Compressed natural gas is to purify wellhead natural gas and compress it into gasified natural gas (CNG) with pressure greater than or equal to 10Mpa but less than 25Mpa, and then store and transport it at high pressure to the use place. Due to the high storage pressure of compressed natural gas (CNG), it needs to go through multi-stage decompression and heat exchange in the use process, and then after metering and odorizing, it can be input into the pipe network for all kinds of users.

CNG pressure regulating and metering equipment refers to a skid-mounted device with full functions which is used to discharge, heat exchange, pressure regulation, metering, and odorize the CNG transported by tank truck and send it into the urban gas transmission and distribution pipeline.