• 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

Diaphragm Stainless Steel Pressure Regulator Suitable For Oxygen Nitrogen Argon

Place of Origin Guang dong,China
Brand Name AFK
Certification CE
Model Number R31
Minimum Order Quantity 1-99 pieces
Price Negotiable
Packaging Details Export packing
Delivery Time 5-8 days
Payment Terms L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability 35000 pieces per week

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Product Details
Proof Pressure 1.5 Times Of Maximum Rated Presure Body Materia 316L, Brass
Outlet Pressure Range 0~25, 0~50, 0~100, 0~250 Psig Working Temperature -40° F ~+165° F(-40°C+74°C)
Structure Diaphragm Product Name R31
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flow control valve


gas cylinder regulator

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Product Description

Stainless Steel Dual Stage Pressure Regulator Suitable for Oxygen Nitrogen Argon


R31 Series stainless steel pressure regulator , two-stage diaphragm pressure reducing construction, stable output pressure, applied to high pure gas, standard gas, corrosive gas and so on.


Material List
Tenchnical Data
316L, Brass
Max inlet pressure
500, 3000 psig
316L, Brass
Outlet pressure
0~25, 0~50, 0~100, 0~250psig
Proof pressure
1.5 times of maximum rated pressure
Filter mesh
316L (10μm)
Working temperature
Valve seat
Leakage rate
2*10-8 atm cc/sec He
Spring loaded
Valve disc regulation
Body Thread
1/4" NPT ( F )


Packaging & Delivery

Selling Units:
Single item
Single package size:
17X17X17 cm
Single gross weight:
2.5 kg
Package Type:
Export packing
Lead Time :


1 - 1

2 - 50

51 - 100


Est. Time(days)




To be negotiated

Design Feature:


Single-stage pressure reducer

Maternal and diaphragm use hard seal form

Body NPT:inlet and outlet interface 1/4''NPT(F)

The internal structure easy to purge

Can set filters

Can use a panel Intallation

Inlet form:Needle valve, membrane valve


Typical Applications:



Gas Chromatography

Gas laser

Gas bus-bar

petro-chemical industry

Test equipment

Our Service

Diaphragm Stainless Steel Pressure Regulator Suitable For Oxygen Nitrogen Argon 0

Pre-Sales Service

* Inquiry and consulting support.

* Sample testing support.

* View our Factory.

After-Sales Service

* Training how to instal the machine, training how to use the machine.

* Engineers available to service machinery overseas.