游客

标题:Valve Characteristic Feature in English and Chinese
正文:
Valve Characteristic Feature in English and Chinese 1.Actuator:Device used to open/close or control the valve .Key types include electrical ,hydraulic and pneumatic .Movement may be quarter-turn or multi-turn .Actuators may be used when (i) valves are remotely located (eg,on pipelines) (ii) valves are located in hazardous areas (iii) manual operation would be time-consuming (eg,with larger valves)执行器:用于开启、关闭或调节阀门的装置。主要包括电动、液动和气动三种类型。运动方式可以是直角回转式或多转式。在以下场合可以考虑使用控制器：1.当阀门位置较远时（比如位于管道上）； 当阀门位于危险区域时；3.当手工操作较为费时（比如当阀门较大的时候）2.Air valve: Valve that is used to control the flow of air .Flows are normally small, so solenoid valves are suited 空气阀:用于控制空气流动的阀门。由于该类阀门中的空气流量通常较小，因此适用于电磁阀。3.Back pressure :The pressure exerted on the downstream side of a valve seat. 背压力：作用于阀门下游侧的压力。4.Ball valve:A quarter-turn valve with a spherical closing element held between two seats.Characteristics include quick opening and good shut-off. Ball valves are widely used as on/off valves in the chemical proce
[<<][[1]][2][3][>>]

查看评论(0)
发表评论



首页