Ball valve is a widely used valve in industrial pipeline systems, used to cut off or connect the flow of media. The malfunction of ball valves may lead to production interruptions or safety accidents, so timely identification and repair of faults are crucial.

Common types of ball valve faults and their solutions:

Leakage issue

Ball valve leakage may be caused by damage or improper installation of components such as valve seats and sealing rings. The solution includes checking the sealing performance of the valve seat, replacing damaged sealing rings, and ensuring correct installation of the valve body.

Difficulty switching on/off

If the ball valve is difficult to open and close, it may be due to rust or deposits inside and outside the valve body. The solution involves removing the sediment inside the valve body and cleaning and anti-corrosion treatment of the valve body.

Decreased sealing performance

The decrease in sealing performance may be due to aging or damage of the sealing material of the valve seat. The solution is to check the sealing performance of the valve seat, replace the sealing material, and reinstall the valve body.

Switch malfunction

The malfunction of the switch may be caused by damage or poor lubrication of components such as the valve stem and valve core. The solution is to check the condition of these components, replace damaged parts, and ensure good lubrication.

Valve stuck

Valve jamming is usually caused by rust or deposits on the inside and outside of the valve body. The solution is to remove the sediment and clean and anti-corrosion the valve body.

Valve positioning is inaccurate

Inaccurate valve positioning may be caused by damage or misalignment of components in the positioning system. The solution is to inspect the components of the positioning system, replace damaged parts, and readjust the positioning of the valve.

When dealing with ball valve faults, safety should be ensured first, the pressure before and after the valve should be removed, and sealed components, especially non-metallic components, should be protected during disassembly and reassembly. The cleaning agent should be compatible with the material in the ball valve to avoid damaging the valve components.