Ball valves are a commonly used control valve in industrial pipelines, and their advantages include simple structure, low flow resistance, and good sealing. However, in the process of use, ball valves can also have some common failures, such as valve jamming, leakage, leakage and so on. The following is an introduction to the common failures of ball valves and troubleshooting methods.

NO1  Valve jamming

    When the ball valve is not running for a long time or is not running well, the valve may be stuck, resulting in the inability to operate normally. At this time, first of all, you should check whether the valve is blocked by foreign matter or dirt, if so, you need to remove the foreign matter or dirt. However, if the valve's jamming is caused by reasons such as due to stem deflection or wear of the sealing surface, the valve needs to be repaired or the parts need to be replaced.

NO.2   leakage

    Leakage is one of the common failures of ball valves, which may be caused by:

    (1) Damage to the sealing surface: the sealing surface of the ball valve is easy to be worn out after a long time of use, resulting in leakage.

    (2) gasket aging: ball valve gasket is also easy to aging, become floppy, not be able to tightly fit the valve, resulting in leakage.

    (3) Fasteners are not secure: If the ball valve fasteners, such as screws, nuts, etc., loose, may also lead to leakage.

    (4) Installation is not in place: the installation of the ball valve is not in place can also lead to leakage.

    For the above reasons, the following measures should be taken respectively to exclude:

    (1) Replacement of sealing surface: If the sealing surface of the ball valve is damaged due to long usage time, it should be replaced.

    (2) Replacement of sealing gasket: If the sealing gasket of the ball valve is aging and loose, it needs to be replaced.

    (3) Fastener tightening: Check whether the fasteners are loose, if so, they need to be tightened.

    (4) Reinstallation: If the ball valve is not installed properly, it needs to be reinstalled.

NO3  Leakage

    Leakage of ball valves is also one of the common failures, the cause may be:
    (1) Gasket aging: when the ball valve gasket is aging and loose, it may also lead to leakage.

    (2) Damaged seals: such as O-ring, packing and other damage, can also lead to leakage.

    (3) Ball deformation: when the ball deformation, can also lead to leakage.

    For the above reasons, the following measures should be taken to exclude:

    (1) Replacement of gasket: If the gasket of the ball valve is aging and loose, it needs to be replaced.

    (2) Replacement of seals: such as O-ring, packing and other damage, also need to be replaced.

    (3) Replace the ball: If the ball is deformed, it needs to be replaced to solve the leakage problem.

Summarize:

    the above is the ball valve common faults and troubleshooting methods, if there is a ball valve failure, should take timely measures to exclude, in order to ensure that the ball valve can operate normally, to ensure the smooth progress of industrial production. At the same time, the regular maintenance of the ball valve is also very important to avoid production accidents.