Reasons for installation leakage of double flange pneumatic ball valve Double flange pneumatic ball valve is mainly used for connection of valves, pumps and other accessories. The latest standard of this product is GB/T12465-2007. The double flange pneumatic ball valve has reasonable structure, advanced processing and manufacturing technology, and perfect welding. The main reasons for the water leakage of the double flange pneumatic ball valve during use are installation problems. The double flange pneumatic ball valve is adjusted at a fixed length when leaving the factory. During installation, it needs to be adjusted according to the site length. Generally, the middle bolt is loosened to loosen the rubber ring of the pneumatic ball valve to facilitate the free extension of the pneumatic ball valve, After the flanges on both sides, valves and counter flanges are fixed, tighten the middle bolts diagonally after the length is fixed to prevent the leakage of pneumatic ball valve.
The common problem is that the middle bolt is not tightened and leaks, or the bolts are not tightened in a diagonal sequence, resulting in uneven bolt tightness and leakage, and that the rubber ring is not placed in place during the process of the upper middle bolt, resulting in rubber ring damage and leakage.