Description: 1competing companies according to valve types and specifications, the actual working pressure, working temperature, medium to determine the valve operating torque, and consider the user on ball speed, the explosion-proof performance, voltage, current, use of the environment, remote control, intelligent control and other requirements, size, price, after sale service integrated consideration, selection of suitable sizes of electric device, according to the customer can also request the pneumatic head configuration.

2because of the electric device configuration to consider more factors, so that customer orders. Competing company full communication, to ensure that the valve electric device is correct, reasonable configuration.