DIN F4 metal seated gate valve

Hard sealed gate valves, also known as protective gate valves, are used in heating,civil air defense engineering, and related pipeline networks. The valve body is made of ductile iron and coated with epoxy resin to prevent rusting and corrosion. As it is non-toxic and suitable for drinking water, it can also be used for drinking. The sealing surface of the valve body is made of copper alloy welding, which has good wear resistance and ductility, ensuring good sealing during use. The valve plate also uses copper alloy welding technology, which is less likely to cause jamming during opening and closing.