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Anti-Pollution Cut off Valve (HS42X)

Anti-Pollution Cut off Valve (HS42X)
Price: US $ 107-3442/Piece
Trade Terms: FOB
Min Order: 1/Piece
Pay Type: T/T
Conventional type anti-pollution cut off valve is composed of two check valves in tandem connection.
Safety type anti-pollution cut off valve is to add a drainage and decompression device to the secondary check valve system. In this case, even if all the secondary check seals are broken together, it still can function to prevent back flow. Therefore, it is a safety device to prevent back flow pollution in pipeline of daily drinking water system. Safety type anti-pollution cut off valve is composed of secondary check valve and a drainage and decompression system. The upper cavity connects with the inlet of first-stage non-return system. The first and second stage check valve system mainly consists of valve body, inlet connector, disc, gasket, spring, etc. Drainage and decompression system mainly consists of valve bonnet, diaphragm, gasket, outlet, spring and air block device.
Suitable MediumWater, Oil, Gas and etc.
Main materialCAST IRON,ASTM A216 WCB, WCC, WC6, SS304, SS316, CF8, ETC.
Suitable Temperature≤80
Nominal PressurePN10--PN25
Nominal DiameterDN40--DN600
Flange DimensionASME B16.5, BS4504, ISO2531, ISO7005 and other standards conforming to the requirements
Face to Face LengthAPI594,BS5155, ISO5752, DIN3352 and other standards conforming to the requirements

Prod Model: HS42X
Markets: North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Certificate: ISO
Established in 1985, Zhejiang Guanlong Valve Machinery Co., Ltd. is a professional manufacturer which integrating development, production, sales, installation and service into an organic whole.
Our company mainly manufactures valves according to ANSI, API, DIN, BS, and Chinese GB standards. We are specializing in producing hydraulic control valves, check valves, multifunctional pump control valves, pressure reducing valves, adjusting valves and butterfly valves. There are 6 major series and more than 1000 specifications now.
Our products are exported to worldwide, such as the USA, Canada, Europe, the Middle East and South East and Southeast Asia. With high content of technology and reliable quality, our products have gained good fame from the customers.
After nearly 20 years of development and self-perfection, our products are supported by novel design, excellent structure, elaborate workmanship, exquisite technology and complete testing measures.
We will fully exert our advantage on technology and management to improve continuously our product quality and manufacture high quality valve products to satisfy the customers.

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  • Zhejiang Guanlong Machinery Valve Co., Ltd.

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