气动阀门故障阀位分类及探讨

Classification and Discussion of Fault Valve Position of Pneumatic Valve

气动调节阀的作用方式有气开、气关两种类型,气开阀随信号压力的增大而开度增大,无压力信号时,阀处于全开状态,气关则相反。合理选择调节阀的作用方式,对确保生产安全、提高产品质量和减少经济损失是至关重要的;还可以通过对气开、气关方式的正确选择,达到故障保位的作用。

There are two types of pneumatic control valves: pneumatic opening and pneumatic closing.The opening of the pneumatic opening valve increases with the increase of signal pressure. When there is no pressure signal, the valve is fully open, and the pneumatic closing is the opposite. Reasonable selection of the action mode of the regulating valve is very important to ensure production safety,improve product quality and reduce economic losses. The function of fault protection can also be achieved through the correct selection of gas on and gas off modes.