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Dariof FassiniAll perfect. Quality is 4.5 on 5 but quality to price ratio is excellent.
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Jasper MokkinkI have had an great experience ordering from Wolfy! The communication was always quick and clear. Adding parts to your order after you made your payment is also accepted by Wolfy. They are also willing to hold your order for a little bit if you need time to decide what additional parts you would like to add. I ordered compression fittings.
SS 316L Safety Relief Back Valve For Petrochemical Industry And Laboratory

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xBody Thread | 1/4"NPT Female | Maximum Inlet Pressure | 250 Psig |
---|---|---|---|
Structure | Diaphragm-sensed Single-stage | Proof Pressure | 1.5 Times Of Maximum Rated Presure |
Working Temperature | -40° F ~+165° F(-40°C+74°C) | Leakage Rate | 2*10-8 Atm Cc/sec He |
Cv | 0.08 | Body Material | 316L |
Seat | PTFE, PCTFE | Diaphragm | 316L |
Port | SHENZHEN | ||
High Light | back pressure control valve,backflow pressure regulator |
R71 Low Pressure Back Pressure valve.
1) Stainless Steel diaphragm, accuracy pressure control, applied to adjust upstream pressure.
2) Applicable to high purity gas, standard gas, corrosive gas, liquid and so on.
Operating Parameters
|
Max. adjust pressure
|
300PSI
|
adjustment pressure
|
0-25, 0-50, 0-100, 0-250psi
|
|
Safety test pressure
|
1.5times max. inlet pressure
|
|
Applicable temperature
|
-40℉to 466 ℉, -40℃ to 230℃
|
|
Leakage rate
|
2X10-8 atm cc/sec/he
|
|
Cv value
|
0.08
|
|
|
Body
|
ss316L, brass
|
Bonnet
|
ss316L, brass
|
|
Diaphragm
|
ss316L, C276
|
|
Seat
|
PCTFE, PTFE, Vespel
|
|
Spring
|
ss316L
|
|
Stem
|
ss316
|
Series
|
Body material
|
Ports
|
Adjustment pressure
|
Inlet connection
|
Outlet connection
|
Options
|
RW71
|
L
|
A
|
G
|
00
|
00
|
P
|
|
L:316L
|
A
|
F:0-300psi
|
00:1/4"NPT F
|
00:1/4"NPT F
|
P:panel mount
|
|
B:brass
|
B
|
G:0-250psi
|
01: 1/4"NPT M
|
01: 1/4"NPT M
|
|
|
|
|
I:0-100psi
|
02:3/8"NPT F
|
02:3/8"NPT F
|
|
|
|
|
K:0-50psi
|
10:1/8"OD
|
10:1/8"OD
|
|
|
|
|
L:0-25psi
|
11:1/4"OD
|
11:1/4"OD
|
|
|
|
|
|
12:3/8"OD
|
12:3/8"OD
|
|
For inle and outlet connection, it can be customized as your request
|
Pls inform us order code e.g.:R71-L-A-F-00-00, or pls inform us following information:
1.What type of fluid is used?
2. What is inlet pressure?
3. Do you need gauge or not?
4.What type of inlet and outlet connection?
5.What materials do you need?

