Popularize the basic knowledge of gas valve:

Gas valve is a new type of safety supporting device for gas pipeline engineering. It is used to cut off, connect and regulate the gas in the pipeline, with good control characteristics and closing sealing performance. It is applicable to urban gas, liquefied petroleum gas, natural gas, oxygen and other gas medium pipelines. Gas valves are widely used in urban gas supply network system gas, liquefied petroleum gas, natural gas, oxygen and other gas medium pipelines.

The gas valve has a wide range of uses and a wide variety of classification methods. In general, it can be divided into two categories:

The first type of automatic valve is the valve that acts by itself depending on the ability of the gas itself. Oxygen quick shut-off valve, such as check valve, regulating valve, pressure reducing valve, etc.

The second type of drive valve: valve operated by manual, electric and pneumatic means. Such as gate valve, stop valve, throttle valve, butterfly valve, ball valve, plug valve, etc.

To use gas safely, residents must first know how to use various gas valves at home. There are three types of valves that need to know how to use safely.

The first type of inlet valve: refers to the main valve of the unit riser, the stop valve on the gas riser of high-rise residential buildings, and the main valve in the stairwell.

Main valve of gas valve

The main valve is the main switch, which is the last "safety line" to ensure the use of residential gas. In other words, the role of the main valve is more reflected in the handling of emergency measures. The composition of modern gas pipeline and gas system is extremely safe. Only when the components other than the main valve appear, can they be stopped by the main valve. If users often open and close the main valve, it may cause wear on the main valve and reduce the performance of the main valve. Moreover, it is difficult to detect the failure of the main valve. Once there is an accident in other places, the residents will not only be difficult to detect in time, but also lose the most critical "last resort".

The second type of pre-meter valve refers to a valve in front of the gas meter after entering the user's room. For users who have not used gas for a long time, please close the pre-meter valve. When the valve in front of the meter or the gas facilities in front of the meter fail or other conditions occur, the valve in front of the meter shall be closed and the repair call shall be made in time.

Gas valve gauge front valve

The third type of valve in front of the stove is the control valve between the gas pipeline and the rubber hose of the stove. After using natural gas, the valve in front of the stove must be closed. If the valve in front of the stove breaks down, it should be reported for repair in time.

Front valve of gas valve range

The valve in front of the stove and the switch of the stove should be closed in time, which is believed to be a problem that every family will not ignore. However, the main valve and hose in the gas system are often ignored. Will such neglect result in accidents? In order to use gas more carefully, some families often close the main valve together. Is this safer? Experts pointed out that every part of the gas system was designed after full scientific argumentation, so it is unscientific to omit necessary steps or take redundant measures, which will lead to some unsafe problems.

More common sense of safe use of gas

1. Although pipeline natural gas is known as the clean energy of the 21st century, that is, it has the reputation of high efficiency, environmental protection and economy, but it is combustible gas after all, with the risk of combustion and explosion, so people should prevent gas leakage and fire when using natural gas.

2. When natural gas is burned safely, it needs a lot of oxygen. If the combustion is incomplete, it will produce toxic carbon monoxide gas. Therefore, indoor air circulation should be maintained when using gas.

3. In a closed space, the mixture of leaked gas and air will reach the gas explosion limit and form explosives. Therefore, gas leakage shall be prevented. In case of gas leakage, the front valve of the indoor meter shall be closed in time,

Open the doors and windows for air exchange. It is strictly forbidden to use electrical equipment. Call the gas company in the outdoor safe area. In serious cases

Evacuate from the site to ensure personal safety.