PVC compact ball valve is mainly used to truncate or connect the medium in the pipeline, can also be used for fluid regulation and control, compared with other valves, has the following advantages. Small fluid resistance, ball valve is a small fluid resistance of all valves, even reduced diameter ball valve, its fluid resistance is quite small.
PVC compact ball valve installation, should be regularly checked, the main inspection items: sealing surface wear. Trapezoidal thread wear of stem and stem nut. Whether the filler is out of date and invalid, if damaged, it should be replaced in time. Sealing performance test should be carried out after valve repair and assembly. Gate valve in maintenance must be in the closed state, to ensure that grease along the sealing ring full of sealing groove, if open, sealing grease will directly fall into the flow channel or valve chamber, resulting in waste. PVC compact ball valve maintenance is generally in an open state, special circumstances choose to close the maintenance. Other valves should not be open.
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