日韩福利片午夜在线观看资源_日本精品少妇一区二区三区_深夜爽爽动态图无遮无挡_日韩精品一区二区三区影院 亚洲国产精品综合久久网各_亚洲熟妇丰满xxxxx_亚洲精品国产av成拍色拍_风流少妇按摩来高潮

Home / Product

Product

700X

700X water pump control valve

Nominal pressure:PN1.0~2.5MPa
Nominal diameter:DN50~300mm

700X pump control valve is a type of backcheck valve installed at the pump outlet of high-rise buildings and other water supply systems to prevent the backflow of media. When the pump is about to stop the water supply, the valve is slowly closed about 90% first to prevent the water hammer and water hammer caused by sudden stop of the pump; When the pump is completely stopped, the valve is completely closed again to prevent the backflow of the pumped water, and effectively protect the pump from the impact of the backflow. The product is an essential protection device for the pump outlet. The valve is streamlined design, through the guide control of the solenoid valve to achieve accurate opening and closing, safe and reliable use, effectively prevent water hammer and water percussion sound, long service life, easy installation and maintenance.

700X水泵控制閥03.png

Typical installation diagram

700X水泵控制閥04.png