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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: AFK
  • Model Number: R31
  • MOQ: 1
  • Material: 316L, brass
  • Feature: double-single
  • Applicable gas: pure gas, standard gas, Corrosive gas
  • Maximum Inlet Pressure: 500,3000psig
  • outlet pressure: 0~25, 0~50, 0~50,0~250,0~500psig
  • inlet connection: CGA320, CGA330, CGA350, CGA580, CGA590,CGA660

Packaging & Delivery

Packaging Details Export packing

Technical Parameter:


Maximum Inlet Pressure                       500,3000psig
Outlet Pressure Ranges  0~25, 0~50, 0~50,0~250,0~500psig   
Safety test pressure1.5 times maximum inlet pressure   

Operating Temperature

-40°F to +165°F / -40°c to 74°c

Leakage Rate Against Atmosphere

2*10-8atm cc/sec he
Cv value0.06




 Body                              316L.Brass                                     
Bonnet316L. Brass 
Strainer316L(10 μm)
SeatPCTFE,PTEE, Vespel
Plunger valve core316L


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


Ordering information:



 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 select model: 
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?




About us:


Experience –Shenzhen Wofly has been working in gas equipments for more than 10 years and our equipment is present on various continents. 

Quality – Shenzhen Wofly products are made of best quality materials.

Innovation - Our experts and engineers are constantly following the latest developmental trends

Customer - We always pay attention to our customers and we share the approach that emphasises dialogue, transparency and team work.

Environment – Shenzhen Wofly products ensure optimum levels of dosage with minimal chemicals and power consumption, and therefore, minimal impact on the environment.


Lead Time:


stock within 1-3days

10-15days for OEM

20-25days for ODM


Transaction History of the Supplier

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Transaction Overview


Transaction Details

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China (Mainland)
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Supplier Assessments:
30 Transactions 10,000+
The supplier’s transactions conduted via Alibaba.com in the past 6 months.
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Supplier's Trade Assurance Limit: US $27,000
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