... Silent type Specifications for CNG Compressor:D-0.28/(30~76)-250Medium: Pure natural gasMode: D-type little-lubrication reciprocating piston modeStage ... ) 1m from enclosureOil pump pressure: 2~4 bar (G)Transmission mode: coupling directlyMain motor: 75KW, 740 r/min, 380V, 50 Hz ... , d II BT4Oiling motor: 0.55 kW, 380V, 50Hz, d II BT4Weight:Size: 4000X2400X2700mmLife of suction ...