⑴ The loaded the valve into the pipeline. Any end of the valve can be mounted on the upstream end. Valves driven with handles can be mounted anywhere on the pipe.
However, a ball valve with a gearbox or pneumatic driver should be mounted upright, that is, mounted on a horizontal pipe, and the drive is above the pipe.
⑵ The valve flange and the pipeline flange are fitted with gaskets according to the piping design requirements.
⑶ The bolts on the flange need to be symmetrical, successive and evenly tightened. ⑷ Connect pneumatic pipelines (when pneumatic drives are used).
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