For the actuators with pneumatic diaphragms or air cylinders the matching flame-proof type electric-gas valvepositioner shall be provided together with the valve.
执行机构采用气动薄膜或气缸执行机构的,随阀提供配套隔爆型电?气阀门定位器。
2
Original chassis pneumaticvalvepositioner output section and the position measurement of large radiation-resistant components, usually pneumatic actuator in accordance with the installation.
原机箱中阀门定位器气动输出段和大型耐辐射位置测量部件,将按照通常气动执行机构进行安装。
3
Air bypass valve with pneumatic actuator and positioner.