Pneumatic ball valve pneumatic actuator overload performance is what? How to protect?
The pneumatic valve is powered by the compressed air source of the pneumatic actuator. As a kind of pneumatic valve, the normal operation of the pneumatic ball valve, the pneumatic butterfly valve, the pneumatic cut-off valve and other valves is indispensable to the normal operation of the pneumatic actuator. Load is an important reason for the damage of the pneumatic actuator, and once the pneumatic actuator is overloaded, it will damage the valve and affect the work efficiency.
So, what are the reasons for the overload of pneumatic actuators? What are the performance of pneumatic actuator overload?
1. The setting value of torque limiting mechanism is wrong, because the stopping torque of pneumatic actuator is less than its setting value, it will continuously produce excessive torque, so that the motor stops rotating.
2, pneumatic ball valve pneumatic actuator power supply voltage is too low, so that it can not obtain the required torque, causing the motor to stop rotating.
3, continuous use, the heat generated by more than the allowable temperature appreciation of the motor.
4, the use of the environment temperature is high, relatively reduce the heat capacity of the motor.
5, due to some reasons, the torque limiting mechanism circuit failure, resulting in excessive torque.
In order to avoid the overload operation of the pneumatic actuator of the pneumatic ball valve, what protective measures can we do in our daily life?
1, through the use of thermostat to the motor continuous operation or electric operation of the overload protection.
2. Short-circuit accidents can be effectively avoided by using fuses or overcurrent relays.
3, through the use of thermal relay to protect the motor block.
Pneumatic valve pneumatic actuator in the use of the process is to maintain, only understand the pneumatic actuator load causes, master the protection measures, in order to better protect the pneumatic actuator, prolong its service life.
