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Functional failure problems of control valves are problems related to the equipment itself and are functional in nature. Control valves have the most complex functional problems, the following discussion focuses on the diagnosis of functional problems.

Ball valve is the most widely used mechanical product. It is mainly composed of valve body, valve seat, ball, and transmission device,etc.

The check valve must be installed at the pump outlet, in a position before the outlet control valve, in order to service the check valve.

In recent years, with the increase of oxygen consumption, the large users of oxygen are using oxygen pipelines to transport.