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What is the maintenance method of the pneumatic shut-off valve

Update:17-06-2019
Summary:

The pneumatic shut-off valve can function as a quick cu […]

The pneumatic shut-off valve can function as a quick cut, and has the characteristics of simple structure, responsiveness and reliable operation. So what is the maintenance method for the pneumatic shut-off valve?

Pneumatic shut-off valves are commonly used in industrial sectors such as petroleum, chemical, and metallurgical industries. The air supply to the pneumatic shut-off valve requires filtered compressed air. The medium flowing through the valve body should be liquid and gas free of impurities and particles.

Pneumatic shut-off valve classification: ordinary pneumatic shut-off valve, fast emergency pneumatic shut-off valve.

Regulatory valve lines can generate various stresses due to improper combination or installation, such as thermal stress generated by high temperature media, stress caused by uneven tightening force during installation, stress caused by some human collisions to the regulating valve and its piping. These stresses act on the regulating valve and its pipeline, which can easily affect the performance of the regulating valve. In severe cases, it will affect the regulating system itself, causing the stem and the guide to deform and not centered with the valve seat; for the split valve The body's regulating valve may cause the valve body flange to disengage; the stress may also cause the valve seat to leak. Therefore, it is necessary to ensure that stress is avoided or eliminated at any time and that the stress is directed away from the regulating valve.

Regulators and related accessories used in explosive hazardous areas should be checked for safe operation, such as whether the sealing cover is tightened, the operation of the safety barrier, the power supply, etc., to ensure that the regulating valve and related accessories can operate safely.

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