一、結構及用途 Structure and purpose

該閥主要用于給水系統的水泵出口處，防止介質倒流，水錘及水擊現象，該閥兼具電動閥、逆止閥和水錘消除器三種功能，可有效地提高供水系統的安全可靠性，并將緩開、速閉、緩閉消除水錘的技術原理一體化，防止開泵水錘和停泵水錘的產生，只需操作水泵電動啟閉，閥門即可按照水泵操作規程自動實現啟閉，該閥流量大，壓力損失小，密封性能可靠，安裝維護、調試檢查方便、使用壽命長。

Used on the pump outlet of a water supply system to prevent medium＇s back-flow．water hammer and water shock．combining three functions as an elec-tric valve,check valve and water hammer remove r,capable of effectively raisingsafety and reliability of the water supply system,integrating the technical principle of slow-open,speed valve,slow-close removing water hammer and preventing both pump-starting and pump-stopping water hammers from being formed The gate can automatically carry out open-close upon the operation rules of the water pump just by operating the pump t0 open or close electrically This valve features a big flow and a small pressure loss．reliable sealing performance,easy installation,debugging and maintenance and a long duration．

四、主要外形及連接尺寸 Schematic diagram of installation

注：安裝示意圖中彈性座封閘閥或蝶閥任選，建議≥ DN350選蝶閥。

Note：Either elastic seat ring sealed gate valve or butterfly valve can be selected in the schematic diagram of installation.Recomended to select the butterfly valve in case of≥DN350.