Anti-Pollution Cut off Valve (NPT)
|FOB Unit Price:||US $116 US $232|
|Purchase Qty. (Pieces)||FOB Unit Price|
|Transport Package:||1. Inner: Plastic Package2. Outer: Plywood Case|
- Model NO.: HS11X
- Trademark: guanlong
- Origin: China
- Certificate: ISO
- Specification: ISO9001: 2000
- HS Code: 8481804090
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 Medium||Water, Oil, Gas and etc.|
|Main material||PN10--PN25CAST IRON,ASTM A216 WCB, WCC, WC6, SS304, SS316, CF8, ETC.|
|Flange Dimension||ASME B16.5, BS4504, ISO2531, ISO7005 and other standards conforming to the requirements|
|Face to Face Length||API594,BS5155, ISO5752, DIN3352 and other standards conforming to the requirements|