Ingersoll Rand · Equipment · Oil-Free
Nirvana™ Oil-Free VSD
Variable-speed oil-free screw compressors, 37–160 kW
Nirvana™ pairs Class 0 oil-free air with a real variable-speed drive and a hybrid permanent magnet (HPM) motor: no bearings or wear parts in the motor, soft start below rated current, and at least 30% energy saving over conventional fixed-speed oil-free compressors.
Overview
Key Features
- Class 0 oil-free air to ISO 8573-1:2010, passed TÜV Rheinland testing
- Two-stage screw compression module with cast iron housing and synchronous gear drive
- UltraCoat™ rotor coating reduces airend energy consumption by 10%
- Three-seal system (air seal, labyrinth seal, oil-draining seal) so oil never reaches the compression chamber
- Stainless steel second-stage rotor and corrosion-resistant intercooler piping
- Air-cooled units run continuously in ambient temperatures up to 46 °C
- Backlit LCD touch-button controller with self-diagnosis, local, remote and interlock modes
- Optional PORO power-outage restart, motor heater, remote control module and NEMA 4 electrical protection
Product Listing
Models and Specifications
Nirvana™ oil-free VSD · 37–160 kW
| Model | Power | Max. flow | Working pressure | L × W × H (mm) | Weight | Quantity and add to enquiry list |
|---|---|---|---|---|---|---|
| IRN37K-OF | 37 kW | 6.5 m³/min | 4.5–8.5 barg | 2080 × 1115 × 2024 | 1,579 / 1,624* kg | |
| IRN45K-OF | 45 kW | 7.2 m³/min | 4.5–8.5 barg | 2080 × 1115 × 2024 | 1,579 / 1,624* kg | |
| IRN55K-OF | 55 kW | 10.6 m³/min | 4.5–10 barg | 2078 × 1321 × 1948 | 2,041 kg | |
| IRN75K-OF | 75 kW | 13.1 m³/min | 4.5–10 barg | 2078 × 1321 × 1948 | 2,041 kg | |
| IRN90K-OF | 90 kW | 18.7 m³/min | 4.5–10 barg | 2547 × 1885 × 2435 | 3,215 kg | |
| IRN110K-OF | 110 kW | 20.3 m³/min | 4.5–10 barg | 2547 × 1885 × 2435 | 3,215 kg | |
| IRN132K-OF | 132 kW | 25.6 m³/min | 4.5–10 barg | 2547 × 1885 × 2435 | 3,215 kg | |
| IRN160K-OF | 160 kW | 26.5 m³/min | 4.5–10 barg | 2547 × 1885 × 2435 | 3,215 kg |
Nirvana™ oil-free VSD (HPM motor model), 50 Hz, 37–160 kW. * Values for air-cooled / water-cooled units.
Air purity, to ISO 8573-1:2010
| Purity class | Water: pressure dew point | Oil and oil vapour (mg/m³) |
|---|---|---|
| Class 0 | To be determined by the user or manufacturer; more stringent than Class 1 | 0 (to be determined) |
| Class 1 | −70 °C (−100 °F) | 0.01 |
| Class 2 | −40 °C (−40 °F) | 0.1 |
| Class 3 | −20 °C (−4 °F) | 1 |
| Class 4 | +3 °C (37.4 °F) | 5 |
| Class 5 | +7 °C (44.6 °F) | – |
| Class 6 | +10 °C (50 °F) | – |
ISO 8573-1:2010 air purity classes, water and oil columns. The standard also sets limits for particles. The lower the class number, the purer the air.
Test standard: ISO 1217, GB/T 3853-1998. Add the models you need to your enquiry list.
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Add It to Your Enquiry List
Test standard: ISO 1217, GB/T 3853-1998. Add the models you need to your enquiry list.
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