Standard Features for Nitrogen Compressors

Crank case breather line is hard plumbed
Five Stages
Radial layout for reduced vibration and crank shaft loading
Spin-on Type Oil Filter
Connecting rods with needle roller bearings
Stainless steel valve assemblies on all stages
Latest technology in valve and ring design
Relief Valves on 1st, 2nd, 3rd & 4th Stage
Intercoolers on 1st, 2nd, 3rd & 4th, after cooler on 5th stage
Pressurized oil lubrication system
Cast Iron Block and Cylinders
Water separators on 2nd, 3rd & 4th stages
Designed and built in the USA

Options

Oil pressure switch
Fan Guard
ACD – Automatic Drain Block with Solenoid with hard plumbing to Water separators(12vdc, 24vdc, 115vac & 230vac)
Lifting Lug
Thermostat, 1/2 NPT, 60° ON, 80° OFF
Heater, Oil 1/2 NPT:

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Nitrogen CompressorsPressures:
3100 psig (214 bar)
6000 psig (414 bar)

Power Requirements:
15 hp (11 kW)
20 hp (15 kW)
25 hp (18.5 kW)

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5 Cylinder, 4 Stage Nitrogen Compressor
Model Inlet Pressure Max Working Pressure Capacity (1) & (2) Motor
psig bar scfm l/min hp kw
NI420-3 5 psig 3,100 214 25.5 722 20 15
NI425-3 5 psig 3,100 214 32.0 906 25 18.5
NI430-3 5 psig 3,100 214 38.5 1090 30 22.5
5 Cylinder, 4 Stage Nitrogen Compressor
Model Inlet Pressure Max Working Pressure Capacity (1) & (2) Motor
psig bar scfm l/min hp kw
NI450-3.6 5 psig 3,600 248 62.0 1756 50 37
5 Cylinder, 5 Stage Nitrogen Compressor
Model Inlet Pressure Max Working Pressure Capacity (1) & (2) Motor
psig bar scfm l/min hp kw
NI507-6 5 psig 6,000 414 11.0 311 7.5 5.6
NI510-6 5 psig 6,000 414 14.0 396 10 7.5
5 Cylinder, 5 Stage Nitrogen Compressor
Model Inlet Pressure Max Working Pressure Capacity (1) & (2) Motor
psig bar scfm l/min hp kw
NI515-6 5 psig 6,000 414 19.5 552 15 11
NI520-6 5 psig 6,000 414 25.5 722 20 15
NI525-6 5 psig 6,000 414 31.5 892 25 18.5
NI530-6 5 psig 6,000 414 35.0 991 30 22.5
NI540-5.5 12.5 psig 5,500 379 49.0 1388 40 30

1) Capacity is referenced to 5 psig inlet conditions, 68°F inlet temperature @ 80% of the compressor’s maximum working pressure. Tolerance +5/-4%
2) Specifications are subject to change.<