How should we judge the quality of pneumatic actuators good and bad
Wuxi Xinming automatic control valve industry to introduce how we should judgePneumatic actuatorThe quality of good and bad. Usually, when we choose pneumatic actuators, we are more concerned about the price and quality. If the price is right, we will want to know more about the quality.
Wuxi Xinming automatic control valve industry to introduce how we should judgePneumatic actuatorThe quality of good and bad.
Usually, when we choose pneumatic actuators, we are more concerned about the price and quality. If the price is right, we will want to know more about the quality. If we meet the requirements, we will choose to buy them. After all, whether the quality of a pneumatic actuator is qualified or not determines whether the production is safe and whether it will cause hidden dangers. How to judge the quality of pneumatic actuators.
First, it is also very important to seal. A pneumatic actuator sealing is good or bad, directly determines whether it will leak. Now the pneumatic actuator seal is mainly hard seal and soft seal two. Have their own suitable medium. The second is the sensitivity and reliability of the action, which refers to the sensitivity of the pneumatic actuator to the change of the medium parameters and the corresponding response. For the throttle valve, pressure reducing valve, regulating valve and other actuators used to adjust the parameters of the medium, as well as the safety valve, pig valve and other pneumatic actuators with specific functions, its functional sensitivity and reliability are very important technical performance indicators.
Third, the opening and closing speed of the switch, the opening and closing speed is expressed by the time required for the actuator to complete an opening or closing action. Generally, there are no strict requirements for the opening and closing speed of pneumatic actuators, but some working conditions have special requirements for the opening and closing speed. If some require rapid opening or closing to prevent accidents, some require slow closing to prevent water hammer, etc. This should be considered when selecting the type of actuator. Fourth, the problem of medium circulation, medium re-circulation suitable for product pressure, therefore, in the design of pneumatic actuators to reduce its resistance to the medium as much as possible.Pneumatic actuatorAccording to the high requirements of the working conditions, the future will be the era of occupying the main leading position. The appearance structure of the pneumatic actuator not only meets the requirements of explosion-proof, but also has the advantages of small size, light weight and large torque, because it adopts the transmission structure design of "single cylinder, double piston-variable torque.
With the continuous increase of pneumatic actuators, pneumatic actuators in a very prominent performance, as a single-cylinder design of pneumatic actuators, its double-cylinder design than the rack and pinion actuator, no doubt in the volume of small half. Secondly, when the pneumatic actuator is in operation, the output force torque can change with the angle, and the torque value is large when the valve is opened or closed, which is just in line with the law of the valve. Compared to rack and pinion actuators, pneumatic actuators and more torque saving, because the rack and pinion actuator torque is constant. Cylinder is extruded aluminum alloy, and by hard anodizing treatment, the inner surface is hard, strength, high hardness. The sliding bearing made of low friction material avoids direct contact between metals, has long service life, low friction coefficient and flexible rotation.
The above is Wuxi Xinming automatic control valve industry to introduce the relevant content.