COLTRI LOW PRESSURE ROTARY NITROX SILENT MEMBRANE COMPRESSOR RANGE
COLTRI LOW PRESSURE ROTARY NITROX SILENT MEMBRANE COMPRESSOR RANGE
COLTRI LOW PRESSURE ROTARY NITROX SILENT MEMBRANE COMPRESSOR RANGE
COLTRI LOW PRESSURE ROTARY NITROX SILENT MEMBRANE COMPRESSOR RANGE
COLTRI LOW PRESSURE ROTARY NITROX SILENT MEMBRANE COMPRESSOR RANGE
COLTRI LOW PRESSURE ROTARY NITROX SILENT MEMBRANE COMPRESSOR RANGE
COLTRI LOW PRESSURE ROTARY NITROX SILENT MEMBRANE COMPRESSOR RANGE
Coltri Compressors are built to order, some models' are in stock however delivery for larger units may take up to 28 day's from date of purchase. Contact us to confirm availability if required sooner.
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Nitrox compressors

Industrial screw compressors

Safety and ease of use are the pluses that make these low-pressure air compression systems ideal for recreational diving. Combined with a high-pressure breathing air compressor, these models provide an oxygen-enriched mixture up to 40 percent.

Coltri has 3 Low Pressure Rotary Nitrox Systems available. See Below  PDF CATALOG  

LP Rotary Silent 250 

It consists of an industrial screw compressor that delivers air at a pressure of 10 bar to the Parker® membrane. The percentage of oxygen obtained at the outlet can be adjusted from 32% to 36% thanks to a valve accessible on the front side of the compressor. If connected to a compressor with pumping unit 315 (MCH 16), Nitrox at 32% can be obtained up to a pressure of 232 bar. The oxygen analyzer allows you to check the correct percentage, adjusting it through the appropriate valve.

Standard equipment

  • Electrical cabinet
  • Automatic condensate drain
  • 2 analyzers
  • Thermostat
  • 1 Parker Enoxy SA 708 oxygen membrane

% O2

32%

36%

L / MIN

315

235

Engine: Electric three-phase 400 V - 50 Hz

Engine power: 7.5 kW - 10 Hp

Charging rate: 950 l / min - 57 m3 / h - 33.5 CFM

Working pressure: 10 bar - 145 PSI

Net weight (approx.): 215 kg - 474 lb

Dimensions (W x D x H): 75 x 85 x 139 cm - 29.5 x 33.5 x 54.7 in.

 

LP Rotary Silent 300

 It consists of an industrial screw compressor that delivers air at a pressure of 8 bar towards a membrane that separates nitrogen and oxygen up to a maximum percentage of 40% of oxygen. The enriched air can be compressed to 232 bar in combination with a high pressure compressor. The percentage of oxygen obtained at the outlet can be adjusted from 32% to 40% thanks to a valve accessible directly on the top of the compressor. The oxygen analyzer allows you to check the correct percentage, adjusting it through the appropriate valve.

Standard equipment

  • Electrical cabinet
  • Automatic condensate drain
  • 2 analyzers
  • Thermostat
  • 1 Permea 230 membrane

% O2

32%

36%

40%

L / MIN

600

400

300

Engine: Electric three-phase 400 V - 50 Hz

Engine power: 7.5 kW - 10 Hp

Charging rate: 1.070 l / min - 64.2 m3 / h - 37.7 CFM

Working pressure: 8 bar - 116 PSI

Net weight (approx.): 256 kg - 564 lb

Dimensions (W x D x H): 124 x 85 x 123 cm - 48.8 x 33.5 x 48.4 in.

 

LP Rotary Silent 600 

The top of the Nitrox line is the LP Rotary Silent 600, consisting of an industrial screw compressor that delivers air at 10 bar to a membrane that separates nitrogen and oxygen at atmospheric pressure to obtain Nitrox 40% O2, passing to be compressed to 232 bar in combination with a high pressure compressor. The percentage of oxygen obtained at the outlet can be adjusted from 32% to 40% thanks to a valve accessible directly above the compressor. Exclusive to the Heavy Duty line.

Standard equipment

  • Electrical cabinet
  • Automatic condensate drain
  • 2 analyzers
  • Thermostat
  • 1 Permea 230 membrane

% O2

32%

40%

L / MIN

1.000

600

Engine: Electric three-phase 400 V - 50 Hz

Engine power: 15 kW - 20 Hp

Charging rate: 2.200 l/min - 132 m3/h - 77.6 CFM

Working pressure: 10 bar - 116 PSI

Net weight (approx.): 270 kg - 595 lb

Dimensions (W x D x H): 138,5 x 92,5 x 156 cm - 54.4 x 36.4 x 61.4 in.