Classification and composition for gate valves

The gate valves have more type, different type of this valves can be use in different environments,we can choose flat gate valve when we need this gate used in natural gas, we need choose wedge gate valves when we need that used in drains or chemical industries, we need choose the knif gate valves when we need that used in pulverized coal slurry.

1. different type have different parts, but some type of the gate valves are have the same parts.the parts have disc,stem nut , handlewheel,body,bonnet,seat ring,gaskets ,packing and packing gland. the seat can be soft seal or metal to metal seal..

2.The material of the gate valves can be WCB,WC6,WC9,LCB,LF2.A105,SS304,SS316,CF8,CF8M and others.