How to select a valve actuator?
Valve actuators automatically control in a long distance. It needs to be combined with some related accessories of the valve. The selection of valve actuators needs to consider various factors, not only the types of valve actuators, but also the valve actuators. In addition to the caliber and diameter, etc., it also needs to match the external environment in which it is located. Let's take a look at the selection method of valve actuators.
1. Selection of valve actuator specifications:
First of all, the type of valve actuator and the connection size of the valve actuator should be determined, and then the specification and model of the valve actuator should be selected. The selection of the specification needs to integrate the maximum output torque, the torque during operation, the output speed and so on. Factors in the selection of valve actuator specifications and models.
1.1 Selection of the maximum output torque of the valve actuator:
Valve actuators will need to meet many conditions in the design process. Each valve opening and valve operation and valve closing require torque to drive the operation of the valve, because torque can be used as the driving force for its operation. Therefore, torque is important for valve execution. The design of the valve actuator is very important. The valve actuator will have a maximum output torque. When we select the valve actuator, we must follow the law that the maximum output torque is greater than the actual maximum output torque. This law can Allow the valve actuator to close and open normally.
1.2. Selection of operating torque of valve actuator:
When the valve actuator is working normally, the opening torque and closing torque of the valve actuator are quite different from the torque during operation, because the opening torque and closing torque of the valve are very large, but the operation process The torque is relatively stable and the torque is relatively small, but in order for the valve actuator to work normally, it is necessary to always ensure that the operating torque of the valve actuator is greater than the closing torque and opening torque of the valve.
2. Selection of stem diameter:
The diameter selection of the valve stem of the valve actuator needs to be combined with the rising stem valve. In general, the stem diameter of the valve actuator needs to be less than or equal to the diameter of the largest stem of the valve actuator. Sometimes the diameter of the valve stem does not affect the valve actuator, but it has a great impact on the size selection of the keyway.
The above is the relevant content of the valve actuator selection. Only by making the best selection of the various parts that make up the valve actuator and some factors that affect the valve actuator can the valve actuator work better. Now you implement the valve Do you understand the selection of the device?
