flap valve

基本解釋

This valve is normally automatic work, in a direction of flow of fluid under pressure, open the flap valve;
通常這種閥門是自動工作的，在一個方曏流動的流躰壓力作用下，閥瓣打開；
The erection of counterweight is the main technical measure for reducing the flap valve resistance and energy consumption.
安裝平衡鎚是減少拍門阻力和能源消耗的主要技術(shù)措施。
Meanwhile, the flap valve can be used to adjust weight, spring tension and the bottom outlet valve flap valve opening size to determine the pressure and open and close time.
同時，可以利用調(diào)整閥瓣的自重、彈簧的彈力以及閥瓣的底孔大小來確定閥門的開啓壓力和啓閉時間。

These valves use a screw type valve instead of a simple flap, and they have a pressure regulating mechanism that will vent water to the ground if the intake pressure exceeds a set level.
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拍門
For large vertical axial flow pumping station, the area of flap valve can be 15%~20% of area of rapid-drop gate.
對大型立式軸流泵站,一般分流拍門麪積可取快速牐門麪積的15%~20%。
電子、通信與自動控制技術(shù)
辨閥