• Shenzhen Wofly Technology Co., Ltd.
    Dariof Fassini
    All perfect. Quality is 4.5 on 5 but quality to price ratio is excellent.
  • Shenzhen Wofly Technology Co., Ltd.
    Jasper Mokkink
    I 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.
Contact Person : Catlin Zeng
Phone Number : 0086-13430639757
WhatsApp : +8613430639757

Two Stage Industrial Gas Pressure Regulator , Safety Relief Valve With Gauges

Place of Origin Guangdong, China (Mainland)
Brand Name AFK
Certification CE
Model Number R31
Minimum Order Quantity 10 - 49 Pieces
Price Negotiable
Packaging Details white box + export carton
Supply Ability 3000 Piece/Pieces per Day

Contact me for free samples and coupons.

WhatsApp:0086 18588475571

Wechat: 0086 18588475571

Skype: sales10@aixton.com

If you have any concern, we provide 24-hour online help.

Product Details
Material 316L Screw Thread Requirement Thread
Input Pressure 500 3000psi Type Two-stage
Suitable Gas Oxygen/lpg/air/propane/Acetylene/Argon/nitrogen Application According To Requirements Of Clients
Color Silvery White Outlet Pressure Range 0~250psi
Warranty 1 Year Weight 1.4 Kg
High Light

stainless steel pressure relief valve


flow control valve

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Product Description

 two stage 316L industrial gas pressure regulator for lp gas butane propane with gauges



R31 Serie stainless steel pressure reducers, double-stage diaphragm pressure reducing construction, stable output pressure, applied to high pure gas, standard gas, corrosive gas and so on 


Design Features:


l Five holes on the body

l two-stage decompression structure

l Metal-to-metal diaphragm seal

l Body thread:  1/4” NPT(F)

l Easy to clean inside

l Filter  inside 

l Panel mounting and wall mounting available

l Optional outlet: needle valve, diaphragm valve  




l Maximum inlet pressure: 3000, 500psig

l Output pressure:0~25, 0~50, 0~100, 0~250psig

l Safe testing pressure: 1.5 times maximum inlet pressure

l Working temperature: -40℉~+165℉(-40℃~+74℃)

l Leakage rate: 2×10-8 atm.cc/sec 

l CV  value=0.06


Typical Application:


l Laboratory

l Gas laser

l Gas bus-bar

l Petrochemical industry

l Testing equipment




l Body: 316L, Brass

l Bonnet: 316L, Brass

l Diaphragm: 316L

l Strainer: 316L(10μm)

l Seat: PCTFE, PTFE, Vespel

l Spring: 316L

l Stem: 316L



Our services:


1.R&Q (Design according to client's requirements )

2.Professional mold manufacturer .Sample order & small quantity order is ok.

 3.Competitive price with high quality

4.We will keep online every work day .

5.We will reply your email and fox within 24 hours .

6.You may call and make touch with us anytime , if you have question on our products .


packing details:


1.  Inner packing: opp bag, then carton box for each product

2. Outer packing: export standard carton, Foam outside protecting the goods against damage
3. Usually we ship your order by sea or by air...
4. We do our best to ship your order within 1 week after receiving your payment
5. We'll tell you the tracking number once your order has been sent
6. We accept T/T Bank transfer, L/C, Western Union, Moneygram, Paypal

Two Stage Industrial Gas Pressure Regulator , Safety Relief Valve With Gauges 0


Ordering Information: 
 Two Stage Industrial Gas Pressure Regulator , Safety Relief Valve With Gauges 1
Item Body Material  Body Hole Inlet pressure  Outlet pressure  Gauge Inlet connection Outlet connection Optional
R31 L:ss316L M D:3000PSI G:0-125psi G:Mpa 00:1/4NPT F 00:1/4"NPT F P:panel mount
  B:brass Q F:500PSI I:0-75psi P:psi/bar  01:1/4"NPT M 01:1/4"NPT M R:attached safety relief valve
        K:0-25psi W:no gauge 23:CGA330 10:1/8O.D. N:attached needle valve
        L:0-15psi   24:CGA350 11:1/4O.D. D:attached diaphragm valve
        Q:30"Hg Vac-30psig   27:CGA580 12:3/8O.D.  
        S:30"hg Vac-60psig   28:CGA660 15:6mmO.D.  
        T:30"hg Vac-100psi   30:CGA590 16:8mmO.D.  
        U:30"Hg Vac-200psi   52:G5/8"-RH(F) 74:M8*1-RH(M)  
 Once you send the inquiry, pls send order code e.g.:R31-L-M-D-G-P-00-00-P.  Or pls send us following information so that we select asccurate quotation: 
1.Media (sevice as)? co2 or?
2.atual inlet pressure and outlet pressure? 
3.Flow rate?
4.Inlet connection and out connection? 
5.Material or ss316?