Procurement of split type pneumatic wafer type fluorine lined ball valve (3) Inspection after installation
① Operate the driver to open and close the pneumatic ball valve for several times, which should be flexible without stagnation, to verify that it works normally.
② The design of connecting pipeline requires that the sealing performance of the flange joint surface between the pipeline and the spherical cavity should be checked
Selection, Inspection and Acceptance of Pneumatic Butterfly Valves for Petrochemical Pipelines III. Precautions for Corrugated Pneumatic Butterfly Valves
The pneumatic butterfly valve shall be set at the junction of the valve in front of the tank and the pipeline, so as to form a soft connection between the tank and the pipeline.
When the process flow of the pipeline in front of the tank is under pressure, the control valve shall be set when the pneumatic butterfly valve is installed.
When installing pneumatic butterfly valve, avoid welding slag splashing on the hose.
The method of tightening flanges and bolts shall not be used to eliminate device deflection.
The height from the back of the pneumatic butterfly valve device to the natural air shall be greater than its lateral displacement compensation.
No bracket or support shall be set on the pneumatic butterfly valve.
