Check whether the pneumatic butterfly valve is in good condition for normal operation of the car
With the increasing use of pneumatic butterfly valves, many related products have been derived. In the previous article, we introduced you to the use of pneumatic butterfly valves in cars. Do you know? In fact, the pneumatic butterfly valve is a vulnerable part in the process of automobile operation. The working quality of the pneumatic butterfly valve will directly affect the stability of automobile driving and the life of other parts. Therefore, we should keep the pneumatic butterfly valve in good working condition. The following methods can be used to check whether the pneumatic butterfly valve works well.
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, explain that there is no resistance inside the pneumatic butterfly valve, and the pneumatic butterfly valve does not work. At this time, take part in the appropriate lubricating oil, and then stop the test. If the shell is hot, the pneumatic butterfly valve is short of oil, and it should be filled with oil; Otherwise, the pneumatic butterfly valve is invalid.
2. Press the bumper firmly, and then release it. If the car jumps 2-3 times, it indicates that the pneumatic butterfly valve works well.
3. If the vehicle vibrates violently in case of slow driving and emergency braking, it indicates that the pneumatic butterfly valve is faulty.
4. Dismantle the pneumatic butterfly valve to make it upright, clamp the lower connecting ring on the bench clamp, and pull and press the valve rod several times. At this time, there should be stable resistance. The resistance of pulling upward should be greater than the resistance of pressing downward. If the resistance is unstable or no resistance, it may be the lack of oil inside the pneumatic butterfly valve or the damage of valve parts. Stop repairing or changing parts.
After confirming that the pneumatic butterfly valve has problems or failure, check whether the pneumatic butterfly valve can leak oil or has traces of obsolete oil leakage. The oil seal washer and seal washer are cracked and damaged, and the nuts of the oil storage cylinder cover are loose.
If oil leakage is found, first tighten the nuts of the oil cylinder head. If the pneumatic butterfly valve still leaks oil, it may be that the oil seal and sealing washer are damaged and invalid. Replace them with new seals. If the oil leakage still cannot be eliminated, the valve rod should be pulled out. If it feels stuck or different, further check whether the clearance between the piston and the cylinder barrel is too large, whether the piston connecting rod of the pneumatic butterfly valve is bent, and whether the piston connecting rod surface and cylinder barrel are scratched or pulled.
The application of pneumatic butterfly valves in automobiles is still of great importance. If you want to use automobiles normally, you should take care of yourself and check regularly to see if the pneumatic butterfly valves are normal! If you need to purchase pneumatic butterfly valve, please choose Wuxi Xizhen pneumatic butterfly valve!