AW pneumatic actuator used, make sure the valve opens, closing torque, and then do the valve using a fluid medium, added security value.
选用AW气动执行器时，先确定阀门启、闭的扭矩，再根本阀门使用的流体介质，增加安全值。
2
For the actuators with pneumatic diaphragms or air cylinders the matching flame-proof type electric-gas valve positioner 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。
3
The company specializes in the production of various kinds of electric pneumatic control valve, butterfly valves, valve.