Established in 1993, Guanfa Valve Manufacture Co., Ltd. is specialized China cylinder valve manufacturer and distributor of valves, hoses, tubes and pipes. Our oem cylinder valves are suitable for acid, alkali, water, steam, seawater, coal gas and natural gas. They are widely used in petroleum, chemical, paper making, fertilizer, brewing and metallurgy. The use of specialized software of Pro/E and CAD has shorted the P&D and trial manufacture cycle, and greatly improved the service life and dependability of products. Our high-quality products have been exported to the North Amercia, UK, USA, Germany, Italy, India, France, Australia, Japan.

This rugged cylinder valve is constructed from forged brass. The valve body has a pressure rating of 5000 PSI. An external tang on the seat plug in conjunction with a virgin teflon back seat allows for smooth operation of the valve. The seat plug also contains nylon soft seat for low torque sealing. The outlet connections are manufactured in accordance with the Compressed Gas Association V-1 standard. Besides the standard connections offered below other inlet and outlet connections are available upon request. It as a Piston type strong durability and is used for various fluids due to its perfect operation. By Handle-attaching type, it can be used manually or automatically. Body : FC20, SCS13. Waist : STS304. Size : 15mm - 80mm. Fluid Applied : Water, Air, Gas, Oil, Steam, Etc. Max Working Temperature : 240°C
Ambuent Temperature : -10°- +80°. Max Working Pressure : 10Kgf/cm2. Even under any conditions, its operation is smooth. It is light and has permanent life due to strong durability
Self closing valve type for LPG pi marked according to EN13.152 standard.

Self closing valve type for LPG pi marked according to EN13.153 standard
With or Without Pressure Relief Valve. Also PRV for large cylinders
Outlet: POL CGA 510/511, W21,8x1,814 LH DIN No. 1 and 2 + many others
Inlets: 3/4" NGT, W28,8x1/14" DIN, W19,8x1/14 DIN and others
Exported and domestic use of three kinds of samples of CGA640, CGA330, CGA350s,
Its main technique characteristics is: To work under the high temperature, high pressure, high vacuum. Nominal Pressure：20Mpa, work temperature：200℃、leak rate: 1×10-8mbarl/s. Take to have the safety device of blast. The internal capacity is small, to less pollution. long life for use. Have two defend the diaphragm seal safe device of burst.
Valve head and valve seat adopting the metal to hard seal structure of the metal to pass exactitude abrasive. The inside and outside of wall proceeds electrochemistry Polishing
Another, my factory proceed to dispose of inside wall polishing to variety kinds of gas cabinet and stainless steel pipe. The roughness to reach Ra0.2.

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