When installing the plug valve, in order to prevent damage to the plug valve, and to ensure that give full play to the working performance of the plug valve, should pay attention to the following four points: 1. To ensure that the valve is open. First pipe heating. As much heat is transferred from the pipe to the stopcock. Avoid prolonging the plug valve heating time. 2. Use a gauze or wire brush to clear the pipe and the cutting area to make the metal surface shine brightly. It is recommended not to use steel wool. 3. First along the vertical pipe cutting, and trim, remove burrs, measuring diameter. 4. Apply flux to the outside of the pipe and to the inside of the weld cap, and the flux must completely cover the weld surface. Use solder sparingly. Search Keyword: More Valve Technical Articles