jingqiu.net.cn-国精产品一区一区三区有限在线,亚洲字幕AV一区二区三区四区,久久无码专区国产精品s,国产女人喷潮视频在线观看

Stainless steel lift check valve

Dateline:2014-11-30    Hits:

Stainless steel lift check valve is to rely on the flow of the medium itself automaticallyopen and close the valve, backflow valve to prevent the media, also known as check valve, Dan Xiangfa, the reflux valve, and back pressure valve. Check valve is anautomatic valve, the main role is to prevent the media back, to prevent reverse pump and drive motor, and discharge the container medium. Check valve can also be used for the pipe to the pressure may rise to assist system exceeds the system pressuresupply on. Check valve can be divided into swing check valve (according to the focus of rotation) and lift check valves (along the axis of movement). Stainless steel lifting type commonly used check valve material is divided into 301304316316L, 321stainless steel.

手機網站