​The gas pressure regulating (metering) box is a system equipment that supplies gas to civil or industrial users, boilers, gas stoves, etc. in a certain area after filtering, pressure regulating, (metering).

​This equipment is mainly used for medium and low pressure gas transmission and distribution, especially for residential areas, direct combustion equipment and other gas supply.

Gas metering is the measurement and recording of the amount of gas passing through the pipeline. The device for measuring gas is called a gas meter or gas flow meter, which is used to accumulate the volume or mass of gas passing through the pipeline.

The air-temperature vaporizer uses natural convection of air to heat the low-temperature liquid in the heat exchange tube, so that it can be completely evaporated into gas

The cryogenic liquid is discharged from the cryogenic liquid storage tank by the pressure of the storage tank itself, flows through the cryogenic liquid pump for pressurization, enters the vaporizer to be vaporized into gas, and then is filled into the cylinder through the bus.

The air-temperature vaporizer uses the natural convection of air to heat the low-temperature liquid in the heat exchange tube to completely evaporate it into gas. It is a high-efficiency and energy-saving heat exchange equipment that integrates air-temperature and heating vaporization functions and can replace heated vaporization products.

​City gas gate station is a receiving station for natural gas entering the urban pipeline network from long-distance pipelines. It is also an urban distribution station.

Gas equipment and pipeline networks are important facilities to ensure reliable gas supply in cities. They transport combustible media and are distributed in many places, involving the gas consumption of thousands of households.