How to Maintain a Pneumatic Ball Valve?
Pneumatic actuated ball valve is an opening and closing control device that operates the valve through compressed air. It not only has fast switching speed, but also only needs one air source, which not only saves a lot of human resources and time, but also does not require on-site operation or high-altitude and dangerous introduction of manual operation. Remote centralized control greatly improves and ensures the safety of use. Therefore, the more widely used in the industrial field, the larger the amount of use and the faster the consumption. In order to enhance the service life of the pneumatic ball valve, daily maintenance is essential.
How to maintain a pneumatic actuated ball valve?
Pneumatic ball valves should be placed in a ventilated and dry closed room to avoid entry of debris and wear, and both ends of the valve should be blocked. In addition, before using the pneumatic ball valve, the iron filings and other debris in the ball valve body should be cleaned with clean water.
If the pneumatic actuated ball valve cannot be used immediately, due to the long storage time, it needs to be checked and cleaned regularly. After cleaning, it should be coated with anti-rust oil. As for the cleaning medium, generally only need to clean with water. It should be noted that for the interpretation of cleaning harmful to health, we must first understand its characteristics, and then choose the corresponding cleaning method. Periodic removal of valve seal material is also required. Avoid leakage and wear during use.
After the pneumatic ball valve is installed, it is also necessary to regularly check whether it is working properly, check whether the valve switch is flexible, and check its aging degree. The main inspection items include:
- The wear of the sealing surface of the ball valve.
- The wear of the trapezoidal thread of the stem and stem nut.
- Whether the packing has expired and failed, if so, it should be replaced in time.
- After the ball valve is overhauled and assembled, the sealing performance of the valve should be tested.
In order to ensure the normal operation of the pneumatic ball valve, lubricating oil should be injected into the ball valve regularly. When filling oil, not only should pay attention to the amount of oil filling, but also pay attention to the quality of the filling amount. After all, bad filling oil not only will not maintain the ball valve, but will cause damage to it. What’s more, pay attention to the problem of pressure. If the amount of oil injection is too large, the oil injection port will be easily blocked. If the pressure is too low, it will lead to sealing or failure.