Pressure Test Method Of Butterfly Valve

The strength test of the pneumatic butterfly valve is the same as that of the globe valve. The sealing performance test of the butterfly valve should introduce the test medium from the medium inflow end, the butterfly plate should be opened, the other end closed, and the injection pressure should reach the specified value; after checking that there is no leakage in the packing and other seals, close the butterfly plate, open the other end, and check the butterfly plate No leakage at the seal is qualified. The butterfly valve used to adjust the flow can not be tested for sealing performance.