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Pneumatic pipe ball valve installation method
1, the preparation before installation: (1) Pneumatic pipeline valve before and after the pipeline is ready. Before and after the pipeline should be coaxial, two flange sealing surface should be parallel. The pipe should be able to withstand the weight of the pneumatic pipe ball valve, otherwise the pipe must be equipped with appropriate support. (2) purge the pipeline before and after the pipeline clean, clear the pipeline of oil, welding slag and all other impurities. (3) check the pneumatic pipe ball valve logo, pneumatic pipe valve to find out intact. Open the valve fully closed several times to confirm its normal operation. (4) Remove the protective parts on the connecting flanges on both ends of the pneumatic pipe ball valve. (5) Check the valve hole to remove possible dirt, and then clean the valve hole. Even small particles of foreign matter between seat and ball may damage seat sealing surface. 2, installation: (1) the valve installed on the pipeline. Either end of the valve can be installed on the upstream side. The handle-actuated valve can be mounted anywhere on the pipe. However, pneumatic line ball valves with gearboxes or pneumatic drives should be mounted upright, ie mounted on a horizontal pipe with the drive above the pipe. (2) between the valve flange and pipeline flange installed according to the pipeline design requirements gasket. (3) The bolts on the flange should be symmetrical, one after another, evenly tightened. (4) Connect the pneumatic line (with pneumatic actuator). 3, the installation of the inspection: (1) Operate the drive Kai, pneumatic valve closed several times the ball valve should be flexible without astringent, confirmed its normal operation. (2) according to the pipeline design requirements on the pipe and pneumatic pipe valve flange sealing surface between the performance check.