Reasons for installation leakage of double flange electric ball valve Double flange electric ball valve is mainly used for the connection of valves, pumps and other accessories. The latest standard of this product is GB/T12465-2007. The double flange electric ball valve has reasonable structure, advanced processing and manufacturing technology, and perfect welding. The main reasons for water leakage of double flange electric ball valve during use are installation problems. The double flange electric 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 make the rubber ring of electric ball valve loose, so as to facilitate the free extension of electric ball valve products, After the flanges on both sides, valves and counter flanges are fixed, tighten the middle bolts diagonally after the length is fixed to prevent leakage of the electric 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.