Common sense of pneumatic actuator installation and maintenance
The installation accuracy of pneumatic actuator and valve is correct, which directly affects the safe operation and service life of the actuator. Reasonable installation is to ensure the coaxiality between the actuator shaft and the valve stem.
Actuators and valves before assembly
Valve torque shall not exceed required torque.
After the actuator and valve are assembled
Test of pneumatic actuators and valves at the same time, the rated pressure to the valve sealing pressure, air pressure of 0.4-0.7 Mpa or according to customer required air pressure, switch two inlet pneumatic actuators and observation of the pneumatic valve open and shut case, must not stop, crawl phenomenon, switch should be flexible rotation, and repeating the test.
Pneumatic actuators are equipped with solenoid valves
When debugging, first use manual device (solenoid valve red button) debugging, and then power debugging. For manual operation, power off first and then adjust the manual mechanism. When the air source is operated, the worm gear and worm of the manual mechanism should be removed first, that is, the small handle should be transferred to the automatic position, and the pneumatic actuator is the field instrument.
Should be regularly maintained and maintained
The air source of the actuator should be kept dry and clean and regularly drain and discharge the air filter to avoid entering the solenoid valve and actuator and affecting the normal work. Under normal service conditions, it should be inspected every six months and once a year.
