How to protect the load case of the pneumatic actuator?

Pneumatic actuators is pneumatic valve actuator, determines the execution efficiency of pneumatic valve. Pneumatic actuators in use process should pay attention to protection, avoid some reasons cause the damage of the pneumatic actuators. Load is an important cause of the damage of pneumatic actuators, wenzhou's letter self-control to analysis the main performance of several kinds of load for everyone. , a torque limit institutions setting is wrong, stop the torque is less than the setting value, resulting in continuous produce too large torque, the motor stop running. Second, the power supply voltage is too low, make its cannot obtain the required torque, motor stop running. Third, continuous use, the heat generated by the savings of more than the allowed temperature to rise of the motor. Fourth, the use of environmental temperature on the high side, relatively decreased motor heat capacity. Five, because of some reasons make the torque limit circuit failure, lead to excessive torque. Protection for pneumatic actuator load case are: a, through the adoption of thermostat to the continuous operation or electric operation of motor overload protection. Second, through the adoption of fuse or over-current relay can effectively avoid the short circuit accident. Third, by means of thermal relay and to protect the motor stalling. Pneumatic actuators in use process is to maintain, only load causes of pneumatic actuators, control protection, can better protect the pneumatic actuators, prolong its service life.