch 160 SA-106 B Smls pipe No No No N/A N/A N/A N/AWNA105300#
N7 PI 2" Sch 160 SA-106 B Smls pipe No No No N/A N/A N/A N/A
WN
A105300#
N8 TI c/w Thermo well 2" Sch 160 SA-106 B Smls pipe No No No N/A N/A N/A N/AWNA105
300#
N9 Vent 2" Sch 160 SA-106 B Smls pipe No No No N/A N/A N/A N/A WNA105
300#
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Pressure Summary
Pressure Summary for Chamber bounded by Ellipsoidal Head #2 and Ellipsoidal Head #1
Identifier
P
Design
( psi)
T
Design
(°F)
MAWP
( psi)
MAP
( psi)
MDMT
(°F)
MDMT
Exemption
Total Corrosion
Allowance
(in)
Impact
Test
Ellipsoidal Head #1 500.0 120.0 555.63 738.01 -39.1 Note 1 0.125 No
Straight Flange on Ellipsoidal Head #1 500.0 120.0 541.52 724.64 -38.5 Note 2 0.125 No
Cylinder #1 500.0 120.0 540.58 724.64 -38.3 Note 3 0.125 No
Straight Flange on Ellipsoidal Head #2 500.0 120.0 540.51 724.64 -38.3 Note 5 0.125 No
Ellipsoidal Head #2 500.0 120.0 554.37 738.01 -38.8 Note 4 0.125 No
Manhole (MH) 500.0 120.0 508.34 613.14 -38.4 Nozzle Note 6; Pad note 7 0.125 No
Inlet (N1) 500.0 120.0 541.46 724.61 -38.5 Nozzle Note 8; Pad note 9 0.125 No
RD (N10) 500.0 120.0 555.59 737.95 -55.0 Note 10 0.125 No
Gas Outlet (N2) 500.0 120.0 602.41 740.00 -45.3 Nozzle Note 8; Pad note 11 0.125 No
Drain (N3) 500.0 120.0 600.89 740.00 -55.0 Note 10 0.125 No
Liquid Outlet (N4) 500.0 120.0 540.66 724.61 -55.0 Note 10 0.125 No
PSV (N5) 500.0 120.0 541.46 724.61 -55.0 Note 10 0.125 No
Briddle Connection (N6A) 500.0 120.0 541.46 724.61 -55.0 Note 10 0.125 No
Briddle Connection (N6B) 500.0 120.0 540.88 724.61 -55.0 Note 10 0.125 No
PI (N7) 500.0 120.0 541.46 724.61 -55.0 Note 10 0.125 No
TI c/w Thermo well (N8) 500.0 120.0 369.93 584.80 -55.0 Note 10 0.125 No
Vent (N9) 500.0 120.0 555.59 737.95 -55.0 Note 10 0.125 No
Chamber design MDMT is -20.00°F
Chamber rated MDMT is -38.30°F @ 369.93 psi
Chamber MAWP hot & corroded is 369.93 psi @ 120.0°F
Chamber MAP cold & new is 584.80 psi @ 70.0°F
This pressure chamber is not designed for external pressure.
Notes for MDMT Rating:
Note # Exemption Details
1.Material impact test exemption temperature from Fig UCS-66 Curve B = -7 °F
Fig UCS-66.1 MDMT reduction = 32.1 °F, (coincident ratio = 0.6792364)
UCS-66 governing thickness =
0.5 in
2.Material impact test exemption temperature from Fig UCS-66 Curve B = -7 °FFig UCS-66.1 MDMT reduction = 31.5 °F, (coincident ratio = 0.685472)
UCS-66 governing thickness =0.5 in
3.Material impact test exemption temperature from Fig UCS-66 Curve B = -7 °F
Fig UCS-66.1 MDMT reduction = 31.3 °F, (coincident ratio = 0.6871983)
UCS-66 governing thickness =
0.5 in
4.Material impact test exemption temperature from Fig UCS-66 Curve B = -7 °F
Fig UCS-66.1 MDMT reduction = 31.8 °F, (coincident ratio = 0.6815098)
UCS-66 governing thickness =
0.5 in
5.Material impact test exemption temperature from Fig UCS-66 Curve B = -7 °FFig UCS-66.1 MDMT reduction = 31.3 °F, (coincident ratio = 0.687331)
UCS-66 governing thickness =0.5 in
6.Nozzle impact test exemption temperature from Fig UCS-66 Curve B = -7.792 °FFig UCS-66.1 MDMT reduction = 56.6 °F, (coincident ratio = 0.51224)
Rated MDMT is governed by UCS-66(b)(2)
UCS-66 governing thickness =0.4918 in.
7.Pad impact test exemption temperature from Fig UCS-66 Curve B = -7 °FFig UCS-66.1 MDMT reduction = 31.4 °F, (coincident ratio = 0.68611)
UCS-66 governing thickness =0.5 in.
8. Nozzle is impact test exempt to -155 °F per UCS-66(b)(3) (coincident rat io = 0.119).
9.Pad impact test exemption temperature from Fig UCS-66 Curve B = -7 °FFig UCS-66.1 MDMT reduction = 31.5 °F, (coincident ratio = 0.68547)
UCS-66 governing thickness =0.5 in.
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10. Flange rating governs: UCS-66(b)(1)(b)
11.Pad impact test exemption temperature from Fig UCS-66 Curve B = -7 °F
Fig UCS-66.1 MDMT reduction = 38.3 °F, (coincident ratio = 0.61693)
UCS-66 governing thickness =
0.5 in.
Design notes are available on the Settings Summary page.
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Settings Summary
COMPRESS Build 6247
Units: U.S. Customary
Datum Line Location: 0.00" from bottom seam
Design
ASME Section VIII Division 1, 2004 Edition, A05 Addenda
Design or Rating: Get Thickness from Pressure
Minimum thickness: 1/16" per UG-16(b)
Design for cold shut down only: No
Design for lethal service (full radiography required): No
Design nozzles for: Design P, find nozzle MAWP and MAP
Corrosion weight loss: 100% of theoretical loss
UG-23 Stress Increase: 1.20
Skirt/legs stress increase: 1.0
Minimum nozzle projection: 6.0000"
Juncture calculations for α > 30 only: Yes
Preheat P-No 1 Materials > 1.25" and <= 1.50" thick: No
Butt welds are tapered per Figure UCS-66.3(a).
Hydro/Pneumatic Test
Shop Hydrotest Pressure: 1.3 times vessel MAWP
Test liquid specific gravity: 1.00
Maximum stress during test: 90% of yield
Code Interpretations
Apply interpretation VIII-1-83-66: Yes
Apply interpretation VIII-1-86-175: Yes
Apply interpretation VIII-1-83-115: Yes
Apply interpretation VIII-1-01-37: Yes
Disallow UG-20(f) exemptions: No
UG-22 Loadings
UG-22 (a) Internal or External Design Pressure : Yes
UG-22 (b) Weight of the vessel and normal contents under operating or test conditions: Yes
UG-22 (c) Superimposed static reactions from weight of attached equipment (external loads): No
UG-22 (d)(2) Vessel supports such as lugs, rings, skirts, saddles and legs: YesUG-22 (f) Wind reactions: No
UG-22 (f) Seismic reactions: No
Note: UG-22 (b),(c) and (f) loads only considered when supports are present.
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Thickness Summary
Component
IdentifierMaterial Diameter
(in)
Length
(in)
Nominal t
(in)
Design t
(in)
Joint
ELoad
Ellipsoidal Head #1 SA-516 70 28.00 OD 7.25 0.5000* 0.4633 1.0000 Internal
Straight Flange on Ellipsoidal Head #1 SA-516 70 28.00 OD 2.00 0.5000 0.4716 1.0000 Internal
Cylinder #1 SA-516 70 28.00 OD 96.00 0.5000 0.4722 1.0000 Internal
Straight Flange on Ellipsoidal Head #2 SA-516 70 28.00 OD 2.00 0.5000 0.4723 1.0000 Internal
Ellipsoidal Head #2 SA-516 70 28.00 OD 7.25 0.5000* 0.4642 1.0000 Internal
Support Skirt SA-36 27.95 OD 39.37 0.2362 0.1238 0.5500 Weight
Nominal t: Vessel wall nominal thickness
Design t: Required vessel thickness due to governing loading + corrosion
Joint E: Longitudinal seam joint efficiency
* Head minimum thickness after forming
Load
internal: Circumferential stress due to internal pressure governs
external: External pressure governs
Wind: Combined longitudinal stress of pressure + weight + wind governs
Seismic: Combined longitudinal stress of pressure + weight + seismic governs
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Weight Summary
Component
Weight ( lb) Contributed by Vessel Elements
Metal
New*
Metal
Corroded*Insulation &
SupportsLining
Piping+ Liquid
OperatingLiquid
TestLiquid
Ellipsoidal Head #1 145.34 110.14 0.00 0.00 0.00 0.00 136.48
Cylinder #1 1,131.78 852.84 0.00 0.00 0.00 576.65 2,034.84
Ellipsoidal Head #2 148.22 112.30 0.00 0.00 0.00 138.13 134.66
Support Skirt 229.16 115.07 0.00 0.00 0.00 0.00 0.00
Skirt Base Ring 70.00 70.00 0.00 0.00 0.00 0.00 0.00
TOTAL: 1,724.50 1,260.34 0.00 0.00 0.00 714.78 2,305.98
* Shells with attached nozzles have weight reduced by material cut out for opening.
Component
Weight ( lb) Contributed by Attachments
Body FlangesNozzles &Flanges
PackedBeds
Ladders &Platforms
Trays &Supports
Rings &Clips
VerticalLoads
New Corroded New Corroded
Ellipsoidal Head #1 0.00 0.00 65.58 60.68 0.00 0.00 0.00 24.88 0.00
Cylinder #1 0.00 0.00 1,026.08 998.83 0.00 0.00 0.00 0.00 0.00
Ellipsoidal Head #2 0.00 0.00 11.81 10.85 0.00 0.00 0.00 0.00 0.00
Support Skirt 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
TOTAL: 0.00 0.00 1,103.47 1,070.36 0.00 0.00 0.00 24.88 0.00
Vessel operating weight, Corroded: 3,070 lb
Vessel operating weight, New: 3,568 lb
Vessel empty weight, Corroded: 2,356 lb
Vessel empty weight, New: 2,853 lb
Vessel test weight, New: 5,159 lb
Vessel center of gravity location (from datum)
Vessel Lift Weight, New: 2,853 lb
Center of Gravity: 33.76"
Vessel Capacity
Vessel Capacity** (New): 270 US gal
Vessel Capacity** (Corroded): 276 US gal
**The vessel capacity does not include volume of nozzle, piping or other attachments.
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Hydrostatic Test
Shop test pressure determination for Chamber bounded by Ellipsoidal Head #2 and Ellipsoidal Head #1 based onMAWP per UG-99(b)
Shop hydrostatic test gauge pressure is 480.914 psi at 70.00 °F (the chamber MAWP = 369.934 psi)
The shop test is performed with the vessel in the horizontal position.
IdentifierLocal testpressure
psi
Test liquidstatic head
psi
UG-99stressratio
UG-99pressure
factor
Stressduring test
psi
Allowabletest stress
psi
Stressexcessive?
Ellipsoidal Head #1 (1) 482.124 1.209 1.0000 1.30 11,716 34,200 No
Straight Flange on Ellipsoidal Head #1 482.124 1.209 1.0000 1.30 13,257 34,200 No
Cylinder #1 482.124 1.209 1.0000 1.30 13,257 34,200 No
Straight Flange on Ellipsoidal Head #2 482.124 1.209 1.0000 1.30 13,257 34,200 No
Ellipsoidal Head #2 482.124 1.209 1.0000 1.30 11,716 34,200 No
Briddle Connection (N6A) 481.667 0.752 1.0000 1.30 14,900 47,250 No
Briddle Connection (N6B) 481.667 0.752 1.0000 1.30 14,900 47,250 No
Drain (N3) 481.667 0.752 1.0000 1.30 13,205 47,250 No
Gas Outlet (N2) 481.698 0.784 1.0000 1.30 7,226 47,250 No
Inlet (N1) 481.131 0.217 1.0000 1.30 7,588 47,250 No
Liquid Outlet (N4) 481.131 0.217 1.0000 1.30 12,991 47,250 No
Manhole (MH) 482.584 1.670 1.0000 1.30 17,072 47,250 No
PI (N7) 482.168 1.254 1.0000 1.30 14,733 47,250 No
PSV (N5) 481.293 0.379 1.0000 1.30 12,995 47,250 No
RD (N10) 481.667 0.752 1.0000 1.30 14,008 47,250 No
TI c/w Thermo well (N8) 482.168 1.254 1.0000 1.30 14,839 47,250 No
Vent (N9) 481.667 0.752 1.0000 1.30 14,008 47,250 No
Notes:(1) Ellipsoidal Head #1 limits the UG-99 stress ratio.(2) PL stresses at nozzle openings have been estimated using the method described in PVP-Vol. 399, pages 77-82.
(3) VIII-2, AD-151.1(b) used as the basis for nozzle allowable test stress.(4) The zero degree angular position is assumed to be up, and the test liquid height is assumed to the top-most flange.
The field test condition has not been investigated for the Chamber bounded by Ellipsoidal Head #2 and Ellipsoidal Head #
The test temperature of 70.00 °F is warmer than the minimum recommended temperature of -8.30 °F so the brittle fracturprovision of UG-99(h) has been met.
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Cylinder
ASME Section VIII Division 1, 2004 Edition, A05 Addenda
Component: Cylinder
Material specification: SA-516 70 (ASME II-D p. 14, ln. 20)Material impact test exemption temperature from Fig UCS-66 Curve B = -7 °F
Fig UCS-66.1 MDMT reduction = 31.3 °F, (coincident ratio = 0.6871983)UCS-66 governing thickness = 0.5 in
Internal design pressure: P = 500 psi @ 120°F
Static liquid head:
Ps =0.9385 psi (SG=1.0000, Hs=26.0000" Operating head)Pth =1.2093 psi (SG=1.0000, Hs=33.5000", Horizontal test head)
Corrosion allowance: Inner C = 0.1250" Outer C = 0.0000"
Design MDMT = -20.00°F No impact test performedRated MDMT = -38.30°F Material is not normalized
Material is not produced to Fine Grain PracticePWHT is not performed
Radiography: Longitudinal joint - Full UW-11(a) Type 1Top circumferential joint - Full UW-11(a) Type 1
Bottom circumferential joint - Full UW-11(a) Type 1
Estimated weight: New = 1173.5734 lb corr = 884.1808 lbCapacity: New = 237.9450 gal corr = 242.3718 gal
OD = 28.0000"Length Lc = 96.0000"t = 0.5000"
Design thickness, (at 120.00°F) Appendix 1-1
t = P*Ro /(S*E + 0.40*P) + Corrosion
= 500.94*14.0000/(20000*1.00 + 0.40*500.94) + 0.1250= 0.4722"
Maximum allowable working pressure, (at 120.00°F) Appendix 1-1
P = S*E*t/(Ro - 0.40*t) - Ps
= 20000*1.00*0.3750 / (14.0000 - 0.40*0.3750) - 0.9385
= 540.5777 psi
Maximum allowable pressure, (at 70.00°F) Appendix 1-1
P = S*E*t/(Ro - 0.40*t)= 20000*1.00*0.5000 / (14.0000 - 0.40*0.5000)= 724.6377 psi
% Extreme fiber elongation - UCS-79(d)
= (50 * t / Rf) * (1 - Rf / Ro)= (50 * 0.5000 / 13.7500) * (1 - 13.7500 / ∞)
= 1.8182 %
Design thickness = 0.4722"
The governing condition is due to internal pressure.
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The cylinder thickness of 0.5000" is adequate.
Thickness Required Due to Pressure + External Loads
ConditionPressure P (
psi)
Allowable StressBefore UG-23 Stress
Increase ( psi)Temperature
(°F)Corrosion C
(in)Load
Req'd Thk Due toTension (in)
Req'd Thkto
Compress(in)
St Sc
Operating, Hot & Corroded 500.00 20000.00 16426.46 120.00 0.1250 Weight 0.1702 0.1664
Operating, Hot & New 500.00 20000.00 16995.68 120.00 0.0000 Weight 0.1685 0.1645
Hot Shut Down, Corroded 0.00 20000.00 16426.46 120.00 0.1250 Weight 0.0007 0.0038
Hot Shut Down, New 0.00 20000.00 16995.68 120.00 0.0000 Weight 0.0006 0.0040
Empty, Corroded 0.00 20000.00 16426.46 0.00 0.1250 Weight 0.0007 0.0038
Empty, New 0.00 20000.00 16995.68 0.00 0.0000 Weight 0.0006 0.0040
Hot Shut Down, Corroded, Weight &Eccentric Moments Only
0.00 20000.00 16426.46 120.00 0.1250 Weight 0.0007 0.0038
Allowable Compressive Stress, Hot and Corroded- ScHC, (table CS-2)
A = 0.125 / (Ro / t)
= 0.125 / (14.0000 / 0.3750)= 0.003348
B = 16426.4629 psi
S = 20000.0000 / 1.0000
= 20000.0000 psi
ScHC = 16426.4629 psi
Allowable Compressive Stress, Hot and New- ScHN, (table CS-2)
A = 0.125 / (Ro / t)
= 0.125 / (14.0000 / 0.5000)
= 0.004464
B = 16995.6758 psi
S = 20000.0000 / 1.0000
= 20000.0000 psi
ScHN = 16995.6758 psi
Allowable Compressive Stress, Cold and New- ScCN, (table CS-2)
A = 0.125 / (Ro / t)
= 0.125 / (14.0000 / 0.5000)
= 0.004464
B = 16995.6758 psi
S = 20000.0000 / 1.0000
= 20000.0000 psi
ScCN = 16995.6758 psi
Allowable Compressive Stress, Cold and Corroded- ScCC, (table CS-2)
A = 0.125 / (Ro / t)
= 0.125 / (14.0000 / 0.3750)
= 0.003348
B = 16426.4629 psi
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S = 20000.0000 / 1.0000
= 20000.0000 psi
ScCC = 16426.4629 psi
Allowable Compressive Stress, Vacuum and Corroded- ScVC, (table CS-2)
A = 0.125 / (Ro / t)
= 0.125 / (14.0000 / 0.3750)
= 0.003348
B = 16426.4629 psi
S = 20000.0000 / 1.0000
= 20000.0000 psi
ScVC = 16426.4629 psi
Operating, Hot & Corroded, Bottom Seam
tp = P*R/(2*St*Ks*Ec + 0.40*|P|) (Pressure)
= 500.00*13.6250/(2*20000*1.0000*1.00 + 0.40*|500.0000|)
= 0.1695"
tm = M/(π*Rm2*St*Ks*Ec) (bending)
= 22915/(π*13.81252*20000*1.0000*1.00)
= 0.0019"
tw = W/(2*π*Rm*St*Ks*Ec) (Weight)
= 2081/(2*π*13.8125*20000*1.0000*1.00)
= 0.0012"
tt = tp + tm - tw (total required, tensile)
= 0.169465 + 0.001912 - (0.001199)
= 0.1702"
tc = |tmc + twc - tpc| (total, net tensile)
= |0.001912 + (0.001199) - (0.169465)|
= 0.1664"
Maximum allowable working pressure, Longitudinal Stress
P = 2*St*Ks*Ec*(t-tm+tw) / (R - 0.40*(t-tm+tw))
= 2*20000*1.0000*1.00*(0.3750-0.001912+(0.001199)) / (13.6250 - 0.40*(0.3750-0.001912+(0.001199)))
= 1111.03 psi
Operating, Hot & New, Bottom Seam
tp = P*R/(2*St*Ks*Ec + 0.40*|P|) (Pressure)
= 500.00*13.5000/(2*20000*1.0000*1.00 + 0.40*|500.0000|)
= 0.1679"
tm = M/(π*Rm2*St*Ks*Ec) (bending)
= 23357/(π*13.75002*20000*1.0000*1.00)
= 0.0020"
tw = W/(2*π*Rm*St*Ks*Ec) (Weight)
= 2439/(2*π*13.7500*20000*1.0000*1.00)
= 0.0014"
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tt = tp + tm - tw (total required, tensile)
= 0.167910 + 0.001966 - (0.001412)
= 0.1685"
tc = |tmc + twc - tpc| (total, net tensile)
= |0.001966 + (0.001412) - (0.167910)|
= 0.1645"
Maximum allowable working pressure, Longitudinal Stress
P = 2*St*Ks*Ec*(t-tm+tw) / (R - 0.40*(t-tm+tw))
= 2*20000*1.0000*1.00*(0.5000-0.001966+(0.001412)) / (13.5000 - 0.40*(0.5000-0.001966+(0.001412)))
= 1502.07 psi
Hot Shut Down, Corroded, Bottom Seam
tp = 0.0000" (Pressure)
tm = M/(π*Rm2*St*Ks*Ec) (bending)
= 22915/(π*13.81252*20000*1.0000*1.00)
= 0.0019"
tw = W/(2*π*Rm*St*Ks*Ec) (Weight)
= 2081/(2*π*13.8125*20000*1.0000*1.00)
= 0.0012"
tt = tp + tm - tw (total required, tensile)
= 0.000000 + 0.001912 - (0.001199)
= 0.0007"
tmc = M/(π*Rm2*Sc*Ks) (bending)
= 22915/(π*13.81252*16426*1.0000)
= 0.0023"
twc = W/(2*π*Rm*Sc*Ks) (Weight)
= 2081/(2*π*13.8125*16426*1.0000)
= 0.0015"
tc = tmc + twc - tpc (total required, compressive)
= 0.002327 + (0.001460) - (0.000000)
= 0.0038"
Hot Shut Down, New, Bottom Seam
tp = 0.0000" (Pressure)
tm = M/(π
*Rm
2
*St*Ks*Ec) (bending)= 23357/(π*13.75002*20000*1.0000*1.00)
= 0.0020"
tw = W/(2*π*Rm*St*Ks*Ec) (Weight)
= 2439/(2*π*13.7500*20000*1.0000*1.00)
= 0.0014"
tt = tp + tm - tw (total required, tensile)
= 0.000000 + 0.001966 - (0.001412)
= 0.0006"
tmc = M/(π*Rm2*Sc*Ks) (bending)
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= 23357/(π*13.75002*16996*1.0000)
= 0.0023"
twc = W/(2*π*Rm*Sc*Ks) (Weight)
= 2439/(2*π*13.7500*16996*1.0000)
= 0.0017"
tc = tmc + twc - tpc (total required, compressive)
= 0.002314 + (0.001661) - (0.000000)
= 0.0040"
Empty, Corroded, Bottom Seam
tp = 0.0000" (Pressure)
tm = M/(π*Rm2*St*Ks*Ec) (bending)
= 22915/(π*13.81252*20000*1.0000*1.00)
= 0.0019"
tw = W/(2*π*Rm*St*Ks*Ec) (Weight)
= 2081/(2*π*13.8125*20000*1.0000*1.00)
= 0.0012"
tt = tp + tm - tw (total required, tensile)
= 0.000000 + 0.001912 - (0.001199)
= 0.0007"
tmc = M/(π*Rm2*Sc*Ks) (bending)
= 22915/(π*13.81252*16426*1.0000)
= 0.0023"
twc = W/(2*π*Rm*Sc*Ks) (Weight)
= 2081/(2*π*13.8125*16426*1.0000)
= 0.0015"
tc = tmc + twc - tpc (total required, compressive)= 0.002327 + (0.001460) - (0.000000)
= 0.0038"
Empty, New, Bottom Seam
tp = 0.0000" (Pressure)
tm = M/(π*Rm2*St*Ks*Ec) (bending)
= 23357/(π*13.75002*20000*1.0000*1.00)
= 0.0020"
tw
= W/(2*π*Rm
*St*K
s*E
c) (Weight)
= 2439/(2*π*13.7500*20000*1.0000*1.00)
= 0.0014"
tt = tp + tm - tw (total required, tensile)
= 0.000000 + 0.001966 - (0.001412)
= 0.0006"
tmc = M/(π*Rm2*Sc*Ks) (bending)
= 23357/(π*13.75002*16996*1.0000)
= 0.0023"
twc = W/(2*π*Rm*Sc*Ks) (Weight)
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= 2439/(2*π*13.7500*16996*1.0000)
= 0.0017"
tc = tmc + twc - tpc (total required, compressive)
= 0.002314 + (0.001661) - (0.000000)
= 0.0040"
Hot Shut Down, Corroded, Weight & Eccentric Moments Only, Bottom Seam
tp = 0.0000" (Pressure)tm = M/(π*Rm
2*St*Ks*Ec) (bending)
= 22915/(π*13.81252*20000*1.0000*1.00)
= 0.0019"
tw = W/(2*π*Rm*St*Ks*Ec) (Weight)
= 2081/(2*π*13.8125*20000*1.0000*1.00)
= 0.0012"
tt = tp + tm - tw (total required, tensile)
= 0.000000 + 0.001912 - (0.001199)
= 0.0007"
tmc = M/(π*Rm2*Sc*Ks) (bending)
= 22915/(π*13.81252*16426*1.0000)
= 0.0023"
twc = W/(2*π*Rm*Sc*Ks) (Weight)
= 2081/(2*π*13.8125*16426*1.0000)
= 0.0015"
tc = tmc + twc - tpc (total required, compressive)
= 0.002327 + (0.001460) - (0.000000)
= 0.0038"
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Ellipsoidal Head Top
ASME Section VIII, Division 1, 2004 Edition, A05 Addenda
Component: Ellipsoidal Head
Material Specification:SA-516 70 (ASME II-D p.14, ln. 20)
Material impact test exemption temperature from Fig UCS-66 Curve B = -7 °FFig UCS-66.1 MDMT reduction = 32.1 °F, (coincident ratio = 0.6792364)
UCS-66 governing thickness = 0.5 in
Internal design pressure: P = 500 psi @ 120 °F
Static liquid head:
Ps= 0 psi (SG=1, Hs=0" Operating head)Pth= 1.2093 psi (SG=1, Hs=33.5" Horizontal test head)
Corrosion allowance: Inner C = 0.125" Outer C = 0"
Design MDMT = -20°F No impact test performedRated MDMT = -39.1°F Material is not normalized
Material is not produced to fine grain practicePWHT is not performedDo not Optimize MDMT / Find MAWP
Radiography: Category A joints - Full UW-11(a) Type 1
Head to shell seam - Full UW-11(a) Type 1
Estimated weight*: new = 145.3 lb corr = 110.1 lbCapacity*: new = 16.1 US gal corr = 16.6 US gal* includes straight flange
Outer diameter = 28"
Minimum head thickness = 0.5"Head ratio D/2h = 2 (new)
Head ratio D/2h = 1.9818 (corroded)Straight flange length Lsf = 2"Nominal straight flange thickness tsf = 0.5"
Insulation thk*: 0" density: 0 lb/ft3 weight: 0 lb
Insulation support ring spacing: 0" individual weight: 0 lb total weight: 0 lbLining/ref thk*: 0" density: 0 lb/ft3 weight: 0 lb
* includes straight flange if applicable
Results Summary
The governing condition is internal pressure.Minimum thickness per UG-16 = 0.0625" + 0.125" = 0.1875"
Design thickness due to internal pressure (t) = 0.4633"Maximum allowable working pressure (MAWP) = 555.6338 psi
Maximum allowable pressure (MAP) = 738.0074 psi
K (Corroded)
K=(1/6)*[2 + (D / (2*h))2]=(1/6)*[2 + (27.25 / (2*6.875))2]=0.987934
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K (New)
K=(1/6)*[2 + (D / (2*h))2]=(1/6)*[2 + (27 / (2*6.75))2]=1
Design thickness for internal pressure, (Corroded at 120 °F) Appendix 1-4(c)
t = P*Do*K / (2*S*E + 2*P*(K - 0.1)) + Corrosion
= 500*28*0.987934 / (2*20000*1 + 2*500*(0.987934 - 0.1)) + 0.125= 0.4633"
The head internal pressure design thickness is 0.4633".
Maximum allowable working pressure, (Corroded at 120 °F) Appendix 1-4(c)
P = 2*S*E*t / (K*Do - 2*t*(K - 0.1)) - Ps
= 2*20000*1*0.375 / (0.987934*28 - 2*0.375*(0.987934 - 0.1)) - 0
= 555.6338 psi
The maximum allowable working pressure (MAWP) is 555.6338 psi.
Maximum allowable pressure, (New at 70 °F) Appendix 1-4(c)
P = 2*S*E*t / (K*Do - 2*t*(K - 0.1)) - Ps
= 2*20000*1*0.5 / (1*28 - 2*0.5*(1 - 0.1)) - 0= 738.0074 psi
The maximum allowable pressure (MAP) is 738.0074 psi.
% Extreme fiber elongation - UCS-79(d)
= (75*t / Rf)*(1 - Rf / Ro)
= (75*0.5 / 4.84)*(1 - 4.84 / ∞)
= 7.7479%
The extreme fiber elongation exceeds 5 percent. Heat treatment per UCS-56 may be required. See UCS-79(d)(4) or (5).
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Ellipsoidal Head Bottom
ASME Section VIII, Division 1, 2004 Edition, A05 Addenda
Component: Ellipsoidal Head
Material Specification:SA-516 70 (ASME II-D p.14, ln. 20)
Material impact test exemption temperature from Fig UCS-66 Curve B = -7 °FFig UCS-66.1 MDMT reduction = 31.8 °F, (coincident ratio = 0.6815098)
UCS-66 governing thickness = 0.5 in
Internal design pressure: P = 500 psi @ 120 °F
Static liquid head:
Ps= 1.2589 psi (SG=1, Hs=35.25" Operating head)Pth= 1.2093 psi (SG=1, Hs=33.5" Horizontal test head)
Corrosion allowance: Inner C = 0.125" Outer C = 0"
Design MDMT = -20°F No impact test performedRated MDMT = -38.8°F Material is not normalized
Material is not produced to fine grain practicePWHT is not performedDo not Optimize MDMT / Find MAWP
Radiography: Category A joints - Full UW-11(a) Type 1
Head to shell seam - Full UW-11(a) Type 1
Estimated weight*: new = 148.2 lb corr = 112.3 lbCapacity*: new = 16.1 US gal corr = 16.6 US gal* includes straight flange
Outer diameter = 28"
Minimum head thickness = 0.5"Head ratio D/2h = 2 (new)
Head ratio D/2h = 1.9818 (corroded)Straight flange length Lsf = 2"Nominal straight flange thickness tsf = 0.5"
Insulation thk*: 0" density: 0 lb/ft3 weight: 0 lb
Insulation support ring spacing: 0" individual weight: 0 lb total weight: 0 lbLining/ref thk*: 0" density: 0 lb/ft3 weight: 0 lb
* includes straight flange if applicable
Results Summary
The governing condition is internal pressure.Minimum thickness per UG-16 = 0.0625" + 0.125" = 0.1875"
Design thickness due to internal pressure (t) = 0.4642"Maximum allowable working pressure (MAWP) = 554.3749 psi
Maximum allowable pressure (MAP) = 738.0074 psi
K (Corroded)
K=(1/6)*[2 + (D / (2*h))2]=(1/6)*[2 + (27.25 / (2*6.875))2]=0.987934
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K (New)
K=(1/6)*[2 + (D / (2*h))2]=(1/6)*[2 + (27 / (2*6.75))2]=1
Design thickness for internal pressure, (Corroded at 120 °F) Appendix 1-4(c)
t = P*Do*K / (2*S*E + 2*P*(K - 0.1)) + Corrosion
= 501.2589*28*0.987934 / (2*20000*1 + 2*501.2589*(0.987934 - 0.1)) + 0.125= 0.4641"
The head internal pressure design thickness is 0.4642".
Maximum allowable working pressure, (Corroded at 120 °F) Appendix 1-4(c)
P = 2*S*E*t / (K*Do - 2*t*(K - 0.1)) - Ps
= 2*20000*1*0.375 / (0.987934*28 - 2*0.375*(0.987934 - 0.1)) - 1.2589
= 554.3749 psi
The maximum allowable working pressure (MAWP) is 554.3749 psi.
Maximum allowable pressure, (New at 70 °F) Appendix 1-4(c)
P = 2*S*E*t / (K*Do - 2*t*(K - 0.1)) - Ps
= 2*20000*1*0.5 / (1*28 - 2*0.5*(1 - 0.1)) - 0= 738.0074 psi
The maximum allowable pressure (MAP) is 738.0074 psi.
% Extreme fiber elongation - UCS-79(d)
= (75*t / Rf)*(1 - Rf / Ro)
= (75*0.5 / 4.84)*(1 - 4.84 / ∞)
= 7.7479%
The extreme fiber elongation exceeds 5 percent. Heat treatment per UCS-56 may be required. See UCS-79(d)(4) or (5).
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Briddle Connection (N6A)
ASME Section VIII Division 1, 2004 Edition, A05 Addenda
tw(lower) = 0.5000 in
Leg41 = 0.3440 in
Note: round inside edges per UG-76(c)
Located on: Cylinder #1
Liquid static head included: 0 psi
Nozzle material specification: SA-106 B Smls pipe (ASME II-D p. 10, ln. 5)
Nozzle longitudinal joint efficiency: 1.00
Nozzle description: 2" Sch 160
Flange description: 2 inch 300# WN A105
Bolt Material: SA-193 B7 Bolt <= 2 1/2 (ASME II-D p. 382, ln. 33)
Flange rated MDMT: -55°F
(UCS-66(b)(1)(b))
Liquid static head on flange: 0 psi
ASME B16.5 flange rating MAWP: 727 psi @ 120°F
ASME B16.5 flange rating MAP: 740 psi @ 70°F
ASME B16.5 flange hydro test: 1125 psi @ 70°F
Nozzle orientation: 90°
Local vessel minimum thickness: 0.5 in
Nozzle center line offset to datum line: 36.5354 in
End of nozzle to shell center: 20 in
Nozzle inside diameter, new: 1.687 in
Nozzle nominal wall thickness: 0.344 in
Nozzle corrosion allowance: 0.125 in
Projection available outside vessel, Lpr: 6 in
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Reinforcement Calculations for Internal Pressure
The vessel wall thickness governs the MAWP of this nozzle.
UG-37 Area Calculation Summary(in2)
For P = 541.46 psi @ 120 °F
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5A
weldstreq tmin
This nozzle is exempt from areacalculations per UG-36(c)(3)(a)
0.2598 0.3010
Weld Failure Path Analysis Summary
The nozzle is exempt from weld strength
calculations per UW-15(b)(2)
UW-16 Weld Sizing Summary
Weld descriptionRequired weldthroat size (in)
Actual weldthroat size (in)
Status
Nozzle to shell fillet (Leg41) 0.1533 0.2408 weld size is adequate
Calculations for internal pressure 541.46 psi @ 120 °F
Fig UCS-66.2 general note (1) applies.
Nozzle is impact test exempt to -155 °F per UCS-66(b)(3) (coincident ratio = 0.12061).
Nozzle UCS-66 governing thk: 0.301 in
Nozzle rated MDMT: -155 °F
Limits of reinforcement per UG-40
Parallel to the vessel wall: d = 1.937 in
Normal to the vessel wall outside: 2.5*(tn - Cn) + te = 0.5475 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn /(Sn*E - 0.6*P)
= 541.4581*0.9685/(17100*1 - 0.6*541.4581)
= 0.0313 in
Required thickness tr from UG-37(a)
tr = P*Ro /(S*E + 0.4*P)
= 541.4581*14/(20000*1 + 0.4*541.4581)
= 0.375 in
This opening does not require reinforcement per UG-36(c)(3)(a)
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UW-16(c) Weld Check
Fillet weld: tmin = lesser of 0.75 or tn or t = 0.219 intc(min) = lesser of 0.25 or 0.7*tmin = 0.1533 in
tc(actual) = 0.7*Leg = 0.7*0.344 = 0.2408 in
The fillet weld size is satisfactory.
Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e).
UG-45 Nozzle Neck Thickness Check
Wall thickness per UG-45(a): tr1 = 0.1563 in (E =1)
Wall thickness per UG-45(b)(1): tr2 = 0.5 in
Wall thickness per UG-16(b): tr3 = 0.1875 in
Standard wall pipe per UG-45(b)(4): tr4 = 0.2598 in
The greater of tr2 or tr3: tr5 = 0.5 in
The lesser of tr4 or tr5: tr6 = 0.2598 in
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Required per UG-45 is the larger of tr1 or tr6 = 0.2598 in
Available nozzle wall thickness new, tn = 0.8750*0.344 = 0.301 in
The nozzle neck thickness is adequate.
Reinforcement Calculations for MAP
The vessel wall thickness governs the MAP of this nozzle.
UG-37 Area Calculation Summary(in2)
For P = 724.61 psi @ 70 °F
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5A
weldstreq tmin
This nozzle is exempt from area
calculations per UG-36(c)(3)(a)0.1348 0.3010
Weld Failure Path Analysis Summary
The nozzle is exempt from weld strengthcalculations per UW-15(b)(2)
UW-16 Weld Sizing Summary
Weld descriptionRequired weldthroat size (in)
Actual weldthroat size (in)
Status
Nozzle to shell fillet (Leg41) 0.2408 0.2408 weld size is adequate
Calculations for internal pressure 724.61 psi @ 70 °F
Limits of reinforcement per UG-40
Parallel to the vessel wall: (Rn + tn + t )= 1.6875 in
Normal to the vessel wall outside: 2.5*(tn - Cn) + te = 0.86 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn /(Sn*E - 0.6*P)
= 724.6132*0.8435/(17100*1 - 0.6*724.6132)
= 0.0367 in
Required thickness tr from UG-37(a)
tr = P*Ro /(S*E + 0.4*P)
= 724.6132*14/(20000*1 + 0.4*724.6132)
= 0.5 in
This opening does not require reinforcement per UG-36(c)(3)(a)
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UW-16(c) Weld Check
Fillet weld: tmin = lesser of 0.75 or tn or t = 0.344 intc(min) = lesser of 0.25 or 0.7*tmin = 0.2408 intc(actual) = 0.7*Leg = 0.7*0.344 = 0.2408 in
The fillet weld size is satisfactory.
Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e).
UG-45 Nozzle Neck Thickness Check
Wall thickness per UG-45(a): tr1 = 0.0367 in (E =1)
Wall thickness per UG-45(b)(1): tr2 = 0.5 in
Wall thickness per UG-16(b): tr3 = 0.0625 in
Standard wall pipe per UG-45(b)(4): tr4 = 0.1348 in
The greater of tr2 or tr3: tr5 = 0.5 in
The lesser of tr4 or tr5: tr6 = 0.1348 in
Required per UG-45 is the larger of tr1 or tr6 = 0.1348 in
Available nozzle wall thickness new, tn = 0.8750*0.344 = 0.301 in
The nozzle neck thickness is adequate.
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Briddle Connection (N6B)
ASME Section VIII Division 1, 2004 Edition, A05 Addenda
tw(lower) = 0.5000 in
Leg41 = 0.3440 in
Note: round inside edges per UG-76(c)
Located on: Cylinder #1
Liquid static head included: 0.5824 psi
Nozzle material specification: SA-106 B Smls pipe (ASME II-D p. 10, ln. 5)
Nozzle longitudinal joint efficiency: 1.00
Nozzle description: 2" Sch 160
Flange description: 2 inch 300# WN A105
Bolt Material: SA-193 B7 Bolt <= 2 1/2 (ASME II-D p. 382, ln. 33)
Flange rated MDMT: -55°F
(UCS-66(b)(1)(b))
Liquid static head on flange: 0.552 psi
ASME B16.5 flange rating MAWP: 727 psi @ 120°F
ASME B16.5 flange rating MAP: 740 psi @ 70°F
ASME B16.5 flange hydro test: 1125 psi @ 70°F
Nozzle orientation: 90°
Local vessel minimum thickness: 0.5 in
Nozzle center line offset to datum line: 10.7087 in
End of nozzle to shell center: 20 in
Nozzle inside diameter, new: 1.687 in
Nozzle nominal wall thickness: 0.344 in
Nozzle corrosion allowance: 0.125 in
Projection available outside vessel, Lpr: 6 in
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Reinforcement Calculations for Internal Pressure
The vessel wall thickness governs the MAWP of this nozzle.
UG-37 Area Calculation Summary(in2)
For P = 541.46 psi @ 120 °F
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5A
weldstreq tmin
This nozzle is exempt from areacalculations per UG-36(c)(3)(a)
0.2598 0.3010
Weld Failure Path Analysis Summary
The nozzle is exempt from weld strength
calculations per UW-15(b)(2)
UW-16 Weld Sizing Summary
Weld descriptionRequired weldthroat size (in)
Actual weldthroat size (in)
Status
Nozzle to shell fillet (Leg41) 0.1533 0.2408 weld size is adequate
Calculations for internal pressure 541.46 psi @ 120 °F
Fig UCS-66.2 general note (1) applies.
Nozzle is impact test exempt to -155 °F per UCS-66(b)(3) (coincident ratio = 0.1208).
Nozzle UCS-66 governing thk: 0.301 in
Nozzle rated MDMT: -155 °F
Limits of reinforcement per UG-40
Parallel to the vessel wall: d = 1.937 in
Normal to the vessel wall outside: 2.5*(tn - Cn) + te = 0.5475 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn /(Sn*E - 0.6*P)
= 541.4607*0.9685/(17100*1 - 0.6*541.4607)
= 0.0313 in
Required thickness tr from UG-37(a)
tr = P*Ro /(S*E + 0.4*P)
= 541.4607*14/(20000*1 + 0.4*541.4607)
= 0.375 in
This opening does not require reinforcement per UG-36(c)(3)(a)
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UW-16(c) Weld Check
Fillet weld: tmin = lesser of 0.75 or tn or t = 0.219 intc(min) = lesser of 0.25 or 0.7*tmin = 0.1533 in
tc(actual) = 0.7*Leg = 0.7*0.344 = 0.2408 in
The fillet weld size is satisfactory.
Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e).
UG-45 Nozzle Neck Thickness Check
Wall thickness per UG-45(a): tr1 = 0.1563 in (E =1)
Wall thickness per UG-45(b)(1): tr2 = 0.5 in
Wall thickness per UG-16(b): tr3 = 0.1875 in
Standard wall pipe per UG-45(b)(4): tr4 = 0.2598 in
The greater of tr2 or tr3: tr5 = 0.5 in
The lesser of tr4 or tr5: tr6 = 0.2598 in
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Required per UG-45 is the larger of tr1 or tr6 = 0.2598 in
Available nozzle wall thickness new, tn = 0.8750*0.344 = 0.301 in
The nozzle neck thickness is adequate.
Reinforcement Calculations for MAP
The vessel wall thickness governs the MAP of this nozzle.
UG-37 Area Calculation Summary(in2)
For P = 724.61 psi @ 70 °F
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5A
weldstreq tmin
This nozzle is exempt from area
calculations per UG-36(c)(3)(a)0.1348 0.3010
Weld Failure Path Analysis Summary
The nozzle is exempt from weld strengthcalculations per UW-15(b)(2)
UW-16 Weld Sizing Summary
Weld descriptionRequired weldthroat size (in)
Actual weldthroat size (in)
Status
Nozzle to shell fillet (Leg41) 0.2408 0.2408 weld size is adequate
Calculations for internal pressure 724.61 psi @ 70 °F
Limits of reinforcement per UG-40
Parallel to the vessel wall: (Rn + tn + t )= 1.6875 in
Normal to the vessel wall outside: 2.5*(tn - Cn) + te = 0.86 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn /(Sn*E - 0.6*P)
= 724.6132*0.8435/(17100*1 - 0.6*724.6132)
= 0.0367 in
Required thickness tr from UG-37(a)
tr = P*Ro /(S*E + 0.4*P)
= 724.6132*14/(20000*1 + 0.4*724.6132)
= 0.5 in
This opening does not require reinforcement per UG-36(c)(3)(a)
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UW-16(c) Weld Check
Fillet weld: tmin = lesser of 0.75 or tn or t = 0.344 intc(min) = lesser of 0.25 or 0.7*tmin = 0.2408 intc(actual) = 0.7*Leg = 0.7*0.344 = 0.2408 in
The fillet weld size is satisfactory.
Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e).
UG-45 Nozzle Neck Thickness Check
Wall thickness per UG-45(a): tr1 = 0.0367 in (E =1)
Wall thickness per UG-45(b)(1): tr2 = 0.5 in
Wall thickness per UG-16(b): tr3 = 0.0625 in
Standard wall pipe per UG-45(b)(4): tr4 = 0.1348 in
The greater of tr2 or tr3: tr5 = 0.5 in
The lesser of tr4 or tr5: tr6 = 0.1348 in
Required per UG-45 is the larger of tr1 or tr6 = 0.1348 in
Available nozzle wall thickness new, tn = 0.8750*0.344 = 0.301 in
The nozzle neck thickness is adequate.
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Drain (N3)
ASME Section VIII Division 1, 2004 Edition, A05 Addenda
tw(lower) = 0.5000 in
Leg41 = 0.3571 in
Note: round inside edges per UG-76(c)
Located on: Ellipsoidal Head #2
Liquid static head included: 1.498 psi
Nozzle material specification: SA-106 B Smls pipe (ASME II-D p. 10, ln. 5)
Nozzle longitudinal joint efficiency: 1.00
Nozzle description: 2" Sch 160
Flange description: 2 inch 300# WN A105
Bolt Material: SA-193 B7 Bolt <= 2 1/2 (ASME II-D p. 382, ln. 33)
Flange rated MDMT: -55°F
(UCS-66(b)(1)(b))
Liquid static head on flange: 1.5161 psi
ASME B16.5 flange rating MAWP: 727 psi @ 120°F
ASME B16.5 flange rating MAP: 740 psi @ 70°F
ASME B16.5 flange hydro test: 1125 psi @ 70°F
Nozzle orientation: 0°
Calculated as hillside: no
Local vessel minimum thickness: 0.5 in
End of nozzle to datum line: -16 in
Nozzle inside diameter, new: 1.687 in
Nozzle nominal wall thickness: 0.344 in
Nozzle corrosion allowance: 0.125 in
Projection available outside vessel, Lpr: 6.7761 in
Distance to head center, R: 0 in
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Reinforcement Calculations for Internal Pressure
The vessel wall thickness governs the MAWP of this nozzle.
UG-37 Area Calculation Summary(in2)
For P = 602.39 psi @ 120 °F
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5A
weldstreq tmin
This nozzle is exempt from areacalculations per UG-36(c)(3)(a)
0.2598 0.3010
Weld Failure Path Analysis Summary
The nozzle is exempt from weld strength
calculations per UW-15(b)(2)
UW-16 Weld Sizing Summary
Weld descriptionRequired weldthroat size (in)
Actual weldthroat size (in)
Status
Nozzle to shell fillet (Leg41) 0.1533 0.2500 weld size is adequate
Calculations for internal pressure 602.39 psi @ 120 °F
Fig UCS-66.2 general note (1) applies.
Nozzle is impact test exempt to -155 °F per UCS-66(b)(3) (coincident ratio = 0.12111).
Nozzle UCS-66 governing thk: 0.301 in
Nozzle rated MDMT: -155 °F
Limits of reinforcement per UG-40
Parallel to the vessel wall: d = 1.937 in
Normal to the vessel wall outside: 2.5*(tn - Cn) + te = 0.5475 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn /(Sn*E - 0.6*P)
= 602.3891*0.9685/(17100*1 - 0.6*602.3891)
= 0.0349 in
Required thickness tr from UG-37(a)(3)
tr = P*K1*Do /(2*S*E + 0.8*P)
= 602.3891*0.9*Diao /(2*20000*1 + 0.8*602.3891)
= 0.375 in
This opening does not require reinforcement per UG-36(c)(3)(a)
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UW-16(c) Weld Check
Fillet weld: tmin = lesser of 0.75 or tn or t = 0.219 intc(min) = lesser of 0.25 or 0.7*tmin = 0.1533 in
tc(actual) = 0.7*Leg = 0.7*0.3571 = 0.25 in
The fillet weld size is satisfactory.
Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e).
UG-45 Nozzle Neck Thickness Check
Interpretation VIII-1-83-66 has been applied.
Wall thickness per UG-45(a): tr1 = 0.1599 in (E =1)
Wall thickness per UG-45(b)(1): tr2 = 0.5307 in
Wall thickness per UG-16(b): tr3 = 0.1875 in
Standard wall pipe per UG-45(b)(4): tr4 = 0.2598 in
The greater of tr2 or tr3: tr5 = 0.5307 in
The lesser of tr4 or tr5: tr6 = 0.2598 in
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Required per UG-45 is the larger of tr1 or tr6 = 0.2598 in
Available nozzle wall thickness new, tn = 0.8750*0.344 = 0.301 in
The nozzle neck thickness is adequate.
Reinforcement Calculations for MAP
The attached ASME B16.5 flange limits the nozzle MAP.
UG-37 Area Calculation Summary(in2)
For P = 740 psi @ 70 °F
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5A
weldstreq tmin
This nozzle is exempt from area
calculations per UG-36(c)(3)(a)0.1348 0.3010
Weld Failure Path Analysis Summary
The nozzle is exempt from weld strengthcalculations per UW-15(b)(2)
UW-16 Weld Sizing Summary
Weld descriptionRequired weldthroat size (in)
Actual weldthroat size (in)
Status
Nozzle to shell fillet (Leg41) 0.2408 0.2500 weld size is adequate
Calculations for internal pressure 740 psi @ 70 °F
Limits of reinforcement per UG-40
Parallel to the vessel wall: (Rn + tn + t )= 1.6875 in
Normal to the vessel wall outside: 2.5*(tn - Cn) + te = 0.86 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn /(Sn*E - 0.6*P)
= 740*0.8435/(17100*1 - 0.6*740)
= 0.0375 in
Required thickness tr from UG-37(a)(3)
tr = P*K1*Do /(2*S*E + 0.8*P)
= 740*0.9*Diao /(2*20000*1 + 0.8*740)
= 0.4594 in
This opening does not require reinforcement per UG-36(c)(3)(a)
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UW-16(c) Weld Check
Fillet weld: tmin = lesser of 0.75 or tn or t = 0.344 intc(min) = lesser of 0.25 or 0.7*tmin = 0.2408 intc(actual) = 0.7*Leg = 0.7*0.3571 = 0.25 in
The fillet weld size is satisfactory.
Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e).
UG-45 Nozzle Neck Thickness Check
Interpretation VIII-1-83-66 has been applied.
Wall thickness per UG-45(a): tr1 = 0.0375 in (E =1)
Wall thickness per UG-45(b)(1): tr2 = 0.5013 in
Wall thickness per UG-16(b): tr3 = 0.0625 in
Standard wall pipe per UG-45(b)(4): tr4 = 0.1348 in
The greater of tr2 or tr3: tr5 = 0.5013 in
The lesser of tr4 or tr5: tr6 = 0.1348 in
Required per UG-45 is the larger of tr1 or tr6 = 0.1348 in
Available nozzle wall thickness new, tn = 0.8750*0.344 = 0.301 in
The nozzle neck thickness is adequate.
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Gas Outlet (N2)
ASME Section VIII Division 1, 2004 Edition, A05 Addenda
tw(lower) = 0.5000 in
Leg41 = 0.4000 in
tw(upper) = 0.5000 in
Leg42 = 0.4000 inDp = 8.5000 in
te = 0.5000 in
Note: round inside edges per UG-76(c)
Located on: Ellipsoidal Head #1
Liquid static head included: 0 psi
Nozzle material specification: SA-106 B Smls pipe (ASME II-D p. 10, ln. 5)
Nozzle longitudinal joint efficiency: 1.00
Nozzle description: 4" Sch 160
Pad material specification: SA-516 70 (ASME II-D p. 14, ln. 20)
Pad diameter: 8.5 in
Flange description: 4 inch 300# WN A105
Bolt Material: SA-193 B7 Bolt <= 2 1/2 (ASME II-D p. 382, ln. 33)
Flange rated MDMT: -55°F
(UCS-66(b)(1)(b))
Liquid static head on flange: 0 psi
ASME B16.5 flange rating MAWP: 727 psi @ 120°F
ASME B16.5 flange rating MAP: 740 psi @ 70°F
ASME B16.5 flange hydro test: 1125 psi @ 70°F
Nozzle orientation: 0°
Calculated as hillside: no
Local vessel minimum thickness: 0.5 in
End of nozzle to datum line: 112 in
Nozzle inside diameter, new: 3.438 in
Nozzle nominal wall thickness: 0.531 in
Nozzle corrosion allowance: 0.125 in
Projection available outside vessel, Lpr: 6.8442 in
Distance to head center, R: 0 in
Pad is split: no
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Reinforcement Calculations for Internal Pressure
The vessel wall thickness governs the MAWP of this nozzle.
UG-37 Area Calculation Summary (in2)For P = 602.41 psi @ 120 °F
The opening is adequately reinforced
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5A
weldstreq tmin
1.4272 2.1192 -- 0.5444 -- 1.4380 0.1368 0.3324 0.4646
Weld Failure Path Analysis Summary (lbf)All failure paths are stronger than the applicable weld loads
Weld loadW
Weld loadW1-1
Path 1-1strength
Weld loadW2-2
Path 2-2strength
Weld loadW3-3
Path 3-3strength
28,543.05 42,384.00 83,591.66 18,830.95 115,229.22 47,590.95 91,569.58
UW-16 Weld Sizing Summary
Weld descriptionRequired weldthroat size (in)
Actual weldthroat size (in)
Status
Nozzle to pad fillet (Leg41) 0.2500 0.2800 weld size is adequate
Pad to shell fillet (Leg42) 0.1875 0.2800 weld size is adequate
Nozzle to pad groove (Upper) 0.2842 0.5000 weld size is adequate
Calculations for internal pressure 602.41 psi @ 120 °F
Fig UCS-66.2 general note (1) applies.
Nozzle is impact test exempt to -155 °F per UCS-66(b)(3) (coincident ratio = 0.119).
Pad impact test exemption temperature from Fig UCS-66 Curve B = -7 °F
Fig UCS-66.1 MDMT reduction = 38.3 °F, (coincident ratio = 0.61693).
Nozzle UCS-66 governing thk: 0.4646 in
Nozzle rated MDMT: -155 °F
Pad UCS-66 governing thickness: 0.5 in
Pad rated MDMT: -45.3 °F
Limits of reinforcement per UG-40
Parallel to the vessel wall: d = 3.688 in
Normal to the vessel wall outside: 2.5*(t - C) = 0.9375 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn /(Sn*E - 0.6*P)
= 602.4132*1.844/(17100*1 - 0.6*602.4132)
= 0.0664 in
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Required thickness tr from UG-37(a)(3)
tr = P*K1*Do /(2*S*E + 0.8*P)
= 602.4132*0.9*Diao /(2*20000*1 + 0.8*602.4132)
= 0.375 in
Area required per UG-37(c)
Allowable stresses: Sn = 17100, Sv = 20000, Sp = 20000 psi
fr1 = lesser of 1 or Sn /Sv = 0.855fr2 = lesser of 1 or Sn /Sv = 0.855
fr3 = lesser of fr2 or Sp /Sv = 0.855fr4 = lesser of 1 or Sp /Sv = 1
A = d*tr*F + 2*tn*tr*F*(1 - fr1)
= 3.688*0.375*1 + 2*0.406*0.375*1*(1 - 0.855)
= 1.4272 in2
Area available from FIG. UG-37.1
A1 = larger of the following= 0 in2
= d*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)
= 3.688*(1*0.375 - 1*0.375) - 2*0.406*(1*0.375 - 1*0.375)*(1 - 0.855)
= 0 in2
= 2*(t + tn)*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)
= 2*(0.375 + 0.406)*(1*0.375 - 1*0.375) - 2*0.406*(1*0.375 - 1*0.375)*(1 - 0.855)
= 0 in2
A2 = smaller of the following= 0.5444 in2
= 5*(tn - trn)*fr2*t
= 5*(0.406 - 0.0664)*0.855*0.375
= 0.5444 in2
= 2*(tn - trn)*(2.5*tn + te)*fr2
= 2*(0.406 - 0.0664)*(2.5*0.406 + 0.5)*0.855
= 0.8798 in2
A41 = Leg2
*fr3= 0.42*0.855
= 0.1368 in2
A42 = Leg2*fr4
= 02*1
= 0 in2
(Part of the weld is outside of the limits)
A5 = (Dp - d - 2*tn)*te*fr4
= (7.376 - 3.688 - 2*0.406)*0.5*1
= 1.438 in2
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Area = A1 + A2 + A41 + A42 + A5
= 0 + 0.5444 + 0.1368 + 0 + 1.438
= 2.1192 in2
As Area >= A the reinforcement is adequate.
UW-16(c)(2) Weld Check
Inner fillet: tmin = lesser of 0.75 or tn or te = 0.406 in
tc(min) = lesser of 0.25 or 0.7*tmin = 0.25 in
tc(actual) = 0.7*Leg = 0.7*0.4 = 0.28 in
Outer fillet: tmin = lesser of 0.75 or te or t = 0.375 in
tw(min) = 0.5*tmin = 0.1875 in
tw(actual) = 0.7*Leg = 0.7*0.4 = 0.28 in
UG-45 Nozzle Neck Thickness Check
Interpretation VIII-1-83-66 has been applied.
Wall thickness per UG-45(a): tr1 = 0.1914 in (E =1)
Wall thickness per UG-45(b)(1): tr2 = 0.5307 in
Wall thickness per UG-16(b): tr3 = 0.1875 in
Standard wall pipe per UG-45(b)(4): tr4 = 0.3324 in
The greater of tr2 or tr3: tr5 = 0.5307 in
The lesser of tr4 or tr5: tr6 = 0.3324 in
Required per UG-45 is the larger of tr1 or tr6 = 0.3324 in
Available nozzle wall thickness new, tn = 0.8750*0.531 = 0.4646 in
The nozzle neck thickness is adequate.
Allowable stresses in joints UG-45(c) and UW-15(c)
Groove weld in tension: 0.74*20000 = 14800 psi
Nozzle wall in shear: 0.7*17100 = 11970 psi
Inner fillet weld in shear: 0.49*17100 = 8379 psi
Outer fillet weld in shear: 0.49*20000 = 9800 psi
Upper groove weld in tension: 0.74*20000 = 14800 psi
Strength of welded joints:
(1) Inner fillet weld in shear(π /2)*Nozzle OD*Leg*Si = (π /2)*4.5*0.4*8379 = 23691.06 lbf
(2) Outer fillet weld in shear
(π /2)*Pad OD*Leg*So = (π /2)*8.5*0.4*9800 = 52338.94 lbf
(3) Nozzle wall in shear
(π /2)*Mean nozzle dia*tn*Sn = (π /2)*4.094*0.406*11970 = 31252.73 lbf
(4) Groove weld in tension(π /2)*Nozzle OD*t
w
*Sg
= (π /2)*4.5*0.375*14800 = 39230.64 lbf
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(6) Upper groove weld in tension
(π /2)*Nozzle OD*tw*Sg = (π /2)*4.5*0.5*14800 = 52307.52 lbf
Loading on welds per UG-41(b)(1)
W = (A - A1 + 2*tn*fr1*(E1*t - F*tr))*Sv
= (1.4272 - 0 + 2*0.406*0.855*(1*0.375 - 1*0.375))*20000
= 28543.05 lbf
W1-1 = (A2 + A5 + A41 + A42)*Sv
= (0.5444 + 1.438 + 0.1368 + 0)*20000
= 42384 lbf
W2-2 = (A2 + A3 + A41 + A43 + 2*tn*t*fr1)*Sv
= (0.5444 + 0 + 0.1368 + 0 + 2*0.406*0.375*0.855)*20000
= 18830.95 lbf
W3-3 = (A2 + A3 + A5 + A41 + A42 + A43 + 2*tn*t*fr1)*Sv
= (0.5444 + 0 + 1.438 + 0.1368 + 0 + 0 + 2*0.406*0.375*0.855)*20000
= 47590.95 lbf
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Load for path 1-1 lesser of W or W1-1 = 28543.05 lbf
Path 1-1 through (2) & (3) = 52338.94 + 31252.73 = 83591.66 lbf
Path 1-1 is stronger than W so it is acceptable per UG-41(b)(2).
Load for path 2-2 lesser of W or W2-2 = 18830.95 lbf
Path 2-2 through (1), (4), (6) = 23691.06 + 39230.64 + 52307.52 = 115229.2 lbf
Path 2-2 is stronger than W2-2 so it is acceptable per UG-41(b)(1).
Load for path 3-3 lesser of W or W3-3 = 28543.05 lbf
Path 3-3 through (2), (4) = 52338.94 + 39230.64 = 91569.58 lbf
Path 3-3 is stronger than W so it is acceptable per UG-41(b)(2).
Reinforcement Calculations for MAP
The attached ASME B16.5 flange limits the nozzle MAP.
UG-37 Area Calculation Summary (in2)For P = 740 psi @ 70 °F
The opening is adequately reinforced
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5A
weldstreq tmin
1.6502 2.4298 0.1333 0.9717 -- 1.1880 0.1368 0.2074 0.4646
Weld Failure Path Analysis Summary (lbf)All failure paths are stronger than the applicable weld loads
Weld loadW
Weld loadW1-1
Path 1-1strength
Weld loadW2-2
Path 2-2strength
Weld loadW3-3
Path 3-3strength
31,074.51 45,930.00 91,965.80 31,250.10 128,306.10 55,010.10 104,646.45
UW-16 Weld Sizing Summary
Weld descriptionRequired weldthroat size (in)
Actual weldthroat size (in)
Status
Nozzle to pad fillet (Leg41) 0.2500 0.2800 weld size is adequate
Pad to shell fillet (Leg42) 0.2500 0.2800 weld size is adequate
Nozzle to pad groove (Upper) 0.3500 0.5000 weld size is adequate
Calculations for internal pressure 740 psi @ 70 °F
Limits of reinforcement per UG-40
Parallel to the vessel wall: d = 3.438 in
Normal to the vessel wall outside: 2.5*(t - C) = 1.25 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn /(Sn*E - 0.6*P)
= 740*1.719/(17100*1 - 0.6*740)
= 0.0764 in
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Required thickness tr from UG-37(a)(3)
tr = P*K1*Do /(2*S*E + 0.8*P)
= 740*0.9*Diao /(2*20000*1 + 0.8*740)
= 0.4594 in
Area required per UG-37(c)
Allowable stresses: Sn = 17100, Sv = 20000, Sp = 20000 psi
fr1 = lesser of 1 or Sn /Sv = 0.855fr2 = lesser of 1 or Sn /Sv = 0.855
fr3 = lesser of fr2 or Sp /Sv = 0.855fr4 = lesser of 1 or Sp /Sv = 1
A = d*tr*F + 2*tn*tr*F*(1 - fr1)
= 3.438*0.4594*1 + 2*0.531*0.4594*1*(1 - 0.855)
= 1.6502 in2
Area available from FIG. UG-37.1
A1 = larger of the following= 0.1333 in2
= d*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)
= 3.438*(1*0.5 - 1*0.4594) - 2*0.531*(1*0.5 - 1*0.4594)*(1 - 0.855)
= 0.1333 in2
= 2*(t + tn)*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)
= 2*(0.5 + 0.531)*(1*0.5 - 1*0.4594) - 2*0.531*(1*0.5 - 1*0.4594)*(1 - 0.855)
= 0.0775 in2
A2 = smaller of the following= 0.9717 in2
= 5*(tn - trn)*fr2*t
= 5*(0.531 - 0.0764)*0.855*0.5
= 0.9717 in2
= 2*(tn - trn)*(2.5*tn + te)*fr2
= 2*(0.531 - 0.0764)*(2.5*0.531 + 0.5)*0.855
= 1.4206 in2
A41 = Leg2
*fr3= 0.42*0.855
= 0.1368 in2
A42 = Leg2*fr4
= 02*1
= 0 in2
(Part of the weld is outside of the limits)
A5 = (Dp - d - 2*tn)*te*fr4
= (6.876 - 3.438 - 2*0.531)*0.5*1
= 1.188 in2
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Area = A1 + A2 + A41 + A42 + A5
= 0.1333 + 0.9717 + 0.1368 + 0 + 1.188
= 2.4298 in2
As Area >= A the reinforcement is adequate.
UW-16(c)(2) Weld Check
Inner fillet: tmin = lesser of 0.75 or tn or te = 0.5 in
tc(min) = lesser of 0.25 or 0.7*tmin = 0.25 in
tc(actual) = 0.7*Leg = 0.7*0.4 = 0.28 in
Outer fillet: tmin = lesser of 0.75 or te or t = 0.5 in
tw(min) = 0.5*tmin = 0.25 in
tw(actual) = 0.7*Leg = 0.7*0.4 = 0.28 in
UG-45 Nozzle Neck Thickness Check
Interpretation VIII-1-83-66 has been applied.
Wall thickness per UG-45(a): tr1 = 0.0764 in (E =1)
Wall thickness per UG-45(b)(1): tr2 = 0.5013 in
Wall thickness per UG-16(b): tr3 = 0.0625 in
Standard wall pipe per UG-45(b)(4): tr4 = 0.2074 in
The greater of tr2 or tr3: tr5 = 0.5013 in
The lesser of tr4 or tr5: tr6 = 0.2074 in
Required per UG-45 is the larger of tr1 or tr6 = 0.2074 in
Available nozzle wall thickness new, tn = 0.8750*0.531 = 0.4646 in
The nozzle neck thickness is adequate.
Allowable stresses in joints UG-45(c) and UW-15(c)
Groove weld in tension: 0.74*20000 = 14800 psi
Nozzle wall in shear: 0.7*17100 = 11970 psi
Inner fillet weld in shear: 0.49*17100 = 8379 psi
Outer fillet weld in shear: 0.49*20000 = 9800 psi
Upper groove weld in tension: 0.74*20000 = 14800 psi
Strength of welded joints:
(1) Inner fillet weld in shear(π /2)*Nozzle OD*Leg*Si = (π /2)*4.5*0.4*8379 = 23691.06 lbf
(2) Outer fillet weld in shear
(π /2)*Pad OD*Leg*So = (π /2)*8.5*0.4*9800 = 52338.94 lbf
(3) Nozzle wall in shear
(π /2)*Mean nozzle dia*tn*Sn = (π /2)*3.969*0.531*11970 = 39626.86 lbf
(4) Groove weld in tension(π /2)*Nozzle OD*t
w
*Sg
= (π /2)*4.5*0.5*14800 = 52307.52 lbf
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(6) Upper groove weld in tension
(π /2)*Nozzle OD*tw*Sg = (π /2)*4.5*0.5*14800 = 52307.52 lbf
Loading on welds per UG-41(b)(1)
W = (A - A1 + 2*tn*fr1*(E1*t - F*tr))*Sv
= (1.6502 - 0.1333 + 2*0.531*0.855*(1*0.5 - 1*0.4594))*20000
= 31074.51 lbf
W1-1 = (A2 + A5 + A41 + A42)*Sv
= (0.9717 + 1.188 + 0.1368 + 0)*20000
= 45930 lbf
W2-2 = (A2 + A3 + A41 + A43 + 2*tn*t*fr1)*Sv
= (0.9717 + 0 + 0.1368 + 0 + 2*0.531*0.5*0.855)*20000
= 31250.1 lbf
W3-3 = (A2 + A3 + A5 + A41 + A42 + A43 + 2*tn*t*fr1)*Sv
= (0.9717 + 0 + 1.188 + 0.1368 + 0 + 0 + 2*0.531*0.5*0.855)*20000
= 55010.1 lbf
Load for path 1-1 lesser of W or W1-1 = 31074.51 lbf
Path 1-1 through (2) & (3) = 52338.94 + 39626.86 = 91965.8 lbf
Path 1-1 is stronger than W so it is acceptable per UG-41(b)(2).
Load for path 2-2 lesser of W or W2-2 = 31074.51 lbf
Path 2-2 through (1), (4), (6) = 23691.06 + 52307.52 + 52307.52 = 128306.1 lbf
Path 2-2 is stronger than W so it is acceptable per UG-41(b)(2).
Load for path 3-3 lesser of W or W3-3 = 31074.51 lbf
Path 3-3 through (2), (4) = 52338.94 + 52307.52 = 104646.5 lbf
Path 3-3 is stronger than W so it is acceptable per UG-41(b)(2).
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Inlet (N1)
ASME Section VIII Division 1, 2004 Edition, A05 Addenda
tw(lower) = 0.5000 in
Leg41 = 0.4000 in
tw(upper) = 0.5000 in
Leg42 = 0.4000 inDp = 8.5000 in
te = 0.5000 in
Note: round inside edges per UG-76(c)
Located on: Cylinder #1
Liquid static head included: 0 psi
Nozzle material specification: SA-106 B Smls pipe (ASME II-D p. 10, ln. 5)
Nozzle longitudinal joint efficiency: 1.00
Nozzle description: 4" Sch 160
Pad material specification: SA-516 70 (ASME II-D p. 14, ln. 20)
Pad diameter: 8.5 in
Flange description: 4 inch 300# WN A105
Bolt Material: SA-193 B7 Bolt <= 2 1/2 (ASME II-D p. 382, ln. 33)
Flange rated MDMT: -55°F
(UCS-66(b)(1)(b))
Liquid static head on flange: 0 psi
ASME B16.5 flange rating MAWP: 727 psi @ 120°F
ASME B16.5 flange rating MAP: 740 psi @ 70°F
ASME B16.5 flange hydro test: 1125 psi @ 70°F
Nozzle orientation: 0°
Local vessel minimum thickness: 0.5 in
Nozzle center line offset to datum line: 50 in
End of nozzle to shell center: 20 in
Nozzle inside diameter, new: 3.438 in
Nozzle nominal wall thickness: 0.531 in
Nozzle corrosion allowance: 0.125 in
Projection available outside vessel, Lpr: 6 in
Pad is split: no
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Reinforcement Calculations for Internal Pressure
The vessel wall thickness governs the MAWP of this nozzle.
UG-37 Area Calculation Summary (in2)For P = 541.46 psi @ 120 °F
The opening is adequately reinforced
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5A
weldstreq tmin
1.4270 2.1304 0.0001 0.5555 -- 1.4380 0.1368 0.3324 0.4646
Weld Failure Path Analysis Summary (lbf)All failure paths are stronger than the applicable weld loads
Weld loadW
Weld loadW1-1
Path 1-1strength
Weld loadW2-2
Path 2-2strength
Weld loadW3-3
Path 3-3strength
28,538.56 42,606.00 83,591.66 19,052.95 115,229.22 47,812.95 91,569.58
UW-16 Weld Sizing Summary
Weld descriptionRequired weldthroat size (in)
Actual weldthroat size (in)
Status
Nozzle to pad fillet (Leg41) 0.2500 0.2800 weld size is adequate
Pad to shell fillet (Leg42) 0.1875 0.2800 weld size is adequate
Nozzle to pad groove (Upper) 0.2842 0.5000 weld size is adequate
Calculations for internal pressure 541.46 psi @ 120 °F
Fig UCS-66.2 general note (1) applies.
Nozzle is impact test exempt to -155 °F per UCS-66(b)(3) (coincident ratio = 0.119).
Pad impact test exemption temperature from Fig UCS-66 Curve B = -7 °F
Fig UCS-66.1 MDMT reduction = 31.5 °F, (coincident ratio = 0.68547).
Nozzle UCS-66 governing thk: 0.4646 in
Nozzle rated MDMT: -155 °F
Pad UCS-66 governing thickness: 0.5 in
Pad rated MDMT: -38.5 °F
Limits of reinforcement per UG-40
Parallel to the vessel wall: d = 3.688 in
Normal to the vessel wall outside: 2.5*(t - C) = 0.9375 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn /(Sn*E - 0.6*P)
= 541.4581*1.844/(17100*1 - 0.6*541.4581)
= 0.0595 in
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Required thickness tr from UG-37(a)
tr = P*Ro /(S*E + 0.4*P)
= 541.4581*14/(20000*1 + 0.4*541.4581)
= 0.375 in
Area required per UG-37(c)
Allowable stresses: Sn = 17100, Sv = 20000, Sp = 20000 psi
fr1 = lesser of 1 or Sn /Sv = 0.855fr2 = lesser of 1 or Sn /Sv = 0.855
fr3 = lesser of fr2 or Sp /Sv = 0.855fr4 = lesser of 1 or Sp /Sv = 1
A = d*tr*F + 2*tn*tr*F*(1 - fr1)
= 3.688*0.375*1 + 2*0.406*0.375*1*(1 - 0.855)
= 1.427 in2
Area available from FIG. UG-37.1
A1 = larger of the following= 0.0001 in2
= d*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)
= 3.688*(1*0.375 - 1*0.375) - 2*0.406*(1*0.375 - 1*0.375)*(1 - 0.855)
= 0.0001 in2
= 2*(t + tn)*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)
= 2*(0.375 + 0.406)*(1*0.375 - 1*0.375) - 2*0.406*(1*0.375 - 1*0.375)*(1 - 0.855)
= 0.0001 in2
A2 = smaller of the following= 0.5555 in2
= 5*(tn - trn)*fr2*t
= 5*(0.406 - 0.0595)*0.855*0.375
= 0.5555 in2
= 2*(tn - trn)*(2.5*tn + te)*fr2
= 2*(0.406 - 0.0595)*(2.5*0.406 + 0.5)*0.855
= 0.8977 in2
A41 = Leg2
*fr3= 0.42*0.855
= 0.1368 in2
A42 = Leg2*fr4
= 02*1
= 0 in2
(Part of the weld is outside of the limits)
A5 = (Dp - d - 2*tn)*te*fr4
= (7.376 - 3.688 - 2*0.406)*0.5*1
= 1.438 in2
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Area = A1 + A2 + A41 + A42 + A5
= 0.0001 + 0.5555 + 0.1368 + 0 + 1.438
= 2.1304 in2
As Area >= A the reinforcement is adequate.
UW-16(c)(2) Weld Check
Inner fillet: tmin = lesser of 0.75 or tn or te = 0.406 in
tc(min) = lesser of 0.25 or 0.7*tmin = 0.25 in
tc(actual) = 0.7*Leg = 0.7*0.4 = 0.28 in
Outer fillet: tmin = lesser of 0.75 or te or t = 0.375 in
tw(min) = 0.5*tmin = 0.1875 in
tw(actual) = 0.7*Leg = 0.7*0.4 = 0.28 in
UG-45 Nozzle Neck Thickness Check
Wall thickness per UG-45(a): tr1 = 0.1845 in (E =1)Wall thickness per UG-45(b)(1): tr2 = 0.5 in
Wall thickness per UG-16(b): tr3 = 0.1875 in
Standard wall pipe per UG-45(b)(4): tr4 = 0.3324 in
The greater of tr2 or tr3: tr5 = 0.5 in
The lesser of tr4 or tr5: tr6 = 0.3324 in
Required per UG-45 is the larger of tr1 or tr6 = 0.3324 in
Available nozzle wall thickness new, tn = 0.8750*0.531 = 0.4646 in
The nozzle neck thickness is adequate.
Allowable stresses in joints UG-45(c) and UW-15(c)
Groove weld in tension: 0.74*20000 = 14800 psi
Nozzle wall in shear: 0.7*17100 = 11970 psi
Inner fillet weld in shear: 0.49*17100 = 8379 psi
Outer fillet weld in shear: 0.49*20000 = 9800 psi
Upper groove weld in tension: 0.74*20000 = 14800 psi
Strength of welded joints:
(1) Inner fillet weld in shear(π /2)*Nozzle OD*Leg*Si = (π /2)*4.5*0.4*8379 = 23691.06 lbf
(2) Outer fillet weld in shear
(π /2)*Pad OD*Leg*So = (π /2)*8.5*0.4*9800 = 52338.94 lbf
(3) Nozzle wall in shear(π /2)*Mean nozzle dia*tn*Sn = (π /2)*4.094*0.406*11970 = 31252.73 lbf
(4) Groove weld in tension(π /2)*Nozzle OD*tw*Sg = (π /2)*4.5*0.375*14800 = 39230.64 lbf
(6) Upper groove weld in tension
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(π /2)*Nozzle OD*tw*Sg = (π /2)*4.5*0.5*14800 = 52307.52 lbf
Loading on welds per UG-41(b)(1)
W = (A - A1 + 2*tn*fr1*(E1*t - F*tr))*Sv
= (1.427 - 0.0001 + 2*0.406*0.855*(1*0.375 - 1*0.375))*20000
= 28538.56 lbf
W1-1 = (A2 + A5 + A41 + A42)*Sv
= (0.5555 + 1.438 + 0.1368 + 0)*20000
= 42606 lbf
W2-2 = (A2 + A3 + A41 + A43 + 2*tn*t*fr1)*Sv
= (0.5555 + 0 + 0.1368 + 0 + 2*0.406*0.375*0.855)*20000
= 19052.95 lbf
W3-3 = (A2 + A3 + A5 + A41 + A42 + A43 + 2*tn*t*fr1)*Sv
= (0.5555 + 0 + 1.438 + 0.1368 + 0 + 0 + 2*0.406*0.375*0.855)*20000= 47812.95 lbf
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Load for path 1-1 lesser of W or W1-1 = 28538.56 lbf
Path 1-1 through (2) & (3) = 52338.94 + 31252.73 = 83591.66 lbf
Path 1-1 is stronger than W so it is acceptable per UG-41(b)(2).
Load for path 2-2 lesser of W or W2-2 = 19052.95 lbf
Path 2-2 through (1), (4), (6) = 23691.06 + 39230.64 + 52307.52 = 115229.2 lbf
Path 2-2 is stronger than W2-2 so it is acceptable per UG-41(b)(1).
Load for path 3-3 lesser of W or W3-3 = 28538.56 lbf
Path 3-3 through (2), (4) = 52338.94 + 39230.64 = 91569.58 lbf
Path 3-3 is stronger than W so it is acceptable per UG-41(b)(2).
Reinforcement Calculations for MAP
The vessel wall thickness governs the MAP of this nozzle.
UG-37 Area Calculation Summary (in2)For P = 724.61 psi @ 70 °F
The opening is adequately reinforced
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5A
weldstreq tmin
1.7959 2.3002 0.0001 0.9753 -- 1.1880 0.1368 0.2074 0.4646
Weld Failure Path Analysis Summary (lbf)All failure paths are stronger than the applicable weld loads
Weld loadW
Weld loadW1-1
Path 1-1strength
Weld loadW2-2
Path 2-2strength
Weld loadW3-3
Path 3-3strength
35,916.82 46,002.00 91,965.80 31,322.10 128,306.10 55,082.10 104,646.45
UW-16 Weld Sizing Summary
Weld descriptionRequired weldthroat size (in)
Actual weldthroat size (in)
Status
Nozzle to pad fillet (Leg41) 0.2500 0.2800 weld size is adequate
Pad to shell fillet (Leg42) 0.2500 0.2800 weld size is adequate
Nozzle to pad groove (Upper) 0.3500 0.5000 weld size is adequate
Calculations for internal pressure 724.61 psi @ 70 °F
Limits of reinforcement per UG-40
Parallel to the vessel wall: d = 3.438 in
Normal to the vessel wall outside: 2.5*(t - C) = 1.25 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn /(Sn*E - 0.6*P)
= 724.6132*1.719/(17100*1 - 0.6*724.6132)
= 0.0747 in
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Required thickness tr from UG-37(a)
tr = P*Ro /(S*E + 0.4*P)
= 724.6132*14/(20000*1 + 0.4*724.6132)
= 0.5 in
Area required per UG-37(c)
Allowable stresses: Sn = 17100, Sv = 20000, Sp = 20000 psi
fr1 = lesser of 1 or Sn /Sv = 0.855fr2 = lesser of 1 or Sn /Sv = 0.855
fr3 = lesser of fr2 or Sp /Sv = 0.855fr4 = lesser of 1 or Sp /Sv = 1
A = d*tr*F + 2*tn*tr*F*(1 - fr1)
= 3.438*0.5*1 + 2*0.531*0.5*1*(1 - 0.855)
= 1.7959 in2
Area available from FIG. UG-37.1
A1 = larger of the following= 0.0001 in2
= d*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)
= 3.438*(1*0.5 - 1*0.5) - 2*0.531*(1*0.5 - 1*0.5)*(1 - 0.855)
= 0.0001 in2
= 2*(t + tn)*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)
= 2*(0.5 + 0.531)*(1*0.5 - 1*0.5) - 2*0.531*(1*0.5 - 1*0.5)*(1 - 0.855)
= 0 in2
A2 = smaller of the following= 0.9753 in2
= 5*(tn - trn)*fr2*t
= 5*(0.531 - 0.0747)*0.855*0.5
= 0.9753 in2
= 2*(tn - trn)*(2.5*tn + te)*fr2
= 2*(0.531 - 0.0747)*(2.5*0.531 + 0.5)*0.855
= 1.4259 in2
A41 = Leg2
*fr3= 0.42*0.855
= 0.1368 in2
A42 = Leg2*fr4
= 02*1
= 0 in2
(Part of the weld is outside of the limits)
A5 = (Dp - d - 2*tn)*te*fr4
= (6.876 - 3.438 - 2*0.531)*0.5*1
= 1.188 in2
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Area = A1 + A2 + A41 + A42 + A5
= 0.0001 + 0.9753 + 0.1368 + 0 + 1.188
= 2.3002 in2
As Area >= A the reinforcement is adequate.
UW-16(c)(2) Weld Check
Inner fillet: tmin = lesser of 0.75 or tn or te = 0.5 in
tc(min) = lesser of 0.25 or 0.7*tmin = 0.25 in
tc(actual) = 0.7*Leg = 0.7*0.4 = 0.28 in
Outer fillet: tmin = lesser of 0.75 or te or t = 0.5 in
tw(min) = 0.5*tmin = 0.25 in
tw(actual) = 0.7*Leg = 0.7*0.4 = 0.28 in
UG-45 Nozzle Neck Thickness Check
Wall thickness per UG-45(a): tr1 = 0.0747 in (E =1)Wall thickness per UG-45(b)(1): tr2 = 0.5 in
Wall thickness per UG-16(b): tr3 = 0.0625 in
Standard wall pipe per UG-45(b)(4): tr4 = 0.2074 in
The greater of tr2 or tr3: tr5 = 0.5 in
The lesser of tr4 or tr5: tr6 = 0.2074 in
Required per UG-45 is the larger of tr1 or tr6 = 0.2074 in
Available nozzle wall thickness new, tn = 0.8750*0.531 = 0.4646 in
The nozzle neck thickness is adequate.
Allowable stresses in joints UG-45(c) and UW-15(c)
Groove weld in tension: 0.74*20000 = 14800 psi
Nozzle wall in shear: 0.7*17100 = 11970 psi
Inner fillet weld in shear: 0.49*17100 = 8379 psi
Outer fillet weld in shear: 0.49*20000 = 9800 psi
Upper groove weld in tension: 0.74*20000 = 14800 psi
Strength of welded joints:
(1) Inner fillet weld in shear(π /2)*Nozzle OD*Leg*Si = (π /2)*4.5*0.4*8379 = 23691.06 lbf
(2) Outer fillet weld in shear
(π /2)*Pad OD*Leg*So = (π /2)*8.5*0.4*9800 = 52338.94 lbf
(3) Nozzle wall in shear(π /2)*Mean nozzle dia*tn*Sn = (π /2)*3.969*0.531*11970 = 39626.86 lbf
(4) Groove weld in tension(π /2)*Nozzle OD*tw*Sg = (π /2)*4.5*0.5*14800 = 52307.52 lbf
(6) Upper groove weld in tension
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(π /2)*Nozzle OD*tw*Sg = (π /2)*4.5*0.5*14800 = 52307.52 lbf
Loading on welds per UG-41(b)(1)
W = (A - A1 + 2*tn*fr1*(E1*t - F*tr))*Sv
= (1.7959 - 0.0001 + 2*0.531*0.855*(1*0.5 - 1*0.5))*20000
= 35916.82 lbf
W1-1 = (A2 + A5 + A41 + A42)*Sv
= (0.9753 + 1.188 + 0.1368 + 0)*20000
= 46002 lbf
W2-2 = (A2 + A3 + A41 + A43 + 2*tn*t*fr1)*Sv
= (0.9753 + 0 + 0.1368 + 0 + 2*0.531*0.5*0.855)*20000
= 31322.1 lbf
W3-3 = (A2 + A3 + A5 + A41 + A42 + A43 + 2*tn*t*fr1)*Sv
= (0.9753 + 0 + 1.188 + 0.1368 + 0 + 0 + 2*0.531*0.5*0.855)*20000= 55082.1 lbf
Load for path 1-1 lesser of W or W1-1 = 35916.82 lbf
Path 1-1 through (2) & (3) = 52338.94 + 39626.86 = 91965.8 lbf
Path 1-1 is stronger than W so it is acceptable per UG-41(b)(2).
Load for path 2-2 lesser of W or W2-2 = 31322.1 lbf
Path 2-2 through (1), (4), (6) = 23691.06 + 52307.52 + 52307.52 = 128306.1 lbf
Path 2-2 is stronger than W2-2 so it is acceptable per UG-41(b)(1).
Load for path 3-3 lesser of W or W3-3 = 35916.82 lbfPath 3-3 through (2), (4) = 52338.94 + 52307.52 = 104646.5 lbf
Path 3-3 is stronger than W so it is acceptable per UG-41(b)(2).
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Liquid Outlet (N4)
ASME Section VIII Division 1, 2004 Edition, A05 Addenda
tw(lower) = 0.5000 in
Leg41 = 0.3571 in
Leg43 = 0.3000 in
hnew = 4.0000 in
Note: round inside edges per UG-76(c)
Located on: Cylinder #1
Liquid static head included: 0.8246 psi
Nozzle material specification: SA-106 B Smls pipe (ASME II-D p. 10, ln. 5)
Nozzle longitudinal joint efficiency: 1.00
Nozzle description: 2" Sch 160
Flange description: 2 inch 300# WN A105
Bolt Material: SA-193 B7 Bolt <= 2 1/2 (ASME II-D p. 382, ln. 33)
Flange rated MDMT: -55°F
(UCS-66(b)(1)(b))
Liquid static head on flange: 0.7941 psi
ASME B16.5 flange rating MAWP: 727 psi @ 120°F
ASME B16.5 flange rating MAP: 740 psi @ 70°F
ASME B16.5 flange hydro test: 1125 psi @ 70°F
Nozzle orientation: 0°
Local vessel minimum thickness: 0.5 in
Nozzle center line offset to datum line: 4 in
End of nozzle to shell center: 20 in
Nozzle inside diameter, new: 1.687 in
Nozzle nominal wall thickness: 0.344 in
Nozzle corrosion allowance: 0.125 in
Projection available outside vessel, Lpr: 6 in
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Reinforcement Calculations for Internal Pressure
The vessel wall thickness governs the MAWP of this nozzle.
UG-37 Area Calculation Summary(in2)
For P = 541.49 psi @ 120 °F
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5A
weldstreq tmin
This nozzle is exempt from areacalculations per UG-36(c)(3)(a)
0.2598 0.3010
Weld Failure Path Analysis Summary
The nozzle is exempt from weld strength
calculations per UW-15(b)(2)
UW-16 Weld Sizing Summary
Weld descriptionRequired weldthroat size (in)
Actual weldthroat size (in)
Status
Nozzle to shell fillet (Leg41) 0.1533 0.2500 weld size is adequate
Calculations for internal pressure 541.49 psi @ 120 °F
Fig UCS-66.2 general note (1) applies.
Nozzle is impact test exempt to -155 °F per UCS-66(b)(3) (coincident ratio = 0.12088).
Nozzle UCS-66 governing thk: 0.301 in
Nozzle rated MDMT: -155 °F
Limits of reinforcement per UG-40
Parallel to the vessel wall: d = 1.937 in
Normal to the vessel wall outside: 2.5*(tn - Cn) + te = 0.5475 in
Normal to the vessel wall inside: 2.5*(tn - Cn - C) = 0.235 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn /(Sn*E - 0.6*P)
= 541.4855*0.9685/(17100*1 - 0.6*541.4855)
= 0.0313 in
Required thickness tr from UG-37(a)
tr = P*Ro /(S*E + 0.4*P)
= 541.4855*14/(20000*1 + 0.4*541.4855)
= 0.375 in
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This opening does not require reinforcement per UG-36(c)(3)(a)
UW-16(c) Weld Check
Fillet weld: tmin = lesser of 0.75 or tn or t = 0.219 in
tc(min) = lesser of 0.25 or 0.7*tmin = 0.1533 intc(actual) = 0.7*Leg = 0.7*0.3571 = 0.25 in
The fillet weld size is satisfactory.
Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e).
UG-45 Nozzle Neck Thickness Check
Wall thickness per UG-45(a): tr1 = 0.1563 in (E =1)
Wall thickness per UG-45(b)(1): tr2 = 0.5 in
Wall thickness per UG-16(b): tr3 = 0.1875 in
Standard wall pipe per UG-45(b)(4): tr4 = 0.2598 in
The greater of tr2 or tr3: tr5 = 0.5 in
The lesser of tr4 or tr5: tr6 = 0.2598 in
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Required per UG-45 is the larger of tr1 or tr6 = 0.2598 in
Available nozzle wall thickness new, tn = 0.8750*0.344 = 0.301 in
The nozzle neck thickness is adequate.
Reinforcement Calculations for MAP
The vessel wall thickness governs the MAP of this nozzle.
UG-37 Area Calculation Summary(in2)
For P = 724.61 psi @ 70 °F
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5A
weldstreq tmin
This nozzle is exempt from area
calculations per UG-36(c)(3)(a)0.1348 0.3010
Weld Failure Path Analysis Summary
The nozzle is exempt from weld strengthcalculations per UW-15(b)(2)
UW-16 Weld Sizing Summary
Weld descriptionRequired weldthroat size (in)
Actual weldthroat size (in)
Status
Nozzle to shell fillet (Leg41) 0.2408 0.2500 weld size is adequate
Calculations for internal pressure 724.61 psi @ 70 °F
Limits of reinforcement per UG-40
Parallel to the vessel wall: (Rn + tn + t )= 1.6875 in
Normal to the vessel wall outside: 2.5*(tn - Cn) + te = 0.86 in
Normal to the vessel wall inside: 2.5*(tn - Cn - C) = 0.86 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn /(Sn*E - 0.6*P)
= 724.6132*0.8435/(17100*1 - 0.6*724.6132)
= 0.0367 in
Required thickness tr from UG-37(a)
tr = P*Ro /(S*E + 0.4*P)
= 724.6132*14/(20000*1 + 0.4*724.6132)
= 0.5 in
This opening does not require reinforcement per UG-36(c)(3)(a)
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UW-16(c) Weld Check
Fillet weld: tmin = lesser of 0.75 or tn or t = 0.344 intc(min) = lesser of 0.25 or 0.7*tmin = 0.2408 in
tc(actual) = 0.7*Leg = 0.7*0.3571 = 0.25 in
The fillet weld size is satisfactory.
Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e).
UG-45 Nozzle Neck Thickness Check
Wall thickness per UG-45(a): tr1 = 0.0367 in (E =1)
Wall thickness per UG-45(b)(1): tr2 = 0.5 in
Wall thickness per UG-16(b): tr3 = 0.0625 in
Standard wall pipe per UG-45(b)(4): tr4 = 0.1348 in
The greater of tr2 or tr3: tr5 = 0.5 in
The lesser of tr4 or tr5: tr6 = 0.1348 in
Required per UG-45 is the larger of tr1 or tr6 = 0.1348 in
Available nozzle wall thickness new, tn = 0.8750*0.344 = 0.301 in
The nozzle neck thickness is adequate.
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Manhole (MH)
ASME Section VIII Division 1, 2004 Edition, A05 Addenda
tw(lower) = 0.5000 in
Leg41 = 0.4000 in
tw(upper) = 0.5000 in
Leg42 = 0.4000 inDp = 28.2362 in
te = 0.5000 in
Note: round inside edges per UG-76(c)
Located on: Cylinder #1
Liquid static head included: 0.3478 psi
Nozzle material specification: SA-106 B Smls pipe (ASME II-D p. 10, ln. 5)
Nozzle longitudinal joint efficiency: 1.00
Nozzle description: 18" Sch 40
Pad material specification: SA-516 70 (ASME II-D p. 14, ln. 20)
Pad diameter: 28.2362 in
Flange description: 18 inch 300# WN A105
Bolt Material: SA-193 B7 Bolt <= 2 1/2 (ASME II-D p. 382, ln. 33)
Flange rated MDMT: -55°F
(UCS-66(b)(1)(b))
Liquid static head on flange: 0.0432 psi
ASME B16.5 flange rating MAWP: 727 psi @ 120°F
ASME B16.5 flange rating MAP: 740 psi @ 70°F
ASME B16.5 flange hydro test: 1125 psi @ 70°F
Nozzle orientation: 180°
Local vessel minimum thickness: 0.5 in
Nozzle center line offset to datum line: 24.8032 in
End of nozzle to shell center: 26.25 in
Nozzle inside diameter, new: 16.876 in
Nozzle nominal wall thickness: 0.562 in
Nozzle corrosion allowance: 0.125 in
Projection available outside vessel, Lpr: 12.25 in
Pad is split: no
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Reinforcement Calculations for Internal Pressure
Available reinforcement per UG-37 governs the MAWP of this nozzle.
UG-37 Area Calculation Summary (in2)For P = 508.68 psi @ 120 °F
The opening is adequately reinforced
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5A
weldstreq tmin
6.0814 6.0823 0.3827 0.2847 -- 5.1181 0.2968 0.4531 0.4918
Weld Failure Path Analysis Summary (lbf)All failure paths are stronger than the applicable weld loads
Weld loadW
Weld loadW1-1
Path 1-1strength
Weld loadW2-2
Path 2-2strength
Weld loadW3-3
Path 3-3strength
114,310.72 113,992.21 318,174.41 14,034.53 460,916.88 119,596.73 330,787.69
UW-16 Weld Sizing Summary
Weld descriptionRequired weldthroat size (in)
Actual weldthroat size (in)
Status
Nozzle to pad fillet (Leg41) 0.2500 0.2800 weld size is adequate
Pad to shell fillet (Leg42) 0.1875 0.2800 weld size is adequate
Nozzle to pad groove (Upper) 0.3059 0.5000 weld size is adequate
Calculations for internal pressure 508.68 psi @ 120 °F
Fig UCS-66.2 general note (1) applies.
Nozzle impact test exemption temperature from Fig UCS-66 Curve B = -7.792 °F
Fig UCS-66.1 MDMT reduction = 56.6 °F, (coincident ratio = 0.51224)Rated MDMT is governed by UCS-66(b)(2).
Pad impact test exemption temperature from Fig UCS-66 Curve B = -7 °FFig UCS-66.1 MDMT reduction = 31.4 °F, (coincident ratio = 0.68611).
Nozzle UCS-66 governing thk: 0.4918 in
Nozzle rated MDMT: -55 °F
Pad UCS-66 governing thickness: 0.5 in
Pad rated MDMT: -38.4 °F
Limits of reinforcement per UG-40
Parallel to the vessel wall: d = 17.126 in
Normal to the vessel wall outside: 2.5*(t - C) = 0.9375 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn /(Sn*E - 0.6*P)
= 508.6829*8.563/(17100*1 - 0.6*508.6829)
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= 0.2594 in
Required thickness tr from UG-37(a)
tr = P*Ro /(S*E + 0.4*P)
= 508.6829*14/(20000*1 + 0.4*508.6829)
= 0.3525 in
Area required per UG-37(c)
Allowable stresses: Sn = 17100, Sv = 20000, Sp = 20000 psi
fr1 = lesser of 1 or Sn /Sv = 0.855fr2 = lesser of 1 or Sn /Sv = 0.855fr3 = lesser of fr2 or Sp /Sv = 0.855
fr4 = lesser of 1 or Sp /Sv = 1
A = d*tr*F + 2*tn*tr*F*(1 - fr1)
= 17.126*0.3525*1 + 2*0.437*0.3525*1*(1 - 0.855)
= 6.0814 in2
Area available from FIG. UG-37.1
A1 = larger of the following= 0.3827 in2
= d*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)
= 17.126*(1*0.375 - 1*0.3525) - 2*0.437*(1*0.375 - 1*0.3525)*(1 - 0.855)
= 0.3827 in2
= 2*(t + tn)*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)
= 2*(0.375 + 0.437)*(1*0.375 - 1*0.3525) - 2*0.437*(1*0.375 - 1*0.3525)*(1 - 0.855)
= 0.0337 in2
A2 = smaller of the following= 0.2847 in2
= 5*(tn - trn)*fr2*t
= 5*(0.437 - 0.2594)*0.855*0.375
= 0.2847 in2
= 2*(tn - trn)*(2.5*tn + te)*fr2
= 2*(0.437 - 0.2594)*(2.5*0.437 + 0.5)*0.855
= 0.4836 in2
A41 = Leg2*fr3
= 0.42*0.855
= 0.1368 in2
A42 = Leg2*fr4
= 0.42*1
= 0.16 in2
A5 = (Dp - d - 2*tn)*te*fr4
= (28.2362 - 17.126 - 2*0.437)*0.5*1
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= 5.1181 in2
Area = A1 + A2 + A41 + A42 + A5
= 0.3827 + 0.2847 + 0.1368 + 0.16 + 5.1181
= 6.0823 in2
As Area >= A the reinforcement is adequate.
UW-16(c)(2) Weld Check
Inner fillet: tmin = lesser of 0.75 or tn or te = 0.437 in
tc(min) = lesser of 0.25 or 0.7*tmin = 0.25 in
tc(actual) = 0.7*Leg = 0.7*0.4 = 0.28 in
Outer fillet: tmin = lesser of 0.75 or te or t = 0.375 in
tw(min) = 0.5*tmin = 0.1875 in
tw(actual) = 0.7*Leg = 0.7*0.4 = 0.28 in
UG-45 Nozzle Neck Thickness Check
Wall thickness per UG-45(a): tr1 = 0.3844 in (E =1)
Wall thickness per UG-45(b)(1): tr2 = 0.4775 in
Wall thickness per UG-16(b): tr3 = 0.1875 in
Standard wall pipe per UG-45(b)(4): tr4 = 0.4531 in
The greater of tr2 or tr3: tr5 = 0.4775 in
The lesser of tr4 or tr5: tr6 = 0.4531 in
Required per UG-45 is the larger of tr1 or tr6 = 0.4531 in
Available nozzle wall thickness new, tn = 0.8750*0.562 = 0.4918 in
The nozzle neck thickness is adequate.
Allowable stresses in joints UG-45(c) and UW-15(c)
Groove weld in tension: 0.74*20000 = 14800 psi
Nozzle wall in shear: 0.7*17100 = 11970 psi
Inner fillet weld in shear: 0.49*17100 = 8379 psi
Outer fillet weld in shear: 0.49*20000 = 9800 psi
Upper groove weld in tension: 0.74*20000 = 14800 psi
Strength of welded joints:
(1) Inner fillet weld in shear(π /2)*Nozzle OD*Leg*Si = (π /2)*18*0.4*8379 = 94764.26 lbf
(2) Outer fillet weld in shear(π /2)*Pad OD*Leg*So = (π /2)*28.2362*0.4*9800 = 173865.2 lbf
(3) Nozzle wall in shear
(π /2)*Mean nozzle dia*tn*Sn = (π /2)*17.563*0.437*11970 = 144309.3 lbf
(4) Groove weld in tension
(π /2)*Nozzle OD*tw*Sg = (π /2)*18*0.375*14800 = 156922.5 lbf
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(6) Upper groove weld in tension(π /2)*Nozzle OD*tw*Sg = (π /2)*18*0.5*14800 = 209230.1 lbf
Loading on welds per UG-41(b)(1)
W = (A - A1 + 2*tn*fr1*(E1*t - F*tr))*Sv
= (6.0814 - 0.3827 + 2*0.437*0.855*(1*0.375 - 1*0.3525))*20000
= 114310.7 lbf
W1-1 = (A2 + A5 + A41 + A42)*Sv
= (0.2847 + 5.1181 + 0.1368 + 0.16)*20000
= 113992.2 lbf
W2-2 = (A2 + A3 + A41 + A43 + 2*tn*t*fr1)*Sv
= (0.2847 + 0 + 0.1368 + 0 + 2*0.437*0.375*0.855)*20000
= 14034.53 lbf
W3-3 = (A2 + A3 + A5 + A41 + A42 + A43 + 2*tn*t*fr1)*Sv
= (0.2847 + 0 + 5.1181 + 0.1368 + 0.16 + 0 + 2*0.437*0.375*0.855)*20000
= 119596.7 lbf
Load for path 1-1 lesser of W or W1-1 = 113992.2 lbf
Path 1-1 through (2) & (3) = 173865.2 + 144309.3 = 318174.4 lbf
Path 1-1 is stronger than W1-1 so it is acceptable per UG-41(b)(1).
Load for path 2-2 lesser of W or W2-2 = 14034.53 lbf
Path 2-2 through (1), (4), (6) = 94764.26 + 156922.5 + 209230.1 = 460916.9 lbf
Path 2-2 is stronger than W2-2 so it is acceptable per UG-41(b)(1).
Load for path 3-3 lesser of W or W3-3 = 114310.7 lbf
Path 3-3 through (2), (4) = 173865.2 + 156922.5 = 330787.7 lbf
Path 3-3 is stronger than W so it is acceptable per UG-41(b)(2).
Check the opening per Appendix 1-7
Area required within 75 percent of the limits of reinforcement= 2/3 * A = (2/3)*6.0814 = 4.0543 in2
Area that is within 75 percent of the limits of reinforcement is:
A1 = larger of 0.0337 or
= (2*limits - d)*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)
= (2*12.8445 - 17.126)*(1*0.375 - 1*0.3525) - 2*0.437*(1*0.375 - 1*0.3525)*(1 - 0.855)
= 0.1899 in2
A5 = (Dp - d - 2*tn)*te*fr4
= (25.689 - 17.126 - 2*0.437)*0.5*1
= 3.8445 in2
Area = A1 + A2 + A3 + A41 + A42 + A43 + A5
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= 0.1899 + 0.2847 + 0 + 0.1368 + 0 + 0 + 3.8445
= 4.4559 in2
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The area placement requirements of Appendix 1-7 are satisfied.
The opening is not within the size range defined by 1-7(b)(1)(a) and (b) so it is exempt from the requirements of 1-7(b)(2),and (4).
Rn /R ratio does not exceed 0.7 so a U-2(g) analysis is not required per 1-7(b)(1)(c).
Reinforcement Calculations for MAP
Available reinforcement per UG-37 governs the MAP of this nozzle.
UG-37 Area Calculation Summary (in2)For P = 613.14 psi @ 70 °F
The opening is adequately reinforced
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5A
weldstreq tmin
7.2245 7.2255 1.2702 0.5404 -- 5.1181 0.2968 0.3281 0.4918
Weld Failure Path Analysis Summary (lbf)All failure paths are stronger than the applicable weld loads
Weld loadW
Weld loadW1-1
Path 1-1strength
Weld loadW2-2
Path 2-2strength
Weld loadW3-3
Path 3-3strength
120,547.30 119,106.21 358,131.94 23,154.20 513,224.41 128,716.41 383,095.25
UW-16 Weld Sizing Summary
Weld descriptionRequired weldthroat size (in)
Actual weldthroat size (in)
Status
Nozzle to pad fillet (Leg41) 0.2500 0.2800 weld size is adequate
Pad to shell fillet (Leg42) 0.2500 0.2800 weld size is adequate
Nozzle to pad groove (Upper) 0.3500 0.5000 weld size is adequate
Calculations for internal pressure 613.14 psi @ 70 °F
Limits of reinforcement per UG-40
Parallel to the vessel wall: d = 16.876 inNormal to the vessel wall outside: 2.5*(t - C) = 1.25 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn /(Sn*E - 0.6*P)
= 613.1401*8.438/(17100*1 - 0.6*613.1401)
= 0.3092 in
Required thickness tr from UG-37(a)
tr = P*Ro /(S*E + 0.4*P)
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= 613.1401*14/(20000*1 + 0.4*613.1401)
= 0.424 in
Area required per UG-37(c)
Allowable stresses: Sn = 17100, Sv = 20000, Sp = 20000 psi
fr1 = lesser of 1 or Sn /Sv = 0.855fr2 = lesser of 1 or Sn /Sv = 0.855
fr3
= lesser of fr2
or Sp
/Sv
= 0.855fr4 = lesser of 1 or Sp /Sv = 1
A = d*tr*F + 2*tn*tr*F*(1 - fr1)
= 16.876*0.424*1 + 2*0.562*0.424*1*(1 - 0.855)
= 7.2245 in2
Area available from FIG. UG-37.1
A1 = larger of the following= 1.2702 in2
= d*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)
= 16.876*(1*0.5 - 1*0.424) - 2*0.562*(1*0.5 - 1*0.424)*(1 - 0.855)= 1.2702 in2
= 2*(t + tn)*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)
= 2*(0.5 + 0.562)*(1*0.5 - 1*0.424) - 2*0.562*(1*0.5 - 1*0.424)*(1 - 0.855)
= 0.149 in2
A2 = smaller of the following= 0.5404 in2
= 5*(tn - trn)*fr2*t
= 5*(0.562 - 0.3092)*0.855*0.5
= 0.5404 in2
= 2*(tn - trn)*(2.5*tn + te)*fr2
= 2*(0.562 - 0.3092)*(2.5*0.562 + 0.5)*0.855
= 0.8235 in2
A41 = Leg2*fr3
= 0.42*0.855
= 0.1368 in2
A42 = Leg2*fr4
= 0.42*1
= 0.16 in2
A5 = (Dp - d - 2*tn)*te*fr4
= (28.2362 - 16.876 - 2*0.562)*0.5*1
= 5.1181 in2
Area = A1 + A2 + A41 + A42 + A5
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= 1.2702 + 0.5404 + 0.1368 + 0.16 + 5.1181
= 7.2255 in2
As Area >= A the reinforcement is adequate.
UW-16(c)(2) Weld Check
Inner fillet: tmin = lesser of 0.75 or tn or te = 0.5 in
tc(min) = lesser of 0.25 or 0.7*tmin = 0.25 in
tc(actual) = 0.7*Leg = 0.7*0.4 = 0.28 in
Outer fillet: tmin = lesser of 0.75 or te or t = 0.5 in
tw(min) = 0.5*tmin = 0.25 in
tw(actual) = 0.7*Leg = 0.7*0.4 = 0.28 in
UG-45 Nozzle Neck Thickness Check
Wall thickness per UG-45(a): tr1 = 0.3092 in (E =1)
Wall thickness per UG-45(b)(1): tr2 = 0.424 in
Wall thickness per UG-16(b): tr3 = 0.0625 in
Standard wall pipe per UG-45(b)(4): tr4 = 0.3281 in
The greater of tr2 or tr3: tr5 = 0.424 in
The lesser of tr4 or tr5: tr6 = 0.3281 in
Required per UG-45 is the larger of tr1 or tr6 = 0.3281 in
Available nozzle wall thickness new, tn = 0.8750*0.562 = 0.4918 in
The nozzle neck thickness is adequate.
Allowable stresses in joints UG-45(c) and UW-15(c)
Groove weld in tension: 0.74*20000 = 14800 psi
Nozzle wall in shear: 0.7*17100 = 11970 psi
Inner fillet weld in shear: 0.49*17100 = 8379 psi
Outer fillet weld in shear: 0.49*20000 = 9800 psi
Upper groove weld in tension: 0.74*20000 = 14800 psi
Strength of welded joints:
(1) Inner fillet weld in shear
(π /2)*Nozzle OD*Leg*Si = (π /2)*18*0.4*8379 = 94764.26 lbf
(2) Outer fillet weld in shear(π /2)*Pad OD*Leg*So = (π /2)*28.2362*0.4*9800 = 173865.2 lbf
(3) Nozzle wall in shear(π /2)*Mean nozzle dia*tn*Sn = (π /2)*17.438*0.562*11970 = 184266.8 lbf
(4) Groove weld in tension
(π /2)*Nozzle OD*tw*Sg = (π /2)*18*0.5*14800 = 209230.1 lbf
(6) Upper groove weld in tension(π /2)*Nozzle OD*tw*Sg = (π /2)*18*0.5*14800 = 209230.1 lbf
Loading on welds per UG-41(b)(1)
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W = (A - A1 + 2*tn*fr1*(E1*t - F*tr))*Sv
= (7.2245 - 1.2702 + 2*0.562*0.855*(1*0.5 - 1*0.424))*20000
= 120547.3 lbf
W1-1 = (A2 + A5 + A41 + A42)*Sv
= (0.5404 + 5.1181 + 0.1368 + 0.16)*20000
= 119106.2 lbf
W2-2 = (A2 + A3 + A41 + A43 + 2*tn*t*fr1)*Sv
= (0.5404 + 0 + 0.1368 + 0 + 2*0.562*0.5*0.855)*20000
= 23154.2 lbf
W3-3 = (A2 + A3 + A5 + A41 + A42 + A43 + 2*tn*t*fr1)*Sv
= (0.5404 + 0 + 5.1181 + 0.1368 + 0.16 + 0 + 2*0.562*0.5*0.855)*20000
= 128716.4 lbf
Load for path 1-1 lesser of W or W1-1 = 119106.2 lbf
Path 1-1 through (2) & (3) = 173865.2 + 184266.8 = 358131.9 lbf
Path 1-1 is stronger than W1-1 so it is acceptable per UG-41(b)(1).
Load for path 2-2 lesser of W or W2-2 = 23154.2 lbf
Path 2-2 through (1), (4), (6) = 94764.26 + 209230.1 + 209230.1 = 513224.4 lbf
Path 2-2 is stronger than W2-2 so it is acceptable per UG-41(b)(1).
Load for path 3-3 lesser of W or W3-3 = 120547.3 lbf
Path 3-3 through (2), (4) = 173865.2 + 209230.1 = 383095.3 lbf
Path 3-3 is stronger than W so it is acceptable per UG-41(b)(2).
Check the opening per Appendix 1-7
Area required within 75 percent of the limits of reinforcement= 2/3 * A = (2/3)*7.2245 = 4.8164 in2
Area that is within 75 percent of the limits of reinforcement is:
A1 = larger of 0.149 or
= (2*limits - d)*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)
= (2*12.657 - 16.876)*(1*0.5 - 1*0.424) - 2*0.562*(1*0.5 - 1*0.424)*(1 - 0.855)
= 0.6289 in2
A5 = (Dp - d - 2*tn)*te*fr4
= (25.314 - 16.876 - 2*0.562)*0.5*1
= 3.657 in2
Area = A1 + A2 + A3 + A41 + A42 + A43 + A5
= 0.6289 + 0.5404 + 0 + 0.1368 + 0 + 0 + 3.657
= 4.9631 in2
The area placement requirements of Appendix 1-7 are satisfied.
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The opening is not within the size range defined by 1-7(b)(1)(a) and (b) so it is exempt from the requirements of 1-7(b)(2),and (4).
Rn /R ratio does not exceed 0.7 so a U-2(g) analysis is not required per 1-7(b)(1)(c).
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PI (N7)
ASME Section VIII Division 1, 2004 Edition, A05 Addenda
tw(lower) = 0.5000 in
Leg41 = 0.3750 in
Note: round inside edges per UG-76(c)
Located on: Cylinder #1
Liquid static head included: 0 psi
Nozzle material specification: SA-106 B Smls pipe (ASME II-D p. 10, ln. 5)
Nozzle longitudinal joint efficiency: 1.00
Nozzle description: 2" Sch 160
Flange description: 2 inch 300# WN A105
Bolt Material: SA-193 B7 Bolt <= 2 1/2 (ASME II-D p. 382, ln. 33)
Flange rated MDMT: -55°F
(UCS-66(b)(1)(b))
Liquid static head on flange: 0 psi
ASME B16.5 flange rating MAWP: 727 psi @ 120°F
ASME B16.5 flange rating MAP: 740 psi @ 70°F
ASME B16.5 flange hydro test: 1125 psi @ 70°F
Nozzle orientation: 135°
Local vessel minimum thickness: 0.5 in
Nozzle center line offset to datum line: 87.9921 in
End of nozzle to shell center: 20 in
Nozzle inside diameter, new: 1.687 in
Nozzle nominal wall thickness: 0.344 in
Nozzle corrosion allowance: 0.125 in
Projection available outside vessel, Lpr: 6 in
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Reinforcement Calculations for Internal Pressure
The vessel wall thickness governs the MAWP of this nozzle.
UG-37 Area Calculation Summary(in2)
For P = 541.46 psi @ 120 °F
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5A
weldstreq tmin
This nozzle is exempt from areacalculations per UG-36(c)(3)(a)
0.2598 0.3010
Weld Failure Path Analysis Summary
The nozzle is exempt from weld strength
calculations per UW-15(b)(2)
UW-16 Weld Sizing Summary
Weld descriptionRequired weldthroat size (in)
Actual weldthroat size (in)
Status
Nozzle to shell fillet (Leg41) 0.1533 0.2625 weld size is adequate
Calculations for internal pressure 541.46 psi @ 120 °F
Fig UCS-66.2 general note (1) applies.
Nozzle is impact test exempt to -155 °F per UCS-66(b)(3) (coincident ratio = 0.12061).
Nozzle UCS-66 governing thk: 0.301 in
Nozzle rated MDMT: -155 °F
Limits of reinforcement per UG-40
Parallel to the vessel wall: d = 1.937 in
Normal to the vessel wall outside: 2.5*(tn - Cn) + te = 0.5475 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn /(Sn*E - 0.6*P)
= 541.4581*0.9685/(17100*1 - 0.6*541.4581)
= 0.0313 in
Required thickness tr from UG-37(a)
tr = P*Ro /(S*E + 0.4*P)
= 541.4581*14/(20000*1 + 0.4*541.4581)
= 0.375 in
This opening does not require reinforcement per UG-36(c)(3)(a)
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UW-16(c) Weld Check
Fillet weld: tmin = lesser of 0.75 or tn or t = 0.219 intc(min) = lesser of 0.25 or 0.7*tmin = 0.1533 in
tc(actual) = 0.7*Leg = 0.7*0.375 = 0.2625 in
The fillet weld size is satisfactory.
Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e).
UG-45 Nozzle Neck Thickness Check
Wall thickness per UG-45(a): tr1 = 0.1563 in (E =1)
Wall thickness per UG-45(b)(1): tr2 = 0.5 in
Wall thickness per UG-16(b): tr3 = 0.1875 in
Standard wall pipe per UG-45(b)(4): tr4 = 0.2598 in
The greater of tr2 or tr3: tr5 = 0.5 in
The lesser of tr4 or tr5: tr6 = 0.2598 in
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Required per UG-45 is the larger of tr1 or tr6 = 0.2598 in
Available nozzle wall thickness new, tn = 0.8750*0.344 = 0.301 in
The nozzle neck thickness is adequate.
Reinforcement Calculations for MAP
The vessel wall thickness governs the MAP of this nozzle.
UG-37 Area Calculation Summary(in2)
For P = 724.61 psi @ 70 °F
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5A
weldstreq tmin
This nozzle is exempt from area
calculations per UG-36(c)(3)(a)0.1348 0.3010
Weld Failure Path Analysis Summary
The nozzle is exempt from weld strengthcalculations per UW-15(b)(2)
UW-16 Weld Sizing Summary
Weld descriptionRequired weldthroat size (in)
Actual weldthroat size (in)
Status
Nozzle to shell fillet (Leg41) 0.2408 0.2625 weld size is adequate
Calculations for internal pressure 724.61 psi @ 70 °F
Limits of reinforcement per UG-40
Parallel to the vessel wall: (Rn + tn + t )= 1.6875 in
Normal to the vessel wall outside: 2.5*(tn - Cn) + te = 0.86 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn /(Sn*E - 0.6*P)
= 724.6132*0.8435/(17100*1 - 0.6*724.6132)
= 0.0367 in
Required thickness tr from UG-37(a)
tr = P*Ro /(S*E + 0.4*P)
= 724.6132*14/(20000*1 + 0.4*724.6132)
= 0.5 in
This opening does not require reinforcement per UG-36(c)(3)(a)
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UW-16(c) Weld Check
Fillet weld: tmin = lesser of 0.75 or tn or t = 0.344 intc(min) = lesser of 0.25 or 0.7*tmin = 0.2408 intc(actual) = 0.7*Leg = 0.7*0.375 = 0.2625 in
The fillet weld size is satisfactory.
Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e).
UG-45 Nozzle Neck Thickness Check
Wall thickness per UG-45(a): tr1 = 0.0367 in (E =1)
Wall thickness per UG-45(b)(1): tr2 = 0.5 in
Wall thickness per UG-16(b): tr3 = 0.0625 in
Standard wall pipe per UG-45(b)(4): tr4 = 0.1348 in
The greater of tr2 or tr3: tr5 = 0.5 in
The lesser of tr4 or tr5: tr6 = 0.1348 in
Required per UG-45 is the larger of tr1 or tr6 = 0.1348 in
Available nozzle wall thickness new, tn = 0.8750*0.344 = 0.301 in
The nozzle neck thickness is adequate.
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PSV (N5)
ASME Section VIII Division 1, 2004 Edition, A05 Addenda
tw(lower) = 0.5000 in
Leg41 = 0.3750 in
Note: round inside edges per UG-76(c)
Located on: Cylinder #1
Liquid static head included: 0 psi
Nozzle material specification: SA-106 B Smls pipe (ASME II-D p. 10, ln. 5)
Nozzle longitudinal joint efficiency: 1.00
Nozzle description: 1.500" XX Heavy
Flange description: 1.5 inch 300# WN A105
Bolt Material: SA-193 B7 Bolt <= 2 1/2 (ASME II-D p. 382, ln. 33)
Flange rated MDMT: -55°F
(UCS-66(b)(1)(b))
Liquid static head on flange: 0 psi
ASME B16.5 flange rating MAWP: 727 psi @ 120°F
ASME B16.5 flange rating MAP: 740 psi @ 70°F
ASME B16.5 flange hydro test: 1125 psi @ 70°F
Nozzle orientation: 315°
Local vessel minimum thickness: 0.5 in
Nozzle center line offset to datum line: 90 in
End of nozzle to shell center: 20 in
Nozzle inside diameter, new: 1.1 in
Nozzle nominal wall thickness: 0.4 in
Nozzle corrosion allowance: 0.125 in
Projection available outside vessel, Lpr: 6 in
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Reinforcement Calculations for Internal Pressure
The vessel wall thickness governs the MAWP of this nozzle.
UG-37 Area Calculation Summary(in2)
For P = 541.46 psi @ 120 °F
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5A
weldstreq tmin
This nozzle is exempt from areacalculations per UG-36(c)(3)(a)
0.2519 0.3500
Weld Failure Path Analysis Summary
The nozzle is exempt from weld strength
calculations per UW-15(b)(2)
UW-16 Weld Sizing Summary
Weld descriptionRequired weldthroat size (in)
Actual weldthroat size (in)
Status
Nozzle to shell fillet (Leg41) 0.1925 0.2625 weld size is adequate
Calculations for internal pressure 541.46 psi @ 120 °F
Fig UCS-66.2 general note (1) applies.
Nozzle is impact test exempt to -155 °F per UCS-66(b)(3) (coincident ratio = 0.06575).
Nozzle UCS-66 governing thk: 0.35 in
Nozzle rated MDMT: -155 °F
Limits of reinforcement per UG-40
Parallel to the vessel wall: d = 1.35 in
Normal to the vessel wall outside: 2.5*(tn - Cn) + te = 0.6875 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn /(Sn*E - 0.6*P)
= 541.4581*0.675/(17100*1 - 0.6*541.4581)
= 0.0218 in
Required thickness tr from UG-37(a)
tr = P*Ro /(S*E + 0.4*P)
= 541.4581*14/(20000*1 + 0.4*541.4581)
= 0.375 in
This opening does not require reinforcement per UG-36(c)(3)(a)
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UW-16(c) Weld Check
Fillet weld: tmin = lesser of 0.75 or tn or t = 0.275 intc(min) = lesser of 0.25 or 0.7*tmin = 0.1925 in
tc(actual) = 0.7*Leg = 0.7*0.375 = 0.2625 in
The fillet weld size is satisfactory.
Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e).
UG-45 Nozzle Neck Thickness Check
Wall thickness per UG-45(a): tr1 = 0.1468 in (E =1)
Wall thickness per UG-45(b)(1): tr2 = 0.5 in
Wall thickness per UG-16(b): tr3 = 0.1875 in
Standard wall pipe per UG-45(b)(4): tr4 = 0.2519 in
The greater of tr2 or tr3: tr5 = 0.5 in
The lesser of tr4 or tr5: tr6 = 0.2519 in
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Required per UG-45 is the larger of tr1 or tr6 = 0.2519 in
Available nozzle wall thickness new, tn = 0.8750*0.4 = 0.35 in
The nozzle neck thickness is adequate.
Reinforcement Calculations for MAP
The vessel wall thickness governs the MAP of this nozzle.
UG-37 Area Calculation Summary(in2)
For P = 724.61 psi @ 70 °F
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5A
weldstreq tmin
This nozzle is exempt from area
calculations per UG-36(c)(3)(a)0.1269 0.3500
Weld Failure Path Analysis Summary
The nozzle is exempt from weld strengthcalculations per UW-15(b)(2)
UW-16 Weld Sizing Summary
Weld descriptionRequired weldthroat size (in)
Actual weldthroat size (in)
Status
Nozzle to shell fillet (Leg41) 0.2500 0.2625 weld size is adequate
Calculations for internal pressure 724.61 psi @ 70 °F
Limits of reinforcement per UG-40
Parallel to the vessel wall: (Rn + tn + t )= 1.45 in
Normal to the vessel wall outside: 2.5*(tn - Cn) + te = 1 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn /(Sn*E - 0.6*P)
= 724.6132*0.55/(17100*1 - 0.6*724.6132)
= 0.0239 in
Required thickness tr from UG-37(a)
tr = P*Ro /(S*E + 0.4*P)
= 724.6132*14/(20000*1 + 0.4*724.6132)
= 0.5 in
This opening does not require reinforcement per UG-36(c)(3)(a)
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UW-16(c) Weld Check
Fillet weld: tmin = lesser of 0.75 or tn or t = 0.4 intc(min) = lesser of 0.25 or 0.7*tmin = 0.25 intc(actual) = 0.7*Leg = 0.7*0.375 = 0.2625 in
The fillet weld size is satisfactory.
Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e).
UG-45 Nozzle Neck Thickness Check
Wall thickness per UG-45(a): tr1 = 0.0239 in (E =1)
Wall thickness per UG-45(b)(1): tr2 = 0.5 in
Wall thickness per UG-16(b): tr3 = 0.0625 in
Standard wall pipe per UG-45(b)(4): tr4 = 0.1269 in
The greater of tr2 or tr3: tr5 = 0.5 in
The lesser of tr4 or tr5: tr6 = 0.1269 in
Required per UG-45 is the larger of tr1 or tr6 = 0.1269 in
Available nozzle wall thickness new, tn = 0.8750*0.4 = 0.35 in
The nozzle neck thickness is adequate.
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RD (N10)
ASME Section VIII Division 1, 2004 Edition, A05 Addenda
tw(lower) = 0.5000 in
Leg41 = 0.3571 in
Note: round inside edges per UG-76(c)
Located on: Ellipsoidal Head #1
Liquid static head included: 0 psi
Nozzle material specification: SA-106 B Smls pipe (ASME II-D p. 10, ln. 5)
Nozzle longitudinal joint efficiency: 1.00
Nozzle description: 2" Sch 160
Flange description: 2 inch 300# WN A105
Bolt Material: SA-193 B7 Bolt <= 2 1/2 (ASME II-D p. 382, ln. 33)
Flange rated MDMT: -55°F
(UCS-66(b)(1)(b))
Liquid static head on flange: 0 psi
ASME B16.5 flange rating MAWP: 727 psi @ 120°F
ASME B16.5 flange rating MAP: 740 psi @ 70°F
ASME B16.5 flange hydro test: 1125 psi @ 70°F
Nozzle orientation: 270°
Calculated as hillside: yes
Local vessel minimum thickness: 0.5 in
End of nozzle to datum line: 111.9843 in
Nozzle inside diameter, new: 1.687 in
Nozzle nominal wall thickness: 0.344 in
Nozzle corrosion allowance: 0.125 in
Opening chord length: 2.2231 in
Projection available outside vessel, Lpr: 8.4521 in
Distance to head center, R: 10.2362 in
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Reinforcement Calculations for Internal Pressure
The vessel wall thickness governs the MAWP of this nozzle.
UG-37 Area Calculation Summary(in2)
For P = 555.59 psi @ 120 °F
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5A
weldstreq tmin
This nozzle is exempt from areacalculations per UG-36(c)(3)(a)
0.2598 0.3010
Weld Failure Path Analysis Summary
The nozzle is exempt from weld strength
calculations per UW-15(b)(2)
UW-16 Weld Sizing Summary
Weld descriptionRequired weldthroat size (in)
Actual weldthroat size (in)
Status
Nozzle to shell fillet (Leg41) 0.1533 0.2500 weld size is adequate
Calculations for internal pressure 555.59 psi @ 120 °F
Fig UCS-66.2 general note (1) applies.
Nozzle is impact test exempt to -155 °F per UCS-66(b)(3) (coincident ratio = 0.12061).
Nozzle UCS-66 governing thk: 0.301 in
Nozzle rated MDMT: -155 °F
Limits of reinforcement per UG-40
Parallel to the vessel wall: d = 2.2231 in
Normal to the vessel wall outside: 2.5*(tn - Cn) + te = 0.5475 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn /(Sn*E - 0.6*P)
= 555.5916*0.9685/(17100*1 - 0.6*555.5916)
= 0.0321 in
Required thickness tr from UG-37(a)(3)
tr = P*Do*K / (2*S*E + 2*P*(K - 0.1))
= 555.5916*28*0.987934 / (2*20000*1 + 2*555.5916*(0.987934 - 0.1))= 0.375"
This opening does not require reinforcement per UG-36(c)(3)(a)
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UW-16(c) Weld Check
Fillet weld: tmin = lesser of 0.75 or tn or t = 0.219 intc(min) = lesser of 0.25 or 0.7*tmin = 0.1533 in
tc(actual) = 0.7*Leg = 0.7*0.3571 = 0.25 in
The fillet weld size is satisfactory.
Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e).
UG-45 Nozzle Neck Thickness Check
Interpretation VIII-1-83-66 has been applied.
Wall thickness per UG-45(a): tr1 = 0.1571 in (E =1)
Wall thickness per UG-45(b)(1): tr2 = 0.5 in
Wall thickness per UG-16(b): tr3 = 0.1875 in
Standard wall pipe per UG-45(b)(4): tr4 = 0.2598 in
The greater of tr2 or tr3: tr5 = 0.5 in
The lesser of tr4 or tr5: tr6 = 0.2598 in
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Required per UG-45 is the larger of tr1 or tr6 = 0.2598 in
Available nozzle wall thickness new, tn = 0.8750*0.344 = 0.301 in
The nozzle neck thickness is adequate.
Reinforcement Calculations for MAP
The vessel wall thickness governs the MAP of this nozzle.
UG-37 Area Calculation Summary(in2)
For P = 737.95 psi @ 70 °F
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5A
weldstreq tmin
This nozzle is exempt from area
calculations per UG-36(c)(3)(a)0.1348 0.3010
Weld Failure Path Analysis Summary
The nozzle is exempt from weld strengthcalculations per UW-15(b)(2)
UW-16 Weld Sizing Summary
Weld descriptionRequired weldthroat size (in)
Actual weldthroat size (in)
Status
Nozzle to shell fillet (Leg41) 0.2408 0.2500 weld size is adequate
Calculations for internal pressure 737.95 psi @ 70 °F
Limits of reinforcement per UG-40
Parallel to the vessel wall: d = 1.9402 in
Normal to the vessel wall outside: 2.5*(tn - Cn) + te = 0.86 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn /(Sn*E - 0.6*P)
= 737.9493*0.8435/(17100*1 - 0.6*737.9493)
= 0.0374 in
Required thickness tr from UG-37(a)(3)
tr = P*Do*K / (2*S*E + 2*P*(K - 0.1))
= 737.9493*28*1 / (2*20000*1 + 2*737.9493*(1 - 0.1))= 0.5"
This opening does not require reinforcement per UG-36(c)(3)(a)
UW-16(c) Weld Check
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Fillet weld: tmin = lesser of 0.75 or tn or t = 0.344 in
tc(min) = lesser of 0.25 or 0.7*tmin = 0.2408 intc(actual) = 0.7*Leg = 0.7*0.3571 = 0.25 in
The fillet weld size is satisfactory.
Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e).
UG-45 Nozzle Neck Thickness Check
Interpretation VIII-1-83-66 has been applied.
Wall thickness per UG-45(a): tr1 = 0.0374 in (E =1)
Wall thickness per UG-45(b)(1): tr2 = 0.5 in
Wall thickness per UG-16(b): tr3 = 0.0625 in
Standard wall pipe per UG-45(b)(4): tr4 = 0.1348 in
The greater of tr2 or tr3: tr5 = 0.5 in
The lesser of tr4 or tr5: tr6 = 0.1348 in
Required per UG-45 is the larger of tr1 or tr6 = 0.1348 in
Available nozzle wall thickness new, tn = 0.8750*0.344 = 0.301 in
The nozzle neck thickness is adequate.
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TI c/w Thermo well (N8)
ASME Section VIII Division 1, 2004 Edition, A05 Addenda
tw(lower) = 0.5000 in
Leg41 = 0.3571 in
Note: round inside edges per UG-76(c)
Located on: Cylinder #1
Liquid static head included: 0.3295 psi
Nozzle material specification: SA-106 B Smls pipe (ASME II-D p. 10, ln. 5)
Nozzle longitudinal joint efficiency: 1.00
Nozzle description: 2" Sch 160
Flange description: 2 inch 300# WN A105
Bolt Material: SA-193 B7 Bolt <= 2 1/2 (ASME II-D p. 382, ln. 33)
Flange rated MDMT: -55°F
(UCS-66(b)(1)(b))
Liquid static head on flange: 0.299 psi
ASME B16.5 flange rating MAWP: 727 psi @ 120°F
ASME B16.5 flange rating MAP: 740 psi @ 70°F
ASME B16.5 flange hydro test: 1125 psi @ 70°F
Nozzle orientation: 135°
Local vessel minimum thickness: 0.5 in
Nozzle center line offset to datum line: 17.7165 in
End of nozzle to shell center: 20 in
Nozzle inside diameter, new: 1.687 in
Nozzle nominal wall thickness: 0.344 in
Nozzle corrosion allowance: 0.125 in
Projection available outside vessel, Lpr: 6 in
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Reinforcement Calculations for Internal Pressure
Available reinforcement per UG-37 governs the MAWP of this nozzle.
UG-37 Area Calculation Summary (in2)For P = 370.26 psi @ 120 °F
The opening is adequately reinforced
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5A
weldstreq tmin
0.5147 0.5147 0.2205 0.1852 -- -- 0.1090 0.2598 0.3010
Weld Failure Path Analysis Summary
The nozzle is exempt from weld strengthcalculations per UW-15(b)(1)
UW-16 Weld Sizing Summary
Weld descriptionRequired weldthroat size (in)
Actual weldthroat size (in)
Status
Nozzle to shell fillet (Leg41) 0.1533 0.2500 weld size is adequate
Calculations for internal pressure 370.26 psi @ 120 °F
Fig UCS-66.2 general note (1) applies.
Nozzle is impact test exempt to -155 °F per UCS-66(b)(3) (coincident ratio = 0.12072).
Nozzle UCS-66 governing thk: 0.301 in
Nozzle rated MDMT: -155 °F
Limits of reinforcement per UG-40
Parallel to the vessel wall: d = 1.937 in
Normal to the vessel wall outside: 2.5*(tn - Cn) + te = 0.5475 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn /(Sn*E - 0.6*P)= 370.2636*0.9685/(17100*1 - 0.6*370.2636)
= 0.0212 in
Required thickness tr from UG-37(a)
tr = P*Ro /(S*E + 0.4*P)
= 370.2636*14/(20000*1 + 0.4*370.2636)
= 0.2573 in
Area required per UG-37(c)
Allowable stresses: Sn = 17100, Sv = 20000 psi
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fr1 = lesser of 1 or Sn /Sv = 0.855
fr2 = lesser of 1 or Sn /Sv = 0.855
A = d*tr*F + 2*tn*tr*F*(1 - fr1)
= 1.937*0.2573*1 + 2*0.219*0.2573*1*(1 - 0.855)
= 0.5147 in2
Area available from FIG. UG-37.1
A1 = larger of the following= 0.2205 in2
= d*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)
= 1.937*(1*0.375 - 1*0.2573) - 2*0.219*(1*0.375 - 1*0.2573)*(1 - 0.855)
= 0.2205 in2
= 2*(t + tn)*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)
= 2*(0.375 + 0.219)*(1*0.375 - 1*0.2573) - 2*0.219*(1*0.375 - 1*0.2573)*(1 - 0.855)
= 0.1324 in2
A2 = smaller of the following= 0.1852 in2
= 5*(tn - trn)*fr2*t
= 5*(0.219 - 0.0212)*0.855*0.375
= 0.3171 in2
= 5*(tn - trn)*fr2*tn
= 5*(0.219 - 0.0212)*0.855*0.219
= 0.1852 in2
A41 = Leg2
*fr2= 0.35712*0.855
= 0.109 in2
Area = A1 + A2 + A41
= 0.2205 + 0.1852 + 0.109
= 0.5147 in2
As Area >= A the reinforcement is adequate.
UW-16(c) Weld Check
Fillet weld: tmin = lesser of 0.75 or tn or t = 0.219 intc(min) = lesser of 0.25 or 0.7*tmin = 0.1533 intc(actual) = 0.7*Leg = 0.7*0.3571 = 0.25 in
The fillet weld size is satisfactory.
Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e).
UG-45 Nozzle Neck Thickness Check
Wall thickness per UG-45(a): tr1 = 0.1462 in (E =1)
Wall thickness per UG-45(b)(1): tr2 = 0.3823 in
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Wall thickness per UG-16(b): tr3 = 0.1875 in
Standard wall pipe per UG-45(b)(4): tr4 = 0.2598 in
The greater of tr2 or tr3: tr5 = 0.3823 in
The lesser of tr4 or tr5: tr6 = 0.2598 in
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Required per UG-45 is the larger of tr1 or tr6 = 0.2598 in
Available nozzle wall thickness new, tn = 0.8750*0.344 = 0.301 in
The nozzle neck thickness is adequate.
Reinforcement Calculations for MAP
Available reinforcement per UG-37 governs the MAP of this nozzle.
UG-37 Area Calculation Summary (in2)For P = 584.8 psi @ 70 °F
The opening is adequately reinforced
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5A
weldstreq tmin
0.7230 0.7230 0.1515 0.4625 -- -- 0.1090 0.1348 0.3010
Weld Failure Path Analysis Summary
The nozzle is exempt from weld strengthcalculations per UW-15(b)(1)
UW-16 Weld Sizing Summary
Weld descriptionRequired weldthroat size (in)
Actual weldthroat size (in)
Status
Nozzle to shell fillet (Leg41) 0.2408 0.2500 weld size is adequate
Calculations for internal pressure 584.8 psi @ 70 °F
Limits of reinforcement per UG-40
Parallel to the vessel wall: (Rn + tn + t )= 1.6875 in
Normal to the vessel wall outside: 2.5*(tn - Cn) + te = 0.86 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn /(Sn*E - 0.6*P)
= 584.8007*0.8435/(17100*1 - 0.6*584.8007)
= 0.0295 in
Required thickness tr from UG-37(a)
tr = P*Ro /(S*E + 0.4*P)
= 584.8007*14/(20000*1 + 0.4*584.8007)
= 0.4046 in
Area required per UG-37(c)
Allowable stresses: Sn = 17100, Sv = 20000 psi
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fr1 = lesser of 1 or Sn /Sv = 0.855fr2 = lesser of 1 or Sn /Sv = 0.855
A = d*tr*F + 2*tn*tr*F*(1 - fr1)
= 1.687*0.4046*1 + 2*0.344*0.4046*1*(1 - 0.855)
= 0.723 in2
Area available from FIG. UG-37.1
A1 = larger of the following= 0.1515 in2
= d*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)
= 1.687*(1*0.5 - 1*0.4046) - 2*0.344*(1*0.5 - 1*0.4046)*(1 - 0.855)
= 0.1514 in2
= 2*(t + tn)*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)
= 2*(0.5 + 0.344)*(1*0.5 - 1*0.4046) - 2*0.344*(1*0.5 - 1*0.4046)*(1 - 0.855)
= 0.1515 in2
A2 = smaller of the following= 0.4625 in2
= 5*(tn - trn)*fr2*t
= 5*(0.344 - 0.0295)*0.855*0.5
= 0.6722 in2
= 5*(tn - trn)*fr2*tn
= 5*(0.344 - 0.0295)*0.855*0.344
= 0.4625 in2
A41 = Leg2*fr2
= 0.35712*0.855= 0.109 in2
Area = A1 + A2 + A41
= 0.1515 + 0.4625 + 0.109
= 0.723 in2
As Area >= A the reinforcement is adequate.
UW-16(c) Weld Check
Fillet weld: tmin = lesser of 0.75 or tn or t = 0.344 in
tc(min) = lesser of 0.25 or 0.7*tmin = 0.2408 intc(actual) = 0.7*Leg = 0.7*0.3571 = 0.25 in
The fillet weld size is satisfactory.
Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e).
UG-45 Nozzle Neck Thickness Check
Wall thickness per UG-45(a): tr1 = 0.0295 in (E =1)
Wall thickness per UG-45(b)(1): tr2 = 0.4046 in
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Wall thickness per UG-16(b): tr3 = 0.0625 in
Standard wall pipe per UG-45(b)(4): tr4 = 0.1348 in
The greater of tr2 or tr3: tr5 = 0.4046 in
The lesser of tr4 or tr5: tr6 = 0.1348 in
Required per UG-45 is the larger of tr1 or tr6 = 0.1348 in
Available nozzle wall thickness new, tn = 0.8750*0.344 = 0.301 in
The nozzle neck thickness is adequate.
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Vent (N9)
ASME Section VIII Division 1, 2004 Edition, A05 Addenda
tw(lower) = 0.5000 in
Leg41 = 0.3571 in
Note: round inside edges per UG-76(c)
Located on: Ellipsoidal Head #1
Liquid static head included: 0 psi
Nozzle material specification: SA-106 B Smls pipe (ASME II-D p. 10, ln. 5)
Nozzle longitudinal joint efficiency: 1.00
Nozzle description: 2" Sch 160
Flange description: 2 inch 300# WN A105
Bolt Material: SA-193 B7 Bolt <= 2 1/2 (ASME II-D p. 382, ln. 33)
Flange rated MDMT: -55°F
(UCS-66(b)(1)(b))
Liquid static head on flange: 0 psi
ASME B16.5 flange rating MAWP: 727 psi @ 120°F
ASME B16.5 flange rating MAP: 740 psi @ 70°F
ASME B16.5 flange hydro test: 1125 psi @ 70°F
Nozzle orientation: 90°
Calculated as hillside: yes
Local vessel minimum thickness: 0.5 in
End of nozzle to datum line: 111.9843 in
Nozzle inside diameter, new: 1.687 in
Nozzle nominal wall thickness: 0.344 in
Nozzle corrosion allowance: 0.125 in
Opening chord length: 2.2231 in
Projection available outside vessel, Lpr: 8.4521 in
Distance to head center, R: 10.2362 in
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Reinforcement Calculations for Internal Pressure
The vessel wall thickness governs the MAWP of this nozzle.
UG-37 Area Calculation Summary(in2)
For P = 555.59 psi @ 120 °F
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5A
weldstreq tmin
This nozzle is exempt from areacalculations per UG-36(c)(3)(a)
0.2598 0.3010
Weld Failure Path Analysis Summary
The nozzle is exempt from weld strength
calculations per UW-15(b)(2)
UW-16 Weld Sizing Summary
Weld descriptionRequired weldthroat size (in)
Actual weldthroat size (in)
Status
Nozzle to shell fillet (Leg41) 0.1533 0.2500 weld size is adequate
Calculations for internal pressure 555.59 psi @ 120 °F
Fig UCS-66.2 general note (1) applies.
Nozzle is impact test exempt to -155 °F per UCS-66(b)(3) (coincident ratio = 0.12061).
Nozzle UCS-66 governing thk: 0.301 in
Nozzle rated MDMT: -155 °F
Limits of reinforcement per UG-40
Parallel to the vessel wall: d = 2.2231 in
Normal to the vessel wall outside: 2.5*(tn - Cn) + te = 0.5475 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn /(Sn*E - 0.6*P)
= 555.5916*0.9685/(17100*1 - 0.6*555.5916)
= 0.0321 in
Required thickness tr from UG-37(a)(3)
tr = P*Do*K / (2*S*E + 2*P*(K - 0.1))
= 555.5916*28*0.987934 / (2*20000*1 + 2*555.5916*(0.987934 - 0.1))= 0.375"
This opening does not require reinforcement per UG-36(c)(3)(a)
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UW-16(c) Weld Check
Fillet weld: tmin = lesser of 0.75 or tn or t = 0.219 intc(min) = lesser of 0.25 or 0.7*tmin = 0.1533 in
tc(actual) = 0.7*Leg = 0.7*0.3571 = 0.25 in
The fillet weld size is satisfactory.
Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e).
UG-45 Nozzle Neck Thickness Check
Interpretation VIII-1-83-66 has been applied.
Wall thickness per UG-45(a): tr1 = 0.1571 in (E =1)
Wall thickness per UG-45(b)(1): tr2 = 0.5 in
Wall thickness per UG-16(b): tr3 = 0.1875 in
Standard wall pipe per UG-45(b)(4): tr4 = 0.2598 in
The greater of tr2 or tr3: tr5 = 0.5 in
The lesser of tr4 or tr5: tr6 = 0.2598 in
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Required per UG-45 is the larger of tr1 or tr6 = 0.2598 in
Available nozzle wall thickness new, tn = 0.8750*0.344 = 0.301 in
The nozzle neck thickness is adequate.
Reinforcement Calculations for MAP
The vessel wall thickness governs the MAP of this nozzle.
UG-37 Area Calculation Summary(in2)
For P = 737.95 psi @ 70 °F
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5A
weldstreq tmin
This nozzle is exempt from area
calculations per UG-36(c)(3)(a)0.1348 0.3010
Weld Failure Path Analysis Summary
The nozzle is exempt from weld strengthcalculations per UW-15(b)(2)
UW-16 Weld Sizing Summary
Weld descriptionRequired weldthroat size (in)
Actual weldthroat size (in)
Status
Nozzle to shell fillet (Leg41) 0.2408 0.2500 weld size is adequate
Calculations for internal pressure 737.95 psi @ 70 °F
Limits of reinforcement per UG-40
Parallel to the vessel wall: d = 1.9402 in
Normal to the vessel wall outside: 2.5*(tn - Cn) + te = 0.86 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn /(Sn*E - 0.6*P)
= 737.9493*0.8435/(17100*1 - 0.6*737.9493)
= 0.0374 in
Required thickness tr from UG-37(a)(3)
tr = P*Do*K / (2*S*E + 2*P*(K - 0.1))
= 737.9493*28*1 / (2*20000*1 + 2*737.9493*(1 - 0.1))= 0.5"
This opening does not require reinforcement per UG-36(c)(3)(a)
UW-16(c) Weld Check
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Fillet weld: tmin = lesser of 0.75 or tn or t = 0.344 in
tc(min) = lesser of 0.25 or 0.7*tmin = 0.2408 intc(actual) = 0.7*Leg = 0.7*0.3571 = 0.25 in
The fillet weld size is satisfactory.
Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e).
UG-45 Nozzle Neck Thickness Check
Interpretation VIII-1-83-66 has been applied.
Wall thickness per UG-45(a): tr1 = 0.0374 in (E =1)
Wall thickness per UG-45(b)(1): tr2 = 0.5 in
Wall thickness per UG-16(b): tr3 = 0.0625 in
Standard wall pipe per UG-45(b)(4): tr4 = 0.1348 in
The greater of tr2 or tr3: tr5 = 0.5 in
The lesser of tr4 or tr5: tr6 = 0.1348 in
Required per UG-45 is the larger of tr1 or tr6 = 0.1348 in
Available nozzle wall thickness new, tn = 0.8750*0.344 = 0.301 in
The nozzle neck thickness is adequate.
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Skirt Base Ring
Base configuration: single base plate without gussetsFoundation compressive strength: 750 psiConcrete ultimate 28-day strength: 3,000.00 psi
Anchor bolt material: A 57Anchor bolt allowable stress, Sb: 20,000.00 psi
Bolt circle, BC: 31.53543 inAnchor bolt corrosion allowance: 0 in
Anchor bolt clearance: 0.375 in
Base plate material: A 36Base plate allowable stress, Sp: 16,600.00 psi
Base plate inner diameter, D i: 23.58268 inBase plate outer diameter, Do: 35.07874 in
Base plate thickness, tb: 0.472441 inInitial bolt preload: 50 % (10,000.00 psi)
Number of bolts, N: 8Bolt size and type: 0.75 inch series 8 threadedBolt root area (corroded), Ab: 0.302 in2
Diameter of anchor bolt holes, db: 1.125 in
Load Vesselcondition
Base M(lb-ft)
W(lb)
Requiredbolt area(in2)
trBase(in)
Foundation
bearingstress(psi)
Weight operating, corroded 1,909.6 3,045.1 0.0000 0.3677 58.94
Weight operating, new 1,946.4 3,527.9 0.0000 0.3710 60.00
Weight empty, corroded 1,909.6 2,330.7 0.0036 0.3634 57.57
Weight empty, new 1,946.4 2,828.0 0.0008 0.3668 58.66
Anchor bolt load (operating, corroded + Weight)
P = -W / N + 48 * M /(N*BC)= -3,045.061 / 8 + 48 * 1,909.567 /(8*31.53543)= -17.31416 lb
The anchor bolts are satisfactory (no net uplift on anchor bolt)
Foundation bearing stress (operating, corroded + Weight)
Ac = pi*(Do2 - Di
2)/4 - N*pi*db2 /4
= π*(35.078742 - 23.582682)/4 - 8*π*1.1252 /4
= 521.7009 in2
Ic = π*(Do4 - Di
4)/64
= π*(35.078744 - 23.582684)/64= 59,144.3945 in4
fc = N*Ab*Preload/Ac + W/Ac + 6*M*Do /Ic= 8*0.302*10,000.00/521.7009 + 3,045.061/521.7009 + 6*1,909.567*35.07874/59,144.39= 58.94 psi
As fc <= 750 psi the base plate width is satisfactory.
Base plate required thickness (operating, corroded + Weight)
tr = (3*fc*L2 / Sp)
0.5
= (3*58.94227*3.5629922 / 16,600.00)0.5
= 0.3677349 in
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The base plate thickness is satisfactory.
Anchor bolt load (operating, new + Weight)
P = -W / N + 48 * M /(N*BC)= -3,527.902 / 8 + 48 * 1,946.378 /(8*31.53543)
= -70.66563 lb
The anchor bolts are satisfactory (no net uplift on anchor bolt)
Foundation bearing stress (operating, new + Weight)
Ac = pi*(Do2 - Di
2)/4 - N*pi*db2 /4
= π*(35.078742 - 23.582682)/4 - 8*π*1.1252 /4= 521.7009 in2
Ic = π*(Do4 - Di
4)/64= π*(35.078744 - 23.582684)/64
= 59,144.3945 in4
fc = N*Ab*Preload/Ac + W/Ac + 6*M*Do /Ic= 8*0.302*10,000.00/521.7009 + 3,527.902/521.7009 + 6*1,946.378*35.07874/59,144.39
= 60.00 psi
As fc <= 750 psi the base plate width is satisfactory.
Base plate required thickness (operating, new + Weight)
tr = (3*fc*L2 / Sp)
0.5
= (3*59.99878*3.5629922 / 16,600.00)0.5
= 0.371016 in
The base plate thickness is satisfactory.
Anchor bolt load (empty, corroded + Weight)
P = -W / N + 48 * M /(N*BC)= -2,330.703 / 8 + 48 * 1,909.567 /(8*31.53543)
= 71.98061 lb
Required area per bolt = P / Sb = 3.599031E-03 in2
The area provided (0.302 in2) by the specified anchor bolt is adequate.
Foundation bearing stress (empty, corroded + Weight)
Ac = pi*(Do2 - Di
2)/4 - N*pi*db2 /4
=π
*(35.078742
- 23.582682
)/4 - 8*π
*1.1252
/4= 521.7009 in2
Ic = π*(Do4 - Di
4)/64= π*(35.078744 - 23.582684)/64
= 59,144.3945 in4
fc = N*Ab*Preload/Ac + W/Ac + 6*M*Do /Ic= 8*0.302*10,000.00/521.7009 + 2,330.703/521.7009 + 6*1,909.567*35.07874/59,144.39= 57.57 psi
As fc <= 750 psi the base plate width is satisfactory.
Base plate required thickness (empty, corroded + Weight)
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tr = (3*fc*L2 / Sp)
0.5
= (3*57.57299*3.5629922 / 16,600.00)0.5
= 0.3634384 in
The base plate thickness is satisfactory.
Anchor bolt load (empty, new + Weight)
P = -W / N + 48 * M /(N*BC)
= -2,827.975 / 8 + 48 * 1,946.378 /(8*31.53543)= 16.82525 lb
Required area per bolt = P / Sb = 8.412623E-04 in2
The area provided (0.302 in2) by the specified anchor bolt is adequate.
Foundation bearing stress (empty, new + Weight)
Ac = pi*(Do2 - Di
2)/4 - N*pi*db2 /4
= π*(35.078742 - 23.582682)/4 - 8*π*1.1252 /4
= 521.7009 in2
Ic = π*(Do4 - Di4)/64= π*(35.078744 - 23.582684)/64= 59,144.3945 in4
fc = N*Ab*Preload/Ac + W/Ac + 6*M*Do /Ic= 8*0.302*10,000.00/521.7009 + 2,827.975/521.7009 + 6*1,946.378*35.07874/59,144.39= 58.66 psi
As fc <= 750 psi the base plate width is satisfactory.
Base plate required thickness (empty, new + Weight)
tr
= (3*fc
*L2 / Sp
)0.5
= (3*58.65715*3.5629922 / 16,600.00)0.5
= 0.3668444 in
The base plate thickness is satisfactory.
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Support Skirt
Material:SA-36 (ASME II-D p. 6,ln. 18)
Design temperature, operating: 96.8 °F
Inner diameter at top, new: 27.48031 inInner diameter at bottom, new: 27.48031 in
Overall length: 39.37008 inCorrosion allowance inside: 0.1181102 in
Corrosion allowance outside: 0 in
Weld joint efficiency top: 0.55Weld joint efficiency bottom: 0.8
Nominal thickness, new: 0.2362205 inSkirt is attached to: Ellipsoidal Head #2
Skirt attachment offset: 3.3524in down from the topseam
Skirt design thickness, largest of the following + corrosion = 0.1238 in
The governing condition is due to weight, compressive stress at the base, operating & corroded.
The skirt thickness of 0.2362 in is adequate.
LoadingVessel
Condition(Stress)
GoverningSkirt
Location
Temperature(°F)
AllowableStress(psi)
CalculatedStress/E
(psi)
Requiredthickness
(in)
Weight operating, corroded (+) top 96.80 16,600.00 76.23 0.0005
Weight operating, corroded (-) bottom 96.80 12,494.53 606.89 0.0057
Weight operating, new (+) top 96.80 16,600.00 12.55 0.0002
Weight operating, new (-) bottom 96.80 15,156.86 331.99 0.0052
Weight empty, corroded (+) top 70.00 16,600.00 201.98 0.0014
Weight empty, corroded (-) bottom 70.00 12,494.53 537.72 0.0051
Weight empty, new (+) top 70.00 16,600.00 74.43 0.0011
Weight empty, new (-) bottom 70.00 15,156.86 297.97 0.0046
Loading due to weight, operating & corroded
Windward side (tensile)
Required thickness, tensile stress at base:t = -W/(π*D*St*E) + 48*M/(π*D2*St*E)
= -2,975.061/(π*27.83464*16,600.00*0.8) + 48*1,909.567/(π*27.834642*16,600.00*0.8)= 0.0003 in
Required thickness, tensile stress at the top:t = -Wt /(π*Dt*St*E) + 48*Mt /(π*Dt
2*St*E)
= -2,859.994/(π*27.83464*16,600.00*0.55) + 48*1,909.567/(π*27.834642*16,600.00*0.55)= 0.0005 in
Leeward side (compressive)
Required thickness, compressive stress at base:t = W/(π*D*Sc*Ec) + 48*M/(π*D2*Sc*Ec)
= 2,975.061/(π*27.83464*12,494.53*1) + 48*1,909.567/(π*27.834642*12,494.53*1)= 0.0057 in
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Required thickness, compressive stress at the top:t = Wt /(π*Dt*Sc*Ec) + 48*Mt /(π*Dt
2*Sc*Ec)
= 2,859.994/(π*27.83464*12,494.53*1) + 48*1,909.567/(π*27.834642*12,494.53*1)= 0.0056 in
Loading due to weight, operating & new
Windward side (tensile)
Required thickness, tensile stress at base:t = -W/(π*D*St*E) + 48*M/(π*D2*St*E)
= -3,457.902/(π*27.71654*15,156.86*1) + 48*1,946.378/(π*27.716542*15,156.86*1)= 0.0001 in
Required thickness, tensile stress at the top:
t = -Wt /(π*Dt*St*E) + 48*Mt /(π*Dt2*St*E)
= -3,228.744/(π*27.71654*16,600.00*0.55) + 48*1,946.378/(π*27.716542*16,600.00*0.55)= 0.0002 in
Leeward side (compressive)
Required thickness, compressive stress at base:
t = W/(π*D*Sc*Ec) + 48*M/(π*D2*Sc*Ec)= 3,457.902/(π*27.71654*15,156.86*1) + 48*1,946.378/(π*27.716542*15,156.86*1)= 0.0052 in
Required thickness, compressive stress at the top:
t = Wt /(π*Dt*Sc*Ec) + 48*Mt /(π*Dt2*Sc*Ec)
= 3,228.744/(π*27.71654*15,156.86*1) + 48*1,946.378/(π*27.716542*15,156.86*1)
= 0.0050 in
Loading due to weight, empty & corroded
Windward side (tensile)
Required thickness, tensile stress at base:t = -W/(π*D*St*E) + 48*M/(π*D2*St*E)
= -2,260.703/(π*27.83464*16,600.00*0.8) + 48*1,909.567/(π*27.834642*16,600.00*0.8)= 0.0009 in
Required thickness, tensile stress at the top:t = -Wt /(π*Dt*St*E) + 48*Mt /(π*Dt
2*St*E)
= -2,145.636/(π*27.83464*16,600.00*0.55) + 48*1,909.567/(π*27.834642*16,600.00*0.55)= 0.0014 in
Leeward side (compressive)
Required thickness, compressive stress at base:t = W/(π*D*Sc*Ec) + 48*M/(π*D2*Sc*Ec)
= 2,260.703/(π*27.83464*12,494.53*1) + 48*1,909.567/(π*27.834642*12,494.53*1)= 0.0051 in
Required thickness, compressive stress at the top:t = Wt /(π*Dt*Sc*Ec) + 48*Mt /(π*Dt
2*Sc*Ec)
= 2,145.636/(π*27.83464*12,494.53*1) + 48*1,909.567/(π*27.834642*12,494.53*1)= 0.0050 in
Loading due to weight, empty & new
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Windward side (tensile)
Required thickness, tensile stress at base:t = -W/(π*D*St*E) + 48*M/(π*D2*St*E)= -2,757.975/(π*27.71654*16,600.00*0.8) + 48*1,946.378/(π*27.716542*16,600.00*0.8)
= 0.0005 in
Required thickness, tensile stress at the top:t = -Wt /(π*Dt*St*E) + 48*Mt /(π*Dt
2*St*E)
= -2,528.817/(π*27.71654*16,600.00*0.55) + 48*1,946.378/(π*27.716542*16,600.00*0.55)
= 0.0011 in
Leeward side (compressive)
Required thickness, compressive stress at base:t = W/(π*D*Sc*Ec) + 48*M/(π*D2*Sc*Ec)
= 2,757.975/(π*27.71654*15,156.86*1) + 48*1,946.378/(π*27.716542*15,156.86*1)= 0.0046 in
Required thickness, compressive stress at the top:t = Wt /(π*Dt*Sc*Ec) + 48*Mt /(π*Dt
2*Sc*Ec)
= 2,528.817/(π*27.71654*15,156.86*1) + 48*1,946.378/(π*27.716542*15,156.86*1)= 0.0045 in
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Lifting Lug
Geometry Inputs
Attached To Ellipsoidal Head #1
Orientation Longitudinal
Length of Lug, L 5.5118"
Height of Lug, B 4.7244"
Thickness of Lug, t 0.7874"
Hole Diameter, d 1.5748"
Load eccentricity, a1 0.0000"
Distance from Load to shell or pad, a2 2.5591"
Weld size, tw 0.3150"
Width of Pad, Bp 6.4961"
Length of Pad, Lp 7.0866"
Pad Thickness, tp 0.5000"
Pad weld size, twp 0.3150"
Load angle normal to vessel, 45.0000 °
Angular Position 0.00°
Load angle from vertical, φ 9.6220 °
Intermediate Values
Load factor 1.5000
Vessel Weight (new, incl. Load Factor), W 4279 lb
Lug Weight (new), Wlug 12 lb
Allowable stress, tensile, σ t
20000psi
Allowable stress, shear, σ s
13500
psi
Allowable stress, bearing, σp
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30000psi
Allowable stress, bending, σ b
22000
psi
Allowable stress, weld shear, τ allowable
13500psi
Summary Values
Required Lift pin diameter, dreqd 0.1859"
Required Lug thickness, treqd 0.0155"
Lug Stress Ratio, σ ratio 0.02
Weld Shear Stress Ratio, τ ratio 0.05
Lug design Acceptable
Lift Forces
Fr = force on vessel at lug
Fr = [W / cos(φ 1)] * (1 - x1 / (x1 + x2))
=(4279.282) / cos(9.6220) * (1 - 20.540/ (20.540+ 4.172))
= 733 lbfwhere 'x1' is the distance between this lug and the center of gravity
'x2' is the distance between the second lift lug and the center of
gravity
Lug Pin Diameter - Shear stress
dreqd = (2*Fr / (π *σ s))0.5
= (2*732.7986 / (π *13500.0))0.5 = 0.1859"
dreqd
/ d= 0.1859 / 1.5748 = 0.12 Acceptable
σ = Fr / A= Fr / (2*(0.25*π *d2))
=732.7986 / (2*(0.25*π *1.57482))
=188.1101psi
σ / σ s= 188.11 / 13500.00 = 0.01 Acceptable
Lug Thickness - Tensile stress
treqd = Fr / ((L-d)*σ t)
=732.7986 / ((5.5118 -
1.5748)*20000.0)= 0.0093"
treqd / t
= 0.0093 / 0.7874 = 0.01 Acceptable
σ = Fr / A= Fr / ((L - d)*t)
=732.7986 / ((5.5118 -1.5748)*0.7874)
=236.3862psi
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σ / σ t = 236.39 / 20000.00 = 0.01 Acceptable
Lug Thickness - Bearing stress
treqd = Fv / (d*σ p)
=732.7986 /
(1.5748*30000.0)= 0.0155"
treqd / t = 0.0155 / 0.7874 =0.02 Acceptable
σ = Fv / Abearing
= Fv / (d*(t))
=732.7986 / (1.5748*(0.7874))
=590.9655psi
σ / σ p = 590.97 / 30000.00 = 0.02 Acceptable
Lug Plate Stress
Lug stress tensile + bending during lift:
σ ratio = Ften / (Aten*σ t) + Mbend / (Zbend*σ b) ≤ 1.0= (Fr * cos(α ) ) / (t * L * σ t) + (6 * abs(Fr * sin(α ) * Hght - Fr * cos(α ) * a1) ) / (t * L
2 * σ b) ≤ 1.0
=733*cos(45.0) / (0.7874*5.5118*20000.0) + 6*abs(733*sin(45.0)*2.5591 - 733*cos(45.0)*0.0000) /
(0.7874*5.51182*22000.0)= 0.02 Acceptable
Weld Stress
Weld stress, tensile, bending and shear during lift:
Shear stress at lift angle 45.00°; lift force = 732.7986 lbfAweld = (0.707)*h*2*(L + t)
= (0.707)*0.3150*2*(5.5118 + 0.7874)= 2.8054in²
τ t = Fr * cos(α ) / Aweld
= 733 * cos(45.0) / 2.8054= 184.7046
psi
τ b = M * c / I= 3 * (Fr * sin(α ) * Hght - Fr * cos(α ) * a1) / (0.707 * h * L * (3*t + L))
= 3 * abs(733 * sin(45.0) * 2.5591 - 733 * cos(45.0) * 0.0000) / (9.6642)= 411.6273psi
τ s = Fr * sin(α ) / Aweld
= 733 * sin(45.0) / 2.8054 = 184.7046psi
τ ratio = sqr( (τ t + τ b)2 + τ s
2 ) / τ allowable ≤ 1.0= sqr ( (184.7046 + 411.6273)2 + (184.7046)2 ) / 13500.00 = 0.05 Acceptable
Pad Weld Stress, tensile, bending and shear during lift:Shear stress at lift angle 45.00°; lift force = 732.7986 lbf
Aweld = (0.707)*hp*2*(Lp + Bp)
= (0.707)*0.3150*2*(7.0866 + 6.4961)= 6.0491
in²
τ t = Fr * cos(α ) / Aweld
= 733 * cos(45.0) / 6.0491
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30000psi
Allowable stress, bending, σ b
22000
psi
Allowable stress, weld shear, τ allowable
13500psi
Summary Values
Required Lift pin diameter, dreqd 0.4125"
Required Lug thickness, treqd 0.0764"
Lug Stress Ratio, σ ratio 0.10
Weld Shear Stress Ratio, τ ratio 0.23
Lug design Acceptable
Lift Forces
Fr = force on vessel at lug
Fr = [W / cos(φ 1)] * (1 - x1 / (x1 + x2))
=(4279.282) / cos(9.6220) * (1 - 4.172/ (4.172 +20.540))
= 3608 lbfwhere 'x1' is the distance between this lug and the center of gravity
'x2' is the distance between the second lift lug and the center of
gravity
Lug Pin Diameter - Shear stress
dreqd = (2*Fr / (π *σ s))0.5
= (2*3607.5435 / (π *13500.0))0.5 = 0.4125"
dreqd
/ d= 0.4125 / 1.5748 = 0.26 Acceptable
σ = Fr / A= Fr / (2*(0.25*π *d2))
=3607.5435 / (2*(0.25*π *1.57482))
=926.0601psi
σ / σ s= 926.06 / 13500.00 = 0.07 Acceptable
Lug Thickness - Tensile stress
treqd = Fr / ((L-d)*σ t)
=3607.5435 / ((5.5118 -
1.5748)*20000.0)= 0.0458"
treqd / t
= 0.0458 / 0.7874 = 0.06 Acceptable
σ = Fr / A= Fr / ((L - d)*t)
=3607.5435 / ((5.5118 -1.5748)*0.7874)
=1163.7213psi
8/16/2019 Vertical Scrubber
http://slidepdf.com/reader/full/vertical-scrubber 105/106
σ / σ t = 1163.72 / 20000.00 = 0.06 Acceptable
Lug Thickness - Bearing stress
treqd = Fv / (d*σ p)
=3607.5435 /
(1.5748*30000.0)= 0.0764"
treqd / t = 0.0764 / 0.7874 =0.10 Acceptable
σ = Fv / Abearing
= Fv / (d*(t))
=3607.5435 / (1.5748*(0.7874))
=2909.3035psi
σ / σ p = 2909.30 / 30000.00 = 0.10 Acceptable
Lug Plate Stress
Lug stress tensile + bending during lift:
σ ratio = Ften / (Aten*σ t) + Mbend / (Zbend*σ b) ≤ 1.0= (Fr * cos(α ) ) / (t * L * σ t) + (6 * abs(Fr * sin(α ) * Hght - Fr * cos(α ) * a1) ) / (t * L
2 * σ b) ≤ 1.0
=3608*cos(45.0) / (0.7874*5.5118*20000.0) + 6*abs(3608*sin(45.0)*2.5591 - 3608*cos(45.0)*0.0000) /
(0.7874*5.51182*22000.0)= 0.10 Acceptable
Weld Stress
Weld stress, tensile, bending and shear during lift:
Shear stress at lift angle 45.00°; lift force = 3607.5435 lbfAweld = (0.707)*h*2*(L + t)
= (0.707)*0.3150*2*(5.5118 + 0.7874) = 2.8054 in²
τ t = Fr * cos(α ) / Aweld
= 3608 * cos(45.0) / 2.8054 = 909.2946 psi
τ b = M * c / I= 3 * (Fr * sin(α ) * Hght - Fr * cos(α ) * a1) / (0.707 * h * L * (3*t + L))
= 3 * abs(3608 * sin(45.0) * 2.5591 - 3608 * cos(45.0) * 0.0000) / (9.6642)= 2026.4279 psi
τ s = Fr * sin(α ) / Aweld
= 3608 * sin(45.0) / 2.8054 = 909.2946 psi
τ ratio = sqr( (τ t + τ b)2 + τ s
2 ) / τ allowable ≤ 1.0
= sqr ( (909.2946 + 2026.4279)2
+ (909.2946)2
) / 13500.00 = 0.23 Acceptable
Pad Weld Stress, tensile, bending and shear during lift:
Shear stress at lift angle 45.00°; lift force = 3607.5435 lbfAweld = (0.707)*hp*2*(Lp + Bp)
= (0.707)*0.3150*2*(7.0866 + 6.4961)= 6.0491in²
τ t = Fr * cos(α ) / Aweld
= 3608 * cos(45.0) / 6.0491= 421.7018
psi
τ b = M * c / I
= 3 * (Fr * sin(α ) * Hght - Fr * cos(α ) * a1) / (0.707 * h * Lp * (3*Wp + Lp))
8/16/2019 Vertical Scrubber
http://slidepdf.com/reader/full/vertical-scrubber 106/106
= 3 * abs(3608 * sin(45.0) * 3.0591 - 3608 * cos(45.0) * 0.0000) / (41.9358)= 558.2396psi
τ s = Fr * sin(α ) / Aweld
= 3608 * sin(45.0) / 6.0491= 421.7018
psi
τ ratio = sqr( (τ t + τ b)2 + τ s
2 ) / τ allowable ≤ 1.0= sqr ( (421.7018 + 558.2396)2 + (421.7018)2 ) / 13500.00 = 0.08 Acceptable
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