Detailed Product Description

1.     General Description

   CNG Compressor Model SF-4/0.017-0.035-20 is a natural gas pressuring device and is mainly used to compress and fill the family-use natural gas to cars, i.e. pressuring the family-use micro-pressured natural gas to 20Mpa (2900PSI) with the gas-filling time for 2-4 hours each time. It is small in dimensions, light in weight, superior in performance, safe and reliable in operation, durable and economic in application.

Model explaination

Compressor model         S, fan-type

Cooling model            F, air

Displacement             4 Nm3/h

Intake pressure            0.017-0.035 bar (0.25-.05PSI)

Discharge pressure         200 bar (2900PSI)

2.     Main technical parameters

3.  main structure

This compressor is mainly composed of compressor set, explosion-proof motor, control box, cooling fan, oil/gas separator, pipeline, safety components and frame, etc. At first, the gas runs into the 1st stage cylinder through the gas intake pipe. After the 1st stage compression, the gas runs to the 1st stage cooler and after cooling runs to the 2nd stage cylinderg. Thus, after passing through the 3rd stage cylinder and 4th stage cylinder, the pressure of natural gas will be raised to 20MPa. Finally, the compressed natural gas is discharged through the high pressure de-oil filter where the excessive residual oil will be filtered out and fed through the high-pressure hose to fill cars. The compressor is integrally explosion-proof and has the discharge pressure protection. If filling to the setting pressure, the compressor will automatically stop filling. In addition, it fits a safety valve to prevent overpressure.