Slow shut check valve is composed by the main valve, Non-returning valve, needle valve, ball valve and piezometer, etc.
     This valve is used to adjust the speed of opening and closing, prevent medium reflux, and automatically control the speed of open and shut of water pump.
    Slow shut check valve has two types, Diaphragm type from DN20~DN500, piston type from DN600~DN800. This valve can be widely used in influent pipelines in high-rise buildings, Industries water supply system.

     Valve is installed at the water pump outlet of the water supply. It eliminate devastating water hammer, effectively reduce water hammer pressure due to shutoff of valve, ensuring safety operation of the line network.

Technical Specification/技術(shù)規(guī)格

- Size/規(guī)格：DN20-DN800
- Diaphragm type/隔膜式：DN20-DN500；
- Piston type/活塞式：DN600-DN800
- End/連接法蘭：ISO PN6/10/16 
- Work Pressure/工作壓力：PN10/PN16 
- Work Temperature/工作溫度：0℃～80℃ 

 Structure Character/結(jié)構(gòu)特點(diǎn)

- Slow shut check valve is composed by the main valve, Non-returning valve, needle valve, ball valve and piezometer, etc.
- Adjust the speed of opening and closing, prevent medium reflux. Ensuring safety operation of the line network. 

Main Components and Materials/主要零件和材質(zhì)

Dimensions/尺寸