Manufacturing process of ductile iron copper core gate valve:

The valve body is made of ductile iron casting, and the inside and outside of the valve body are coated with epoxy resin to prevent rusting and corrosion of the valve body. As the whole body is non-toxic drinking water standard, it can also be consumed raw. The sealing surface of the valve body is made of copper alloy welding, which has good wear resistance and ductility, thus ensuring good sealing of the entire valve during use. The valve plate also adopts copper alloy welding technology, which is not prone to jamming during opening and closing. The production process is as follows:
Casting → Machining → Sand Cleaning → Manual Grinding → Double sided Aluminum Bronze Welding of Valve Body and Disc Sealing Surface →
Spraying → Machining of valve body and disc sealing surface → Grinding → Assembly → Pressure testing → Packaging