There are three steel valve cover to connect the design of body structure. The first one is the body cover bolts connecting steel valve, according to the design of this valve to connect the form, the valve body and valve cover with bolt connections, spiral wound gasket seal, the advantages of easy maintenance. Connecting the second body welding steel valve cover, according to the design of such a connection form of valves, valve cover their body with all-welded seal, the advantages of no leakage outside. The third is a pressure tight valve forged steel valve cover, according to the design of this valve to connect the form, the valve body and valve cover to connect with Lo mosquito, internal pressure from the sealing ring seal, the greater the advantage of internal pressure, the better the sealing performance. You can choose according to the actual situation of our valves reasonable.
