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STRENGTH CALCULATIONSheet 01
Rev. 00
Equip. BLOW DOWN PIPING SES\001\14
STRENGTH CALCULATION
EQUIPMENT : BLOW DOWN PIPING
CLIENT : NASH ENGINEERING FZCO
ENGINEERING : SUPER ENGINEERING SERVICES
DESIGN & CONSTRUCTION CODE : ASME B31.1, 2012 EDITION
MANUFACTURER : SUPER ENGINEERING SERVICES
DUBAI
REV.NO. DESCRIPTION PREPARED CHECKED APPROVED
AKS PANDIAN UDKSES-CAL-168-001 14.05.14
SUPER ENGINEERING SERVICES MFR'S
SERIAL No.
PREPARED CHECKED APPROVED DOCUMENT NO. DATE
STRENGTH CALCULATIONSheet 02
Rev. 00
Equip. BLOW DOWN PIPING SES\001\14
Index
S.No. Description Sheet No.
01 Cover Sheet 01
02 Index 02
03 Revision Status - Drawing 03
04 Revision Status - STRENGTH CALCULATION sheet 04
05 List of Standards/Codes 05
06 Design Data 06
07 Hydrostatic Test Pressure 07
08 Material Constructions 08
09 Allowable Stress 09
10 Radiographic Examinations 10
11 Heat Treatment 11
PIPING CALCULATIONS
12 Pipe thickness calculation 12 to 14
REV.NO. DESCRIPTION PREPARED CHECKED APPROVED
AKS PANDIAN UDKSES-CAL-168-001 14.05.14
PREPARED CHECKED APPROVED DOCUMENT NO. DATE
SUPER ENGINEERING SERVICES MFR'S
SERIAL No.
STRENGTH CALCULATIONSheet 03
Rev. 00
Equip. BLOW DOWN PIPING SES\001\14
STATUS OF CALCULATION DUE TO REVISION IN DRAWING
Drawing No. Reason For Revision Prepared Checked
REV.NO. DESCRIPTION PREPARED CHECKED APPROVED
SES-CAL-168-001 14.05.14
DOCUMENT NO. DATE
SUPER ENGINEERING SERVICES MFR'S SERIAL
No.
S.No
Rev.
Page Of Calculation
Pages Affected
Approved
STRENGTH CALCULATIONSheet 04
Rev. 00
Equip. BLOW DOWN PIPING SES\001\14
REVISION STATUS FOR STRENGTH CALCULATIONS
Sheet REV. No. Sheet REV. No. Sheet REV. No.
No. 0 1 2 3 4 No. 0 1 2 3 4 No. 0 1 2 3 4
1 P
2 P
3 P
4 P
5 P
6 P
7 P
8 P
9 P
10 P
11 P
12 P
13 P
14 P
Rev. No. Description PREPARED CHECKED APPOVED
SES-CAL-168-001 14.05.14
DOCUMENT NO. DATE
SUPER ENGINEERING
SERVICES MFR'S SERIAL No.
STRENGTH CALCULATIONSheet 1
Rev. 00
Vessel HEATER TREATER N-484
Pipe thickness calculation - As per API 12K - 5.1.1
S.No. DESCRIPTION Units DATA
01 Item Return Pipe
02 Drg. No. CPSF-21-V-102 E
03 Item No. 2
04 Material specification SA 106 GR.B
05 P = Internal design pressure bar(g) 6.200 89.924 psig
06 Design temperature ° C 85 185 F
07 mm 219.100 8.626 in
08 Nominal thickness mm 12.700 0.500 in
09 mm 11.112 0.438 in
10 S = Max. allowable stress as per 5.3 bar(g) 1378.9 20000 psig
11 mm 1.500 0.059 in
12 y = coefficient when T is less than D/6 0.4
13
Minimum required thickness
mm 2.483 0.098 in
14 mm 11.112 0.438 in
15 Hence Satisfactory
16
Maximum Internal working pressure
bar(g) 125.4 1818.7 psig
As per table-2 - Max. Working Pressure bar(g) 146.169 2120 psig
17 Operating Temperature ° C 85 185 F
° C 121 250 F
Hence Satisfactory
API-12K-0003 10.06.14GV PANDIAN UDK
PREPARED CHECKED APPROVED DOCUMENT NO. DATE
MFR'S SERIAL NO.
D = Outside diameter of pipe
tm = Minimum thickness available
C = Additional thickness (For corrosion, thread depth)
tm = Minimum thickness available
Minimum available is grater than minimum required
Maximum allowable design temperature as per 5.1.2
Vessel operating temperature is less than the max. allowable design temperature
t r=PD
2(S+PY )+C
P=2S( tm−C )
D−2Y ( tm−C )
