Coltri Silenced Nitrogen Booster

With a working pressure of up to 6000 psi (413 bar), the Coltri Silenced Nitrogen Booster is based on the successful MCH22-36 pump platform. Charging rate is variable and is based upon intake pressure of 29-73 psi (2-8 bar).

A booster compressor receives gas under pressure and is therefore more efficient and pumps more gas per horsepower than a standard compressor. A nitrogen booster is equipped with a service stage to recover nitrogen blowby from the crankcase. The booster units are vented at each start-up to remove the nitrogen amount which eventually has been contaminated during booster standby.


Standard Features

  • Inlet regulator with pressure switch and solenoid valve
  • Small inlet surge tank
  • Control panel with pressure-free automatic restart
  • High temperature display
  • Automatic shutdown for high temperature
  • Automatic shutdown for low oil
  • Phase control recognition for proper rotation
  • Hour meter
  • Interstage pressure gauges
  • Oil pressure gauge
  • Oil level sight gauge
  • Low presuure oil pump with filter
  • Large stainles steel interstage cooling tubes
  • Large condensate seperators
  • Automatic condensate drains
  • Condensate test button
  • 90,000 cu ft dual filtration system
  • Steel frame with scratch-proof powder coating

Optional Equipment

  • CO analyzer
  • Moisture analyzer
  • O2/nitrogen analyzer


Charging Rate Varibale based on intake pressure
Power Three-phase electric motor
Motor Power 10 hp (7.5 kW)
Power Systems

208-230 V / E3 / 60 Hz
208-230 V / E3 / 50 Hz

Stages 4 cylinder, 3 stage
Intake Pressure 29-118 psi (2-8 bar)
Maximum Working Pressure 6000 psi (413 bar)
Operating Temperature 32-120°F (0-48°C)
Compressor RPM 880
Dry Weight 913 lb (414 kg)
Cooling Air Required 3000 CFM
Noise Level 78 dB @ 1 m
Lubrication 4.5 qt oil pressure lubricated
Dimensions (L x W x H) 31 x 39 x 61 in (79 x 99 x 155 cm)
Warranty 12 months