A gate valve is a valve that opens by lifting a round or rectangular gate/wedge out of the path of the fluid. The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar, so gate valves are often used when a straight-line flow of fluid and minimum restriction is desired.
It is well known to us that a forged steel gate valve is a gate valve that uses forged steel as its main material to make the gate valve stronger. And forged steel is made by the forged processing. There are three types of forge; they are coal, coke, charcoal forge.
A forge mainly uses bituminous coal, industrial coke or charcoal as the fuel to heat metal. The designs of these forges have varied over time, but whether the fuel is coal, coke or charcoal the basic design has remained the same. A forge of this type is essentially a fireplace designed to allow a fire to be controlled so that metal introduced to the fire may be brought to a malleable state or to bring about other metallurgical effects hardening, annealing, and drawing temper as examples.
Generally speaking, a metal that is forged has better physical property. When it comes to specific forged steel, it depends on the originate material.
The form of three types of forged steel gate valve covers design.
The first one is the bolted-bonnet gate valve cover, according to the form of this design of valve design, the valve body and valve cover with bolt nut connection, spiral wound gasket (316 folders manufacturing flexible graphite) seal. The special requirements of customers can also connect the metal ring.
The second design is a form of welding-type valve cover, according to this design form of the valve, the valve body and valve cover with threaded connection, all-welded seal. Customers with special requirements also can be connected through welding.
The third is self-sealing valve cover, according to the form of this design of valve design, the valve body and valve cover with threaded connections, the internal pressure from Armillariella sealed.

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