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Zhejiang Guanlong Machinery Valve Co., Ltd.

Valve, Anti-Pollution Cut off Valve, Control Valve manufacturer / supplier in China, offering Anti-Pollution Cut off Valve (NPT), 2/3 Way Solenoid Valve DC24V/AC220V, Globe Double Chamber Adjustable Pressure Regulating Pressure Reducing Valve (Yx741X) and so on.

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Supplier Homepage Product Antifouling Shut off Valve Anti-Pollution Cut off Valve (NPT)

Anti-Pollution Cut off Valve (NPT)

Purchase Qty.:
(Pieces)
1-499 500+
FOB Unit Price: US $116 US $232
Purchase Qty. (Pieces) FOB Unit Price
1-499 US $116
500+ US $232
Get Latest Price
Production Capacity: 5.000PCS/Month
Transport Package: 1. Inner: Plastic Package2. Outer: Plywood Case
Payment Terms: T/T

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Basic Info
  • Model NO.: HS11X
  • Trademark: guanlong
  • Origin: China
  • Certificate: ISO
  • Specification: ISO9001: 2000
  • HS Code: 8481804090
Product Description
Valve Standard:
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 materialPN10--PN25CAST IRON,ASTM A216 WCB, WCC, WC6, SS304, SS316, CF8, ETC.
Suitable Temperature≤80
Nominal Pressure
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

Anti-Pollution Cut off Valve (NPT)
Anti-Pollution Cut off Valve (NPT)


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