Selection of regulating valve actuator

Release time:2017-10-19 author:admin Browsing volume:194

Selection of regulating valve actuator

In order to make the valve work properly, the actuating actuator is able to produce enough output to ensure the high seal and valve opening.

For double acting pneumatic, hydraulic and electric actuators, there is generally no reset spring. The size of the force has nothing to do with the direction of its operation, so the key to the selection of the actuator is to find out the maximum output force and the torque of the motor. For a single acting pneumatic actuator, the output force is related to the opening of the valve. The force on the regulating valve will also affect the motion characteristics, so we need to establish the balance of force in the opening range of the control valve.

Determination of the type of executive organization

After determining the output power of the executing agency, the corresponding executing agency should be selected according to the requirements of the process environment. The pneumatic actuator should be selected when the site has explosion-proof requirements. In terms of energy saving, the electric actuator should be chosen as far as possible. If the adjustment precision is high, the hydraulic actuator can be selected. Such as the catalytic reaction device for power plant turbine speed regulation, the refinery reactor temperature control etc..

Selection of regulating valve actuator

In order to make the valve work properly, the actuating actuator is able to produce enough output to ensure the high seal and valve opening.

For double acting pneumatic, hydraulic and electric actuators, there is generally no reset spring. The size of the force has nothing to do with the direction of its operation, so the key to the selection of the actuator is to find out the maximum output force and the torque of the motor. For a single acting pneumatic actuator, the output force is related to the opening of the valve. The force on the regulating valve will also affect the motion characteristics, so we need to establish the balance of force in the opening range of the control valve.

Determination of the type of executive organization

After determining the output power of the executing agency, the corresponding executing agency should be selected according to the requirements of the process environment. The pneumatic actuator should be selected when the site has explosion-proof requirements. In terms of energy saving, the electric actuator should be chosen as far as possible. If the adjustment precision is high, the hydraulic actuator can be selected. Such as the catalytic reaction device for power plant turbine speed regulation, the refinery reactor temperature control etc..


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