Electric and pneumatic valve electric actuator selection breaker

because electric and pneumatic valve breaker is made up by pneumatic valve and electric actuator, so when the electric and pneumatic valve is determined how to correctly choose breaker electric device is related to the actual use of the important factor to whether can meet the engineering need. Not only should consider when choosing an electric device of the working environment, electrical control and general technical performance, and comprehensive technical performance for the electric device should also be comprehensive consideration.
stem diameter, electric and pneumatic valve pneumatic breaker permitted
lifting lever pneumatic valve selection should pay attention to the allowed by pneumatic valve electric actuator rod diameter values, pneumatic valve stem diameter must be smaller than this value. In addition, for multi-turn electric device, the selection of the pneumatic valve stem cover should also be put forward when the height requirements ( Associated with pneumatic valve diameter pain) 。 Rotating rod pneumatic valve is not installed with pneumatic valve stem cap.
pneumatic valves, electric and pneumatic valve breaker connection with electric actuator
the pneumatic valve and electric actuator connection type and size should comply with the national standards: GB/T - Many rotary pneumatic valve actuator connection, GB/T - Part of the rotary pneumatic valve actuator connection.
breaker, electric pneumatic valve electric actuator output torque and rotational speed of the
output torque value is one of the important technological parameters of the electric actuator, also need to choose the important parameters in use. If you choose when equipping electric pneumatic valve electric actuator output torque of excessive or insufficient is not desirable. Because generally, power plant when the products leave the factory must be output torque value test and adjustment, is relatively accurate. If you choose too large output torque allowance, will make electric pneumatic valve has a great potential risk, in the event of control failure situation will easily cause the damage of pneumatic valves ( Pneumatic valve rod bending, pneumatic valve body burst) Accident phenomenon and easy to cause pipeline system. So the output torque allowance too much choice is not desirable. If can't open it in the actual work of pneumatic valve is also belong to choose is not reasonable.