Gas valve use

Gas valves are widely used for a variety of city gas pipeline network system media pipeline gas, liquefied petroleum gas, natural gas and oxygen. Drive in the form of a manual, worm gear, electric, pneumatic, hydraulic, electro-hydraulic actuator linkage, enabling remote control and automation.
Valve - used to automatically reduce the pipeline and the gas pressure inside the equipment. Department of the gas passes through the gap between the Gas Burner Safety Valve, resulting in resistance caused by pressure loss, to achieve the purpose of decompression.
According to use, depending on the purpose of the valve can be divided into:
1. Breaking use: Used to connect or disconnect the gas pipeline, such as the cut-off valve, gate valve, ball valve, butterfly valve.
2. backstop use: to prevent backflow of gas, such as check valves.
3. Adjust with: used to adjust the gas pressure and flow regulating valve, pressure reducing valve.
The assignment: to change the flow of the gas, gas distribution, such as the three cocks, dispensing valve, the slide valve.
Press the drive, depending on the driving mode can be divided into:
1. Manual: With hand wheels, handles, levers or sprockets, etc., there are human-driven, when the drive is larger torque reduction device equipped with worm gear.
2. Electric: With the motor or other electrical device to drive.
3. pneumatic; with compressed air to drive.
Press and pipeline connection points, according to the valves and pipe connections can be divided;
1. flanged valves: valve with flanges, valves and pipes are flanged.
2. The threaded connection valves: a valve body with an internal thread or external thread, and the pipe valve with a threaded connection.
3. welded connection Range Top Burner Valve: Body with weld, and pipeline valve with solder connections.
4. clamp connection valve: the valve body with the jaws, and pipeline valve with clamp connections.
5. ferrule connection valve: A valve sleeve and the pipe connections.