Diaphragm Seal 1/4'' 316L SS 3000 PSI Gas Cylinder Regulator

Product Description:

R31 series stainless steel pressure regulator, double stage diaphragm reducing structure, stable input pressure, suitable for high purity gas, standard gas, corrosive gas etc.

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Design Features:

• Five hole designof the body
• Double-stage pressure-reducing structure
• Metal-to-metal diaphragm seal
• Body thread:input and output connection
• 1/4”NPT(F)
• Easy to clean internal structure
• Filter element installed internally
• Panel mounting and wall mounting available
• Optional outlet: needle valve, diaphragm valve

Technical Data:

• Maximum inlet pressure: 3000, 500psig
• output pressure:0~25, 0~50, 0~100, 0~250psig
• safety testing pressure: 1.5 times of maximum inlet pressure
• working temperature: -40~+165 deg F(-40~+74 deg C)
• leakage rate: 2×10-8 atm cc/sec He
• CV value=0.06

Application:

• laboratory
• gas chromatography
• gas lasers
• gas bus-bar
• petrochemical industry
• testing equipment

Material:

Ordering Information

FAQ

Q. Are you manufacturer?

A. Yes, we are manufacturer.

Q.What is lead time?

A.3-5days. 7-10 days for 100pcs

Q. How do I order?

A.You can order it from Alibaba directly or send us a inquiry. We will reply you within 24 hours

Q. Do you have any certificates?

A. We have CE certificate.

Q. What materials do you have?

A. aluminium alloy and chrome plated brass are available. The picture shown is chrome plated brass. If you need other material, pls contact us.

Q. What is maximum inlet pressure?

A.3000psi (about 206bar)

Q. How do I confirm inlet connnection for cylidner?
A. Pls check cylinder type and confirm it. Normally, it is CGA5/8 male for Chinese cylinder. Other cylidner adapter are also
available e.g CGA540, CGA870 etc.

Q. How many types for connecting cylinder?

A. Down way and side way. (you can choose it)

Q. What is product warranty?

A: The free warranty is one year from the day of Commissioning qualified.If there is any fault for our products within the free warranty period, we will repair it and change the fault assembly for free.

Shenzhen Wofly Technology Group Co., Ltd. (WOFLY), established in 2011, is a national high-tech enterprise and a Specialized and Innovative (Little Giant) company.
We are a comprehensive gas system solutions provider, integrating engineering design, project construction, technical consulting, and product manufacturing & sales into one.

With over a decade of expertise in gas control and fluid systems, WOFLY is recognized as a trusted partner in the semiconductor, photovoltaic, and high-purity gas industries.

Our Qualifications

WOFLY holds multiple national professional certifications, including:

• National Building Mechanical and Electrical Installation Engineering License

• GC2 Pressure Pipeline Design & Installation Qualification

• Construction Safety Production License

Headquartered in Shenzhen, our group operates subsidiaries in Hunan, Hubei, Hong Kong, and a branch office in Shanghai, forming a robust national and international service network.

What We Do

WOFLY specializes in the R&D, production, and integration of gas system components and equipment, including:

• EP/BA Diaphragm Valves

• Pressure Regulators & Control Valves

• Instrumentation & Needle Valves

• Hydrogen Energy Valves and Filling Valves

• Check Valves, Filters, and Measuring Devices

• VCR Micro-Weld Fittings & Ultra-High-Purity Connectors

• Specialty Gas Equipment (GC/GR/VMB/VMP/VDB/VDP)

• Automatic Switching Systems & Gas Manifold Assemblies

Our complete range of products and solutions ensure safety, reliability, and ultra-high purity for demanding industrial environments.

Industries We Serve

WOFLY products are widely applied in:

• Semiconductors & Integrated Circuits

• Solar Photovoltaics & New Energy

• Microelectronics & Flat Panel Displays

• Lithium Battery Manufacturing

• Fiber Optics & Laboratories

• Biopharmaceutical & Food Engineering

• Petrochemical & New Material Industries

We provide tailor-made gas solutions to meet the precise needs of high-end industries worldwide.

Our Philosophy

At WOFLY, we live by our core values:

Technology First · Superior Quality · Excellent Service · Customer Priority

We continuously pursue technological innovation, independent R&D, and brand excellence.
With a spirit of responsibility and innovation, WOFLY is committed to building a world-class brand that represents the strength and vision of China’s national industry on the global stage.

Our Vision

To become a global leader in high-purity gas system engineering and equipment manufacturing, delivering safe, reliable, and innovative solutions that empower industries and drive sustainable progress.