Pneumatic Actuator Has Good Environmental Adaptability
Pneumatic actuators use gas pressure to drive open or close valve actuators, also known as pneumatic actuators or pneumatic devices, but we usually call them pneumatic heads. The pneumatic actuators of the actuator and the regulatory agency are unified as a whole, and the actuators are diaphragms, pistons, forks and racks.
At present, in addition to pneumatic actuators, there is a more popular actuator, namely electric actuators. Both are actuators, but due to the difference in technical performance, they are widely used in different applications. Pneumatic actuators can simply realize fast linear motion, simple structure, convenient maintenance, and electric actuators for precise motion control occasions. The most prominent feature of pneumatic actuators is that the pneumatic actuators are environmentally friendly and adaptable to harsh working environments. If explosions occur, dustproof Request, more dust and humid conditions.
When compressed air enters the pneumatic actuator from the nozzle A, the gas causes the double piston to move linearly to both ends (cylinder head end), the gear on the piston rotates the gear to rotate 90 degrees counterclockwise, and the valve opens. At this time, the gas at both ends of the gas and the B pipe The nozzle discharges. On the other hand, when compressed air enters the two ends of the pneumatic actuator from the nozzle B, the gas pushes the double row to move linearly in the middle, and the rack on the piston drives the gear on the rotating shaft to rotate 90 degrees clockwise, and the valve closes . At this time, the gas in the middle of the gas actuator and the A tube are discharged. The above is the standard transmission principle. According to user needs, the pneumatic actuator can be installed in the opposite direction to the standard driving principle, that is, choose clockwise rotation to open the valve and counterclockwise rotation to close the valve. Single-acting (spring return type) pneumatic actuators are used for inlet nozzles and B pipe nozzles for exhaust holes (B pipe nozzles should be equipped with a muffler). A pipe nozzle enters the valve to open the gas when the spring releases the valve by the spring.
