Pneumatic actuator type and quality discrimination!

actuators according to the form of energy into three kinds of pneumatic, electric and hydraulic they have their own characteristics, suitable for different occasions, the pneumatic actuators is the use of gas pressure as a driving force to drive or mediation valve actuators, pneumatic actuators is one of the types of actuators are widely used in class. Pneumatic actuators according to the different diaphragm and piston of the actuator. Fork type and gear rack type, their formation and the torque is more different, including gear and rack type pneumatic actuators because of its simple structure, safety explosion-proof features, in petroleum, chemical industry and power generation for high security requirement has been widely used in industry. Pneumatic actuators can be subdivided into two categories of single and double action, double-acting pneumatic actuators is refers to the actuator and off action is driven by air; While single-acting actuator only open action is air driven, action is to use spring to reset. From the perspective of the technical performance of pneumatic actuator has a large load, quickness and good adaptability to the environment, and many other advantages, which makes a large load of pneumatic actuators can be adapted to the application of high torque output. Because of the pneumatic actuator has so many advantages, varieties of pneumatic actuators are of variable quality on the market, then we how to visually distinguish the stand or fall of pneumatic actuators? Pneumatic actuators, generally speaking, a good surface coating layer or chemical treatment will level off is smooth, the surface of the colour and lustre is uniform, and poor quality of pneumatic actuators, by contrast, this is because the small manufacturer in the production process chart is convenient, save a lot of steps.