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Excess Flow Valves, Bleed Valves and Purge ValvesEV Series, RB Series, RP Series
FK-IC-GV-08-EN-151119
www.fitokgroup.com
FITOK GroupFITOK GmbH (Headquarter)Sprendlinger Landstr. 115, 63069 Offenbach am Main, GermanyTel.: +49 69 8900 4498 Fax: +49 69 8900 4495
FITOK, Inc.13843 North Promenade Blvd., Suite 750, Stafford, Texas 77477, USATel.: +1 281 888 0077 Fax: +1 281 582 4051
FITOK Incorporated1-4F, Block C, Zone E, Yingtailong lndustrial Park, Dalang Street, Longhua District, Shenzhen, 518109, ChinaTel.: +86 755 2803 2500 Fax: +86 755 2803 2619
FITOK Middle East Oil Equipment Trading LLC208-209, Makateb Tower, Airport Road, P.O.Box 185412, Deira, Dubai, UAETel.: +971 4 2959 853 Fax: +971 4 2959 854
Contents
Bleed Valves
RB Series
Purge Valves
RP Series
Excess Flow Valves
01
05
07
EV Series
Excess Flow Valves, Bleed Valves and Purge Valves 1
Features
◎
◎
◎
◎
◎
◎
Leak-tight performance testing for every valve with
nitrogen at the maximum working pressure
Compact design for convenient installation
Working pressure up to: 6000 psig (414 bar)
Working temperature: -10F to 400 F (-23 C to 204 C)
Variety of end connections
Stainless steel construction
° ° ° °
Excess Flow Valves
Introduction
If downstream line ruptures, the excess flow valve can stop uncontrolled release of system media. When the system is
functioning normally, the working element remains in the open position. If the excess flow occurs downstream, the working
element quickly moves to the tripped position to stop bleeding. When system pressure reaches balance through the bleed vent,
the spring resets the working element to the open position automatically. The flow which goes through the bleed vent should
be lower than one percent of the flow rate in the trip range.
Temperature Ranges for Different Seal Materials
EV Series
-40 to 250 (-40 to 121)
-50 to 300 (-45 to 148)
Kalrez
Ethylene Propylene
Buna N
O-ring Material Temperature Ranges o oF ( C)
Neoprene
Fluorocarbon FKM
-40 to 250 (-40 to 121)
-10 to 400 (-23 to 204)
-10 to 527 (-23 to 275)
End Connection: tube fitting, thread or face sealed
◎
◎
Easy installation
Improved system reliability
Spring Drive to Brake◎
◎
Easy operation
Enabled to work in any
direction and improve
the safety of system
Working Element
◎
◎
◎
Improved capability and reliability
High flow capability
Nuisance tripping eliminated
All Metal Seat◎
◎
Enhanced durability
No maintenance needed
Bleed Vent◎
◎
Eliminate complicated
by-pass mechanism
Spring resets the element
automatically
Connections Type and Size
Inlet Outlet
BasicOrderingNumber
Dimension, in.
(mm)
Standard Materials of Construction
Flow Data at 70 (20 )o oF C
Water Flow
200
100
300400
600800
1000
2000
30004000
810
20
3040
80100
200
300400
60
100 200 300 400 600 800 10001200
3000 4000 6000 8000 10000 20000 30000
Open
Tripped
Trip
Range
Air Flow (std L/min)
lnle
t Pre
ssu
re (
bar)
lnle
t Pre
ssu
re (
psi
g)
Air Flow (std ft 3/min)
Air Flow (std L/min)
200
100
300400
600800
1000
2000
30004000
810
20
3040
80100
200
300400
60
80 100 200 300 400 600 800
3000 4000 6000 800010000 20000
Open
Tripped
Trip
Range
lnle
t Pre
ssu
re (
psi
g)
lnle
t Pre
ssu
re (
bar)
Air Flow (std ft 3/min)
Air Flow (std L/min)
200
100
300400
600800
1000
2000
30004000
6040 80 100 200 300 400
810
20
3040
80100
200
300400
60
2000 3000 4000 6000 800010000
Open
Trip
Tripped
Range
lnle
t P
ress
ure
(p
sig
)
lnle
t P
ress
ure
(b
ar)
Air Flow (std ft 3/min)
PTFE/D1710
Fluorocarbon FKM
302 SS/A313
6061 Al/B491
316 SS/A479
4 Spring
Mark Ring
Inlet Body
2
5
3
Component
1
Material Grade/ASTM Specification
Seal Ring
O-ring
6
7
316 SS/A479
316 SS/A479Outlet Body
Working Element
2 Excess Flow Valves, Bleed Valves and Purge Valves Excess Flow Valves, Bleed Valves and Purge Valves 3
1
2
3
4
5
6
7
Dimensions
1. FITOK means FITOK double ferrule tube fittings.
2. Sizes and types listed are standard. Other sizes and types are available upon request.
3. Dimensions are shown with FITOK nuts finger-tightened. All dimensions are for reference only and are subject to change.
For dimensions not shown above, please contact the authorized representative or FITOK Group.
A
CB
2.85(72.4)
2.73(69.3)
2.12(53.8)
2.80(71.1)
1
11/16
1
2.56(65.0)
2.30(58.4)
2.36(59.9)
2.17(55.1)
2.55(64.8)
1.87(47.5)
2.96(75.2)
2.70(68.6)
2.43(61.7)
2.75(69.9)
CB
11/16
2.97(75.4)
2.43(61.7)
A
Pressure Rating
at 37 C(100 F)
psig(bar)
° °
3.03(77.0)
1.79(45.5)
3.03(77.0)
2.46(62.5)
2.13(54.1)
EV□□-FL4-4-
EV□□
EV□□
EV□□
EV□□-NS8-FL8-8-
EV□□-NS6-FL6-6-
EV□□-NS4-FL4-4-
EV□□-NS8-8-
EV□□-NS6-6-
EV□□-NS4-4-
EV□□-NS2-4-
EV□□-FNS8-8-
EV□□-FNS6-6-
EV□□-FNS4-4-
EV□□-FNS2-4-
EV□□-ML12-8-
EV□□-ML10-6-
EV□□-ML8-6-
EV□□-ML6-4-
EV□□-FL8-8-
EV□□-FL6-6-
1/4 " FITOK
3/8" FITOK
1/2 FITOK"
6 mm FITOK
8 mm FITOK
10 mm FITOK
12 mm FITOK
3/8" FITOK
1/4" FITOK (17.46) (17.46)
1(25.4)
1(25.4)
11/1611/16(17.46) (17.46)
(25.4) (25.4)
11/1611/16(17.46) (17.46)
1 1(25.4) (25.4)
1 1/161 1/16(26.99) (26.99)
11/1611/16(17.46) (17.46)
1 1(25.4) (25.4)
11/1611/16(17.46) (17.46)
1 1(25.4) (25.4)
11/1611/16(17.46) (17.46)
1(25.4)
1(25.4)
1/8 Male NPT
6 mm FITOK
8 mm FITOK
10 mm FITOK
12 mm FITOK
1/2" FITOK
3/8" FITOK
1/4" FITOK
-NS4-FNS4-4-
-NS6-FNS6-6-
-NS8-FNS8-8-
1/2" FITOK
1 1/161 1/16(26.99) (26.99)
6000(414)
6000(414)
6000(414)
5300(365)
4900(337)
6000(414)
6000(414)
6000(414)
5300(365)
4900(337)
Series
4
6
8
4
6
8
4
6
8
4
6
8
4
6
8
4
6
8
0.52 to 0.77 (14.7 21.9)to
1.09 1.34 (31.0 37.8)to to
1.50 2.00 (42.3 56.3)to to
4
6
8
0.5
1.1
1.1
Trip Range3Std ft /min (L/min)
CvSeries
4 Series 6 Series
8 Series
1/8 Female NPT
1/4 Female NPT
3/8 Female NPT
1/2 Female NPT
5300(365)
1/2 Female NPT
1/4 Male NPT
3/8 Male NPT
3/8 Male NPT
1/4 Male NPT
3/8 Male NPT
1/4 Male NPT
1/8 Male NPT
1/8 Female NPT
1/4 Female NPT
3/8 Female NPT
1/4 Male NPT
3/8 Male NPT
1/2 Female NPT
3/8 Female NPT
1/4 Female NPT
1/2 Male NPT 1/2 Male NPT
1/2 Male NPT
1/2 Male NPT
1. Standard thread pitch for metric threads are as follows:
M10 and below: 1 mm
M12 to M24: 1.5 mm
M27 and above: 2 mm
Standard thread pitch should be ignored in the ordering number, others
should be specified.
2. Cleaning and Packaging: FC-01: Standard cleaning and packaging for general industrial procedures. FC-02: Special cleaning and packaging for wetted system components to ensure compliance with product cleanliness requirement as stated in ASTM G93 Level C.
RT
FRT
FRP
BP
FMS
MS
Male BSPT
Female BSPT
Female BSPP(for RP)
Male BSPP(for RG)
Female Metric Thread (for RP-M)Male Metric Thread (for RG-M)
NS Male NPT
FNS Female NPT
MLMetric Tube Fitting
FLFractional TubeFitting
Same as Inlet
Specified in thesame way asthe inlet typeand size
1/8" 21/4" 4
3/8 or 6 mm" 6
1/2
" or 8 mm8
10 mm10
3/4 or 12 mm" 12
NeopreneBuna N
Ethylenepropylene
FluorocarbonFKM
Kalrez
NB
E
Z
Body Material
S1
S4
321 SS
304 SS
316 SSSS
6L
4L
316L SS
304L SS
904L 904L SS
EV
Seal Material
Inlet TypeSeries Inlet Size SeriesCleaning and
Packaging
F2
FC-01
FC-02
OutletType
OutletSize
NO
NACE MR0175S
SpecialApplication
EVSS - FL6 - ML8 - 6Z - SF2
Features
◎
◎
◎
◎
◎
◎
◎
Compact design for easy installation
Chrome-plated stem and tip to extend cycle life
Working pressure up to: 10000 psig (690 bar)
Working temperature: -65F to 850 F (-54 C to 454 C)
Variety of end connections
Stainless steel, carbon steel and alloy 400 available
Leak-tight performance testing for every valve with
nitrogen at 6000 psig
° ° ° °
Pressure vs. Temperature
Pre
ssu
re (
psi
g)
Temperature ( )°C
Temperature ( F)°
Bleed Valves RB Series
Contact the authorized representative or for curve graph of other materials.FITOK Group
Bleed valves can be used on instrument devices such as
or gauge valves to vent signal line pressure to atmosphere before removal of an
instrument or to assist in calibration.
multi-valve manifolds
Introduction
Alloy 400 Body
Steel Body
316 SS Body
Pre
ssu
re (
ba
r)
Standard Materials of Construction
200100-65 300 400 500 600 7004500
93
6000
7500
9000
-54 37 148 204 260 315 371
800
426
414
900
48210500
310
517
621
724
Type 2Type 1
Alloy 400
Valve Body Material Grade/ASTM Specification
Chrome-plated 316 SS/A276
316 SS Carbon Steel
1018/A108316 /A479SS
Stem
Body
Component
2
Vent tube3
1 Alloy 400/B164
Alloy 400/B164
Alloy 400/B164316 ASS/ 276316 /A276 SS
1. Lubricant is nickel antiseize, hydrocarbon carrier.
2. Contact the authorized representative or FITOK Group for other materials.
Chrome-plated 316 SS/A276
2
1
4 Excess Flow Valves, Bleed Valves and Purge Valves Excess Flow Valves, Bleed Valves and Purge Valves 5
3
2
1
Part Number Description
Note: "Part Number Description" is used for composition rules of FITOK product model,
Not suitable for specific product part number selection, not random combinations.
If in doubt, please contact FITOK group or authorized agent.
6
8
4
Features
◎
◎
◎
◎
◎
◎
Compact design for easy installation
Bonnet crimped to valve body to prevent accidental disassembly
Working pressure up to: 4000 psig (276 bar)
Working temperature: -65F to 600 F (-54 C to 315 C)
316 stainless steel, brass and carbon steel materials available
Leak-tight performance testing for every valve with nitrogen at
the maximum working pressure
° ° ° °
Pressure vs. Temperature
Pre
ssu
re (
psi
g)
Temperature ( )°C
Temperature ( F)°
Purge Valves RP Series
Contact the authorized representative or for curve graph of other materials.FITOK Group
Purge valves are manual bleed, vent or drain valves. The cap is used to release system pressure. One-quarter turn with a wrench
from finger-tight obtains leaktight closure during initial installation. Tightening with a wrench ensures closure to the rated
pressure with subsequent installations.
Introduction
Steel Body
Brass Body
316 SS Body
Pre
ssu
re (
ba
r)
316 SS/A276
12L4/A108Chromium-plated
316 SS/A276
Brass C36000/B16
316 SS/A276
316 SS/A276
316 SS Brass Steel
12L4/A108Chromium-plated
Brass C36000/B16Brass C37700/B283
Valve Body Material Grade/ASTM Specification
316 SS/A182316 SS/A479
Poppet (Ball)
Cap
Body
Component
Standard Materials of Construction
1.
2. Contact the authorized representative or FITOK Group for other materials.
Lubricant: molybdenum disulfide-based and silicone-based.
1000
2000
3000
4000
4500
010050-65 150 200 250 300 350 400 450 500 550 600
37-54 10 65 93 121 148 176 204 232 260 287 315
03469103138172207
241276310
302 SS/A313Spring
Type L Type TL Type TA Type C
2
3
1
1 2 1 1
6 Excess Flow Valves, Bleed Valves and Purge Valves Excess Flow Valves, Bleed Valves and Purge Valves 7
Sizes and types listed are standard. Other sizes and types are available upon
request. All dimensions are for reference only and are subject to change.
For dimensions not shown above, please contact the authorized representative
or FITOK Group.
Dimensions
These bleed valves don't have a cap thread seal,
so open the valve slowly and direct the vent hole
away from the operator. These valves contain no
packing, so some fluid leakage will occur when
the valves are opened.
Caution
A
B Hex
C Hex
Type 2
C Hex
B Hex
A
Type 1
B
Dimension, in. (mm)
A ( )Close C
-RT8
-RT6
-RT4
-NS4
-NS6
-NS8
RB□□
RB□□
RB□□
RB□□
RB□□
RB□□
-RT8-L
-RT6-L
-RT4-L
-NS4-L
-NS6-L
-NS8-L
RB□□
RB□□
RB□□
RB□□
RB□□
RB□□
Type
Type 1
Type 2
1/4 Male NPT
3/8 Male NPT
1/2 Male NPT
1/4 Male BSPT
3/8 Male BSPT
1/2 Male BSPT
1/4 Male NPT
3/8 Male NPT
1/2 Male NPT
1/4 Male BSPT
3/8 Male BSPT
1/2 Male BSPT
BasicOrderingNumber
Inlet Type and
Size
5/8(15.9)
1.31(33.4)
7/8(22.2)
1.46( )37.1
5/8(15.9)
1.31(33.4)
7/8(22.2)
1.46( )37.1
7/16(11.1)1.57
(40.0)5/8
(15.9)
1.74(44.2)
7/8(22.2)
5/8(15.9)
1.57(40.0)
1.74(44.2)
7/8(22.2)
RB
8
6
4
2
Inlet SizeInlet TypeSeriesBody
Material
1/2"
3/8 "
1/4"
1/8"
SpecialApplication
Cleaning andPackaging
FC-01
FC-02
NO
NACEMR 0175 S F2
HandleOutlet
Type 1
Type 2L
NO
Stainless Steel Handle(Only For Type )2
SH
321 SS
304L SS
304 SS
316L SS
316 SS
Brass
RT Male BSPT
NS Male NPT
S1
4L
S4
6L
SS
B
RBSS NS4 L SH SF2 - - - -
Cleaning and Packaging: FC-01: Standard cleaning and packaging for general industrial procedures. FC-02: Special cleaning and packaging for wetted system components to ensure
compliance with product cleanliness requirement as stated in ASTM G93 Level C.
Carbon Steel
Alloy R-405
CS
M
Part Number Description
Note: "Part Number Description" is used for composition rules of FITOK product model,
Not suitable for specific product part number selection, not random combinations.
If in doubt, please contact FITOK group or authorized agent.
D Hex
C Hex
Valve End
Models and Dimensions
These purge valves don't have a cap
thread seal, so open the valve slowly
and direct the vent hole away from
the operator. These valves contain no
packing, so some fluid leakage will
occur when the valves are opened.
Caution:
1. FITOK means FITOK double ferrule tube fittings.
2. Dimensions are shown with FITOK nuts finger - tightened. All dimensions are
for reference only and are subject to change.
3. Sizes and types listed are standard. Other sizes and types are available upon
request, refer to the ordering information.
Type TL
Valve End
D Hex
C Hex
Type TA
Valve end
C HexD Hex
Type C
Type LA
B
1
2
A
B B
1
1
AB
B
2
Valve End
D Hex
C Hex
21
3
A
B B
B
DCAmax B
5/8(15.9)
2.05(52.1)
0.75(19.1)
(12.7)1.96
(49.8)0.69
(17.5)
13/16(20.6)
1.45(36.8)
1.75(44.4)
2.02(51.3)
0.73(18.6)
13/16(20.6)
2.20(56.0)
0.88(22.4)
0.55(14.0)
0.69(17.5)
1.96(49.8)
2.10(53.4)
2.20(55.9)
0.77(19.6)
7/8(22.2)
1.83(46.5)
0.78(19.8)
1 1/16(26.9)
2.02(51.3)
0.97(24.6)
3/4(19.1)
1.76(44.7)
0.72(18.3)
9/16(14.3)
0.56(14.2)
1.84(46.8)
11/16(17.5)
0.56(14.2)
1.89(48.0)
7/8(22.2)
0.75(19.1)
2.11(53.6)
11/16(17.5)
1.24(31.6)
1.52(38.6)
13/16(20.6)
1.42(36.1)
1.61(40.9)
13/16(20.6)
1.41(36.0)
1.60(40.6)
5/8(15.9)
14.95(29.9)
1.48(37.7)
5/8(15.9)
1.20(30.5)
1.49(37.8)
1.42(36.1)
1.56(39.6)
1.17(29.7)
1.05(26.7)
1.54(39.2)
11/16(17.5)
1.17(29.7)
1.68(42.6)
Dimension, in. (mm)
-FL6
-FL4
-NS8
-ML8
-FL8
-ML6
-ML10
-ML12
-FNS6
-FNS8
-FNS4
-NS4
-NS6
-NS8
-ML10
-FL8
-ML12
-ML6
-ML8
-FL6
-FNS6
-FNS8
-FNS4
-NS4
-NS6
-FL4
3/8" FITOK
1/4" FITOK
1/2 Male NPT
8 mm FITOK
6 mm FITOK
10 mm FITOK
12 mm FITOK
3/8 Female NPT
1/2 Female NPT
1/4 Female NPT
1/4 Male NPT
3/8 Male NPT
1/2 Male NPT
10 mm FITOK
12 mm FITOK
6 mm FITOK
8 mm FITOK
3/8" FITOK
3/8 Female NPT
1/2 Female NPT
1/4 Female NPT
1/4 Male NPT
3/8 Male NPT
1/4" FITOK
1/2" FITOK
1/2" FITOK
0.87(22.0)
1.06(26.9)
1.41(35.8)
1/2(12.7)
1.06(27.0)
1.41(35.8)
1/2(12.7)
1.66(42.2)
1.75(44.4)
1.75(44.4)
11/16(17.5)
13/16(20.6)
1(25.4)
1/2(12.7)
5/8(15.9)
□□-TLRP□□-TARP□□-C
RP
P□□-LR
1/2
BasicOrderingNumber
Connection Type and Size
1. St
an
dard
th
read
pit
ch f
or
metr
ic t
hre
ad
s are
as
follo
ws:
M
10 a
nd
belo
w: 1 m
m
M
12 t
o M
24: 1.5
mm
M
27 a
nd
ab
ove
: 2 m
m
St
an
dard
th
read
pit
ch s
ho
uld
be ig
no
red
in
th
e o
rderi
ng
nu
mb
er,
oth
ers
sho
uld
be sp
eci
fied
.
2. C
lean
ing
an
d P
ack
ag
ing:
FC
-01: St
an
dard
cle
an
ing
an
d p
ack
ag
ing
fo
r g
en
era
l in
du
stri
al p
roce
du
res.
FC
-02: Sp
eci
al cl
ean
ing
an
d p
ack
ag
ing
fo
r w
ett
ed
sys
tem
co
mp
on
en
ts t
o
p
rod
uct
cle
an
lin
ess
req
uir
em
en
t as
state
d in
AST
M G
93 L
eve
l C
. en
sure
co
mp
lian
ce w
ith
NO
NA
CE
MR
0175
S
Sp
eci
al
Ap
plica
tio
n
F2
FC-0
1
FC-0
2
Cle
an
ing
an
dPack
ag
ing
L
Typ
e
TA
TL
Stra
igh
t
C
An
gle
Tee
Cro
ss
In-lin
e T
ee
Carb
on
St
eel
CS
321 S
SS1
304L
SS4L
304 S
SS4
316L
SS6L
1"
or
16 m
m
14 m
m o
rM
14 x
1.5
3/4
" o
r 12 m
m
10 m
m
1/ 2
" o
r 8 m
m
3/8
" o
r 6 m
m
1/4
"
16
14
12
108642
1/8
"
Bra
ssB
RP
Seri
es
316 S
SSS
Bo
dy
Mate
rial
En
d
Co
nn
ect
ion
2 T
yp
e
En
d C
on
nect
ion
1 S
ize
En
d C
on
nect
ion
1 T
yp
e
Speci
fied
in
th
e s
am
e w
ay
as
the e
nd
co
nn
ect
ion
1 t
ype
an
d s
ize
RT
FRT
FRP
BP
FMS
MS
Male
BSP
T
Fem
ale
BSP
T
Fem
ale
BSP
P(f
or
RP)
Male
BSP
P
(fo
r R
G)
Fem
ale
(f
or
RP-M
)
Metr
ic
Th
read
Male
(fo
r R
G)
Metr
ic
Th
read
-M
NS
Male
NPT
FNS
Fem
ale
NPT
ML
Metr
ic T
ub
e
Fitt
ing
FLFr
act
ion
al Tu
be
Fitt
ing
En
d
Co
nn
ect
ion
2 S
ize
En
d
Co
nn
ect
ion
3 T
yp
e
En
d
Co
nn
ect
ion
3 S
ize
Speci
fied
in
th
e s
am
e w
ay
as
the e
nd
co
nn
ect
ion
1 t
ype
an
d s
ize
Sam
e a
s co
nn
ect
ion
1Sa
me a
s co
nn
ect
ion
1
904L
904L
SS
RPSS
CFL
8M
L10
FL8
SF2
-
-
-
-
-
8 Excess Flow Valves, Bleed Valves and Purge Valves Excess Flow Valves, Bleed Valves and Purge Valves 9
Part
Nu
mb
er
Desc
rip
tio
n
No
te: "Part
Nu
mb
er
Desc
rip
tio
n" is
use
d f
or
com
po
siti
on
ru
les
of
FITO
K p
rod
uct
mo
del,
N
ot
suit
ab
le f
or
speci
fic
pro
du
ct p
art
nu
mb
er
sele
ctio
n, n
ot
ran
do
m c
om
bin
ati
on
s.
If
in
do
ub
t, p
lease
co
nta
ct F
ITO
K g
rou
p o
r au
tho
rize
d a
gen
t.
0.59(15.0)
0.71(18.0)
0.87(22.0)