How to stop the inspection of pneumatic butterfly valve
In the application of pneumatic butterfly valves in daily life, how should we stop the inspection of pneumatic butterfly valves? Here, Songxia Xizhen Pneumatic Butterfly Valve Co., Ltd. will share with you the method of inspecting pneumatic butterfly valves.
In order to rapidly attenuate the vibration of the frame and body, and improve the smoothness and warmth of the vehicle, pneumatic butterfly valves are generally installed on the vehicle suspension system, and two-way acting cylinder pneumatic butterfly valves are widely used in vehicles.
Pneumatic butterfly valve testing includes pneumatic butterfly valve performance test, pneumatic butterfly valve durability test, pneumatic butterfly valve double excitation test, and stop indicator test, friction test, temperature characteristic test, etc. for all types of pneumatic butterfly valves.
1、 Stop the car after driving 10km on the road with poor road conditions, touch the shell of the pneumatic butterfly valve with your hand. If it is not hot enough, it means that there is no resistance inside the pneumatic butterfly valve, and the pneumatic butterfly valve does not work. At this time, you can participate in the appropriate lubricating oil, and then stop the test. If the shell is hot, it means that there is a lack of oil inside the pneumatic butterfly valve, and you should add enough oil; Otherwise, the pneumatic butterfly valve is invalid.
2、 Press the bumper firmly, and then release it. If the car has 2 to 3 jumps, the pneumatic butterfly valve works well.
3、 When the car is running slowly and emergency braking occurs, if the car vibrates violently, it indicates that there is a problem with the pneumatic butterfly valve.
4、 Dismantle the pneumatic butterfly valve to make it stand upright, clamp the lower connecting ring on the bench clamp, and pull and press the shock absorber rod several times with force. At this time, there should be stable resistance. The resistance to pull up (recover) should be greater than the resistance to press down. If the resistance is unstable or no resistance, it may be due to the lack of oil inside the pneumatic butterfly valve or the damage of valve parts, the repair or replacement of parts should be stopped.
If you want to learn more about pneumatic butterfly valves, please call us at 021-60344211, or leave a message online, and we will reply you in time.

Analysis of the Causes of the Damage of the Nonmetallic Compensators
Compensator products can be classified by shape, such as spherical compensator, and also by material, such as non-metallic compensator. In many applications of compensators with different characteristics, netizens find that non-metallic compensators are relatively easy to damage. Why? This is mainly about the application environment.
Due to the different application environments, the service life of non-metallic compensators is different. Since the structural data of non-metallic compensators are soft fabric data, it is necessary to fix the leather cloth when fixing screws,
On the other hand, press the skin to seal, so that the pipeline will not leak. When the device is installed, the front screw will become loose after the rear screw is tightened, and the accumulated acid water will be soaked into the screw to stop corrosion, which will corrode the screw, seriously reducing the service life of the non-metallic compensator. Therefore, the screw needs to be tightened repeatedly when the device is installed.
In addition, during the operation of non-metallic compensator, due to vibration and other reasons, the screws will also appear loose, resulting in pipeline leakage and product damage. Sometimes, due to the movement of the pipeline, the pull rod breaks and directly cracks the non-metallic skin, making it unable to operate normally.
The environment has a great impact on the non-metallic compensator, so we need to do a better job in daily inspection and maintenance. On the one hand, we can improve the safety of operation, and on the other hand, we can find the problems of the compensator in time and make effective treatment.