Working principle and material types of gate valves

There are many domestic manufacturers of gate valves, and the connection sizes are mostly not uniform. Mainly divided into the following categories:

The general category mainly based on JB/T2203-1999 "Structural Length of Gate Valves". At present, most domestic safety valve manufacturers design and produce according to this standard. Working principle of manual gate valve:

Rotate the handwheel to lift or lower the valve plate connected to the valve stem through the thread of the handwheel and valve stem, achieving the function of opening and closing.The main gate valves product names of China gate Valve Network include:Electric Wafer Knife-shaped Gate Valve,Electro-hydraulic Wafer Knife-shaped Gate Valve,Electric Slurry ValveElectric Flange Gate Valve,Fire Special Signal Relisient Seat Seal Gate Valve,Fire Special Rising Stem Resilient Seat Seal Gate Valve

According to the classification of shell/main body materials, gate valves can be divided into:

1. Metal material valves: such as carbon steel valves, alloy steel valves, stainless steel valves, cast iron valves, titanium alloy valves, Monel valves, copper alloy valves, aluminum alloy valves, lead alloy valves, etc.

2. Metal valve body lined valves: such as rubber lined valves, fluorine lined valves, lead lined valves, plastic lined valves, and enamel lined valves.

3. Non metallic material valves: such as ceramic valves, glass valves, and plastic valves.

Do you still need to know or purchase the following gate valve products: