High Pressure Ball Valves Manufacturers introduce the pressure test method of ball valve:

1. Floating ball valve sealing test: put the valve in a half-open state, introduce the test medium at one end, and close the other end; rotate the ball several times, open the closed end when the valve is in the closed state, and check the sealing performance at the packing and gasket at the same time , there must be no leakage. The test medium is then introduced from the other end and the above test is repeated.

2. Sealing test of the fixed ball valve: before the test, rotate the ball several times without load, the fixed ball valve is in the closed state, and introduce the test medium from one end to the specified value; check the sealing performance of the introduction end with a pressure gauge, and use the accuracy of the pressure gauge 0.5 to 1, the range is 1.6 times the test pressure. Within the specified time, if there is no depressurization phenomenon, it is qualified; then introduce the test medium from the other end quality, repeat the above test. Then, put the valve in a half-open state, close both ends, and fill the inner cavity with the medium. Check the packing and gasket under the test pressure, and there must be no leakage.

3. The three-way ball valve should be tested for tightness at each position.

Through the above introduction, Wholesale Ball Valves Exporter hopes that you can simply refer to the content of this article in future use.