Description The motor directly drives the compressor to make the crankshaft rotate and drive the connecting rod to make the piston move back and forth, causing the change of cylinder volume. Due to the change of the pressure in the cylinder, the air enters the cylinder through the air filter (muffler) through the intake valve. During the compression stroke, due to the reduction of the cylinder volume, the compressed air passes through the exhaust valve and enters the air tank through the exhaust pipe and check valve. When the exhaust pressure reaches the rated pressure of 0.7MPa, it is automatically stopped by the pressure switch. When the pressure of the air storage tank drops to 0.5-0.6Mpa, the pressure switch is automatically connected and started. Advantages The ZW type CNG compressor is oil free. It's applied in daughter station. Product features The first special compressor type for CNG filling station in China, which covers a small area and runs steadily. Vertical reciprocating piston compressor, four cranks into 90 degrees each other, running smoothly. The compressor cylinder is designed with oil-free lubrication structure and operates without oil lubrication. Energy-saving non-balanced compressor technology and high-pressure packing sealing technology are adopted. Compressor unit skid-mounted, convenient transportation, simple installation. Technical parameters S/N Model Inlet pressure (Mpa) Power (KW) Capacity(Nm3/h) Cooling style 1 ZW-3.6/1-250A-JX 1 110 420 water cooling 2 ZW-4.4/1-250-JX 1 110 470 water cooling 3 ZW-5/1-250D-JX 1 132 533 water cooling 4 ZW-4.8/1.25-250-JX 1.25 132 580 water cooling 5 ZW-3.8/1.4-250-JX 1.4 110 490 water cooling 6 ZW-3.56/1.5-250-JX 1.5 110 490 water cooling 7 ZW-4.35/1.5-250D-JX 1.5 132 595 water cooling 8 ZW-5/1.5-250B-JX 1.5 160 720 water cooling 9 ZW-3.8/2-250-JX 2 132 620 water cooling 10 ZW-4.5/2-250D-JX 2 160 750 water cooling 11 ZW-4.95/2-250C-JX 2 185 870 water cooling 12 ZW-3.3/2.4-250-JX 2.4 132 640 water cooling 13 ZW-3.3/2.5-250B-JX 2.5 132 645 water cooling 14 ZW-3.7/2.5-250D-JX 2.5 160 780 water cooling 15 ZW-4.35/2.5-250B-JX 2.5 185 900 water cooling 16 ZW-2.5/3-250K-JX 3 110 550 water cooling 17 ZW-3/3-250-JX 3 132 660 water cooling 18 ZW-3.65/3-250B-JX 3 160 800 water cooling 19 ZW-4.25/3-250C-JX 3 185 930 water cooling 20 ZW-4.4/3-250A-JX 3 200 1005 water cooling 21 ZW-2.7/3.5-250A-JX 3.5 132 680 water cooling 22 ZW-3.2/3.5-250-JX 3.5 160 830 water cooling 23 ZW-2.1/4-250A-JX 4 110 580 water cooling 24 ZW-2.5/4-250F-JX 4 132 705 water cooling 25 ZW-3/4-250C-JX 4 160 850 water cooling 26 ZW-3.65/4-250E-JX 4 185 985 water cooling 27 ZW-1.45/5-250-JX 5 90 500 water cooling 28 ZW-1.9/5-250B-JX 5 110 615 water cooling 29 ZW-2.2/5-250E-JX 5 132 740 water cooling 30 ZW-2.76/5-250-JX 5 160 895 water cooling 31 ZW-3.3/5-250-JX 5 200 1120 water cooling 32 ZW-1.64/6-250-JX 6 110 640 water cooling 33 ZW-1.9/6-250B-JX 6 132 770 water cooling 34 ZW-2.5/6-250-JX 6 185 1080 mixed cooling 35 ZW-3.0/6-250C-JX 6 200 1170 water cooling 36 ZW-2.2/7-250-JX 7 160 980 water cooling 37 ZW-1.36/8-250-JX 8 110 690 water cooling 38 ZW-1.7/8-250-JX 8 132 830 water cooling 39 ZW-2.0/8-250D-JX 8 160 1010 water cooling 40 ZW-1.2/10-250-JX 10 110 740 water cooling 41 ZW-1.4/10-250A-JX 10 132 890 water cooling 42 ZW-1.91/10-250-JX 10 185 1250 mixed cooling 43 ZW-1.35/12-250-JX 12 132 930 water cooling 44 ZW-1.55/12-250-JX 12 160 1130 water cooling 45 ZW-1.45/14-250-JX 14 160 1190 water cooling 46 ZW-0.98/15-250B-JX 15 110 830 water cooling 47 ZW-1.0/16-250-JX 16 132 1010 water cooling 48 ZW-1.65/16-250-JX 16 185 1440 water cooling 49 ZW-0.94/20-250-JX 20 132 1110 mixed cooling 50 ZW-1.15/20-250-JX 20 160 1350 mixed cooling 51 ZW-1.3/20-250A-JX 20 185 1570 water cooling