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A brief introduction of pneumatic valve operation and maintenance
Operation and use 1) Make sure that the piping and valves have been flushed before operation. 2), the valve operation according to the size of the actuator input signal to promote stem rotation is completed: forward rotation 1/4 turn (900), the valve is turned off. The valve opens when rotated 1/4 turn (900) in the reverse direction. 3) The valve is open when the direction arrow of the implementing agency is parallel to the pipeline; the valve is closed when the indicating arrow is perpendicular to the pipeline. Repair has a long service life and maintenance-free period, will depend on the following factors: normal working conditions, to maintain a harmonious temperature / pressure ratio, and reasonable corrosion data.