NPT 4000Psi Stainless Steel Pressure Gauge PCTFE Seat Thread Joint

R31 series stainless steel pressure reducer, double stage diaphragm pressure reducing structure, stable output pressure, used in high purity gas, standard gas, corrosive gas, etc.

TYPICAL APPLICATIONS

• Laboratory
• gas chromatography instrument
• gas laser gas, gas manifold
• petrochemical industry
• test equipment.

DESIGN FEATURES

• Five hole designof the body
• Double-stage pressure-reducing structure
• Metal-to-meta 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

SPECIFICATION

• Maximum inlet pressure:3000,500psig
• Output pressure:0~25,0~50,0~100,0~250psig
• Safety testing pressuress:5 times of max pressure
• Working tem:-40℃~+230℃
• Leakage rate:2x10-8cc/sec He
• Cv:0.06

MATERIAL

• Body:316L,Brass
• Bonnet:316L,Brass
• Diaphragm:316L
• Strainer:316L(10um)
• Seat:PCTFE,PTFE,V,eapel
• Spring:316L
• Stem:316L

ORDERING INFORMATION

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.