Poduct Descriptionr

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

Material:

• body: 316L, Brass
• bonnet: 316L, Brass
• diaphragm: 316L
• strainer: 316L(10μm)
• seat: PCTFE, PTFE, Vespel
• spring: 316L
• stem: 316L

Application:

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

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.