The eccentric hemispherical valve must be tested before use, so do you know how to detect the eccentric hemispherical valve? Here we take a look! How to check the quality of eccentric hemispherical valves? The application of buried eccentric hemispherical valves in various fields is also becoming more and more extensive. There are many manufacturers of buried eccentric hemispherical valves on the market, but the quality is often uneven, so How should consumers judge the quality of a buried eccentric hemispherical valve? The following is the two tricks taught by Ball Secret Valve Co., Ltd. The method to judge the quality of the eccentric hemisphere valve.
The first measure, we can check the quality of the buried eccentric hemispherical valve through a strength test. First of all, we can weld high pressure-dull caps on the sleeves of both sides of the buried eccentric hemispherical valve, open the valve to 45 degrees Celsius, and then inject water into the ball valve through the pressure test valve on the sleeve to increase the pressure to the nominal value of the ball valve. 1.5 times the pressure, hold the pressure for 15 minutes, if there is no leakage, then the ball valve is qualified.
The second measure, we can also test the quality of the buried eccentric hemispherical valve to check its quality. The specific operations are as follows: First, close the ball, then inject nitrogen from the sleeve pressure test valve into the ball valve until the pressure rises Up to 1.1 times of the nominal pressure of the ball valve, then the middle cavity pressure relief valve is connected to the hose and passed through the water container for testing. The insertion depth is 1cm. If no bubbles are generated within five minutes, the product is qualified.
