Classification of CNG compressors

The compressor equipment of CNG filling station is different according to its service environment,
It can be divided into three categories: CNG master station compressor, CNG standard station compressor and CNG sub station compressor.
CNG master station is built in the place where there are natural gas pipelines passing through, and it takes gas directly from natural gas pipelines.
The compressor of CNG sub station inputs natural gas through pipeline, and after pressurization in the station, it is directly or stored in fixed gas storage bottle group (well) to fill CNG vehicle with compressed natural gas.
The purpose of CNG standard station compressor is to import natural gas through pipeline, and then directly or store it into fixed gas storage bottle group (well) after pressurization in the station to fill CNG vehicle with compressed natural gas.
These are the three classifications of CNG compressors.

Vacuum pump used in SEM