Classification and composition for gate valves

The gate valves have more types, different types of this valves can be used in different environments,we can choose flat gate valves 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 knife gate valves when we need that used in pulverized coal slurry.


1. different types have different parts, but some types 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 materials of the gate valves can be WCB,WC6,WC9,LCB,LF2.A105,SS304,SS316,CF8,CF8M and others.