The natural gas valve is open vertically upwards and closed horizontally. The following figure natural gas valve is closed state, you can also see the valve handle on the switch instructions.

Gas valves are widely used in urban gas supply network system gas, liquefied petroleum gas, natural gas, oxygen and other gas media pipeline; drive form of manual, worm gear drive, electric, pneumatic, hydraulic, electro-hydraulic linkage actuators, remote control and automation operations can be realized.

Expanded

Functions of the main facilities of natural gas

1. Valve shaft: installation of the device to control the valve of the underground gas pipeline.

2. Riser master valve: usually installed on the riser in the kitchen on the first floor of the building to control all users of the riser.

3. Household valve: also known as the valve before the meter, is the household gas source switch, placed in front of the gas meter, used for natural gas on and off.

4. Gas meter: IC card smart gas meter, user gas consumption measurement device.

5. Ball valve in front of the stove: located behind the meter, the control valve in front of the gas stove, which should be closed at the end of each gas consumption.

6. IC card: easy for users to purchase gas.

Reference: