Lift check valve with a spring load can withstand light valveflap, flapvalve lift is not high.
升降式止回阀使用一个可承受弹簧载荷的轻量阀瓣,阀瓣的升程不高。
2
This valve is normally automatic work, in a direction of flow of fluid under pressure, open the flapvalve;
通常这种阀门是自动工作的,在一个方向流动的流体压力作用下,阀瓣打开;
3
Based on a systematic analysis of the movement of the flapvalve, a mathematical model with constraint conditions and objective functions is established.