The most concerned issue for users is how to buy genuine Gaimi pneumatic diaphragm valves. Today, we will teach you three methods. By observing these three details, you will know how to distinguish themGaimi pneumatic diaphragm valveIt's good or bad.
1. We can verify the quality of buried fully welded ball valves through a strength test. Firstly, we can weld high-pressure caps on the sleeves on both sides of the buried fully welded ball valve. After opening the valve to 45 degrees Celsius, we can inject water into the ball valve through the pressure test valve on the sleeve, increase the pressure to 1.5 times the nominal pressure of the ball valve, and hold it for 15 minutes. If there is no leakage, then the ball valve is qualified.
2. We can also test the quality of the buried fully welded ball valve by testing its tightness. The specific operation is as follows: first, close the ball, and then inject nitrogen into the ball valve through the pressure test valve on the sleeve until the pressure rises to 1.1 times the nominal pressure of the ball valve. Then, connect the pressure relief valve in the middle chamber to a water container for testing. The insertion depth is 1cm. If no bubbles are generated within five minutes, the product is qualified.
3. The interior of the packaging box should generally contain relevant information such as the product's certificate of conformity and user manual. When purchasing an Emton chain hoist, we must carefully inspect these to see if they are qualified products.
When purchasing a Gaimi pneumatic diaphragm valve, you can check the above three details to determine if the product you are purchasing is correct. If you have any other questions, please feel free to contact our staff at any time.