CNG HD 20 - Coltri - CNG High Pressure Compressor - 330 l/min, 20 m3/h
CNG HD 20 - 330 l/min
Designed for medium-sized filling stations, CNG HD series compressors can recompress up to 250 bar of natural gas and biomethane previously treated and filtered from the supply line. Four stages of compression and low rotation speeds make the machine suitable for professional use. The remote control panel (5-meter cable) provides all the indications to operate in maximum safety.
There are two installable pumping units (CNG 20 and CNG 24), with different flow rates, both powered by three-phase electric motors. The standard equipment includes a 4.5 m high-pressure tube and delivery gun with NGV1 direct drive suitable for filling pressures of up to 250 bar. The safety pressure switch for intake gas suction, autostop and the double filtering system with Hyperfilter are always standard.
Coltri Compressors
Coltri Compressors is a brand of high pressure compressors for breathing air, CNG and technical gases. Coltri are present in more than 60 countries with unmistakable quality of Made in Italy, the versatility of our products, with many qualities: light, sturdy and compact, economical in use, durable and easy to maintain.
Coltri are the only ones to date to use high quality materials produced in Italy with high precision machine tools, that is the same material used in the aeronautical field and worked entirely in internal workshop, being a leading company in the diving sector for 50 years.
CNG compressor units are perfect for natural gas refuelling from the grid, for small fleets, taxis, forklifts, small trucks.
Machine Parts/Components
2. Control pannel
3. Gases pressure gauge
4. Oil pressure gauge
5. Refill HP pipe coupling
6. Condensate drain valve
7. Oil level indicator
8. Oil drain valve
9. Molecular screen gas filter
10. ATEX motor
11. Compressor
12. Gas filter
13. First stage
14. Second stage
15. Third Stage
16. Fourth stage
17. Monobloc
18. Oil fill cap
19. Safety valve
20. Antistatic cooling fan
21. Anti-static belt
22. Vibration damping
23. Gas intake coupling
24. Refill coupling
25. Condensate collection tank
26. Refill HP pipe
Pressure Circuit
2. Safety discharge valve
3. Intake valve 1st stage
4. Discharge valve 1st stage
5. Cooling pipe 1st-2nd stage
6. Pressure switch 1st stage
7. Intake valve 2nd stage
8. Discharge valve 2nd stage
9. Cooling pipe 2nd-3rd stage
10. Condensate separator
11. Pressure switch 2nd stage
12. Intake valve 3rd stage
13. Discharge valve 3rd stage
14. Cooling pipe 3rd-4th stage
15. Condensate separator
17. Intake valve 4th stage
18. Discharge valve 4th stage
19. Final cooling pipe
20. Condensate separator
21. Non return valve
22. Safety valve
23. Molecular screen filter
24. Active carbon molecular screen filter
25. Pressure gauge
26. Pressure maintaining valve
27. Refill pressure switch
28. Refill HP pipe
29. Refill coupling
