The reversing driving device of the valve plug has the advantages of reasonable structure, good stopping property, high precision, easy to process, and suitable for the multi-channel conversion valve. 其阀芯旋转驱动装置结构合理,密封性好,精度高,便于加工,适合多路换向阀。
This article is an introduction of a new typed stopping valve powered by cylinder which controls the open-on and cut-off of a pipe. 介绍了以气缸为动力源控制管路通断的新型截止阀。
Leak stopping of steam valve with medium pressure 中压蒸汽阀盖的带压堵漏
The water hammer caused by stopping of pumps is calculated. The influence to water hammer and pump running by closing regulation of valve behind pumps is discussed. 对工程的停泵水锤进行了计算,并探讨了水泵出口阀门关闭规律对水锤和水泵机组的影响。
To be brief, the pressure of accumulator can be kept by starting and stopping hydraulic pump, and the tension pressure can be kept at a constant through controlling the direction and size of opening of electrohydraulic servo valve. 通过控制液压泵的启停来实现蓄能器的压力保持,通过控制电液伺服阀的开口方向和开口大小保持张紧力的恒定。