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Pneumatic disc valve leakage should be how to solve?


Release time:

2022-03-09

Wuxi Xinming automatic control valve industry to introducePneumatic disc valveHow to solve the air leakage situation. The primary feature of pneumatic ball valve is its own compact structure, easy to operate and repair, suitable for water, solvents, acids and natural gas and other general operating media, but also suitable for poor operating conditions, such as oxygen, hydrogen peroxide, methane and ethylene. The disc valve body can be all or combined.

Pneumatic disc valve leakage should be how to solve?

Wuxi Xinming automatic control valve industry to introducePneumatic disc valveHow to solve the air leakage situation.
The primary feature of pneumatic ball valve is its own compact structure, easy to operate and repair, suitable for water, solvents, acids and natural gas and other general operating media, but also suitable for poor operating conditions, such as oxygen, hydrogen peroxide, methane and ethylene. The disc valve body can be all or combined. Pneumatic disc valve is mainly dividedPneumatic disc valvePneumatic V-type disc valve, pneumatic high-pressure disc valve, pneumatic fluorine-lined disc valve and other products. The pneumatic disc valve switch is simple, small in size, can be made into a large diameter, reliable sealing, simple structure, and convenient repair. The pneumatic disc valve can be widely used in many environments, and can reasonably complete the flow control and adjustment effect. Prevent risks caused by uneven flow, or cause engineering to encounter obstacles. The structure of the pneumatic disc valve is a ball and two sealing seats are closed in the left valve body and the right valve body core. When the ball is in the closed position, the medium force effect at the upstream end is on the disc body, so that the ball presses the sealing seat at the downstream end tightly, and a working specific pressure occurs. When the working specific pressure is greater than the necessary sealing specific pressure, effective sealing is achieved. When feeling the effect of the valve, we should also actively understand the related problems of the pneumatic valve. Only by selecting a suitable pneumatic valve can we improve the power and value of the operation and reduce the trouble. What are the factors that need to be considered when choosing a suitable pneumatic disc valve.
In the choice of pneumatic disc valve, the first need to consider the use of safety performance. No matter what kind of equipment, the use of safe, stable operation is often welcomed by everyone and sought after. The valves are the same. In the process of selection, the use of the valve can not affect the circulation of the material, and will not be directly touched with water or other liquid objects, to prevent the impact on the sealing effect of the valve, and then can not accurately complete the effect of the valve. Observe the pneumatic actuator for air leakage, especially at the valve stem connection and the two end covers; the cylinder exhaust hole leaks, due to the aging of the two movable parts inside the cylinder and the sealing ring of the cylinder body. The upper and lower parts of the cylinder are leaking, and the sealing effect is not reached due to the frequent activities of the sealing ring of the actuator and the cylinder. Leakage of the solenoid valve on the cylinder, perhaps due to high pressure relief valve caused.

 

The tension spring in the cylinder is damaged, the force is not in place, and then the cylinder leaks. Check whether the solenoid valve is operating normally, with or without air leakage; Check whether the locator operation is normal, with or without air leakage; Pneumatic ball valve cannot be closed to zero, perhaps for two reasons. First, it is actually closed to zero, but the response indication is not available. This should be a signal problem and can be handled by adjusting the positioner. Second, it is true that it is not tightly closed. The big one may be that the valve sealing gasket is damaged, or the valve stem joint may roll over and receive jam. This kind of problem needs to remove the valve body and contact the pneumatic valve manufacturer to replace the sealing gasket and add lubricating oil to the tumbling place so that it can operate normally.
The above is Wuxi Xinming automatic control valve industry to introduce the relevant content.

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