Pneumatic valve installation and maintenance

。 Pneumatic valve installation) , take off the protective cover on both sides of the flange end, under the conditions of valve fully open to wash clean. ） , pneumatic valve before installation should be in accordance with the provisions of signal, Electricity or gas) The engine test ( Prevent because of transportation vibration impact performance) , qualified rear can install. ) Before, preparation, and pipeline connection, you must wash and clean the pipe residual impurities ( These substances may damage the seat and) 。 ) , during the installation, please don't use valve actuator part as a lifting of the lifting point, in order to avoid damage the actuator and accessories. 。 ) , pneumatic valve should be installed in horizontal or vertical direction. ) Near, installation of pipe with low or bear the phenomenon of external force, can use a pipe support or support to eliminate the deviation of pipelines. ) After, and pipeline connection, please use specified torque cross locking bolt flange connection. The operation of the pneumatic valve and use) Must be confirmed before operation, piping and valves have been washed. ) And the operation of the pneumatic valve actuator input signal size turns the valve stem complete: positive rotation/circle ( °) When the valve is shut off. Reverse rotation/circle ( °) When the valve opens. ) , when executing agency indicating arrow direction parallel to the pipeline when the valve is open; Indicating arrow and vertical pipeline, the valve is closed. 。 The maintenance of pneumatic valve pneumatic valve has a longer service life and maintenance free period, will depend on several factors: the normal working conditions and maintain harmonious temperature/pressure ratio, and the reasonable corrosion data