How to do pressure testing for wafer butterfly valve?-Belo Valve

For the strength test of the wafer type butterfly valve, first put the assembled butterfly valve on the pressure testing plate,then open the butterfly plate, inject the medium to a specific value, check whether the valve body is sweating or leaking; 

For the sealing performance test of the wafer butterfly valve, the test medium should be injected from the flow end of the medium. The disc should be opened, the other end should be closed, and the injected pressure should reach the specified value, after confirming that there is no leakage at the packing area and other sealing areas, close the disc, open the other end, the butterfly valve will be qualified if there is no leakage at the sealing area of the disc; 

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