1, before installation preparation: ( 1) Pneumatic pipeline ball valve before and after the line has been ready. Before and after the pipe shall be concentric, two flange sealing surface should be parallel. Pipe should be able to bear the weight of the pneumatic pipeline ball valve, otherwise the line must be equipped with appropriate support. ( 2) Get rid of pipeline purging before and after the valve clean, oil pipe, welding slag, and all other impurities. ( 3) Check the pneumatic pipeline ball valve, find out the pneumatic pipeline ball valve is in good condition. The valve is fully open full closed several times to confirm they work. ( 4) Down on the other side of pneumatic pipeline ball valve on the connecting flange protection. ( 5) Check valve holes eliminate possible contaminants, and then clean the valve hole. Between the seat and the ball even if only small particles of foreign matter may also damage the valve seat sealing surface. 2, installation: ( 1) The valve is installed on the pipeline. Any end of the Industrial Valves can be installed at the upstream end. can be installed on the pipeline driven by the handle. But with a gear box or pneumatic actuator pneumatic pipeline ball valve should be installed upright, is installed in a horizontal pipe, and drive in the pipeline. ( 2) flange and pipe flange gasket fitted according to the requirements of pipeline design. ( 3) Flange bolts should be symmetrical, successive, evenly tighten. ( 4) Pneumatic pipe connection ( Using pneumatic drive) 。 Inspection: (3, after installation 1) Drive rev. Several times, her breath pipeline ball valve operation, should be flexible without sluggish acerbity, confirms that they work. ( 2) According to the requirements of pipeline design of pipeline between the pneumatic pipeline ball valve and the flange joint surface of the examination of the sealing performance.
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