CompAir L23 to L29
Oil-lubricated screw compressors 22 to 30 kW – fixed and variable speed (RS)
Energy efficiency was the priority for this series. The compression stage, made in CompAir’s own factory, runs at low speed and significantly reduces electricity costs.
The compressors are available with fixed or variable speed, with a built-in refrigeration dryer and with heat recovery that makes the waste heat usable.
Motor power
22 to 30 kW
Pressure
5 to 13 bar
Flow rate
0.92 to 5.52 m³/min
Why the L23 to L29?
Semi-integrated compression stages of CompAir’s own design and an IE3 motor form the core. The built-in separator system keeps the residual oil content below 3 mg/m³.
The thermostatically controlled fan runs quietly; the compressor can stand at the point of use without additional fans.
- High reliability and clean compressed air
- Very good energy efficiency
- Small footprint
- Easy maintenance thanks to the semi-integrated compression stage
- Available with heat recovery and dryer
- Delcos Pro SE controller with Modbus and web server
Product images
Technical data
L23 – L29 with fixed speed
| Compressor model | Operating pressure | Drive motor | Flow rate ¹⁾ | Sound pressure level ²⁾ | Weight | Dimensions L × W × H |
|---|---|---|---|---|---|---|
| [bar g] | [kW] | [m³/min] | [dB(A)] | [kg] | [mm] | |
| L23 | 7,5 | 22 | 4,16 | 67 | 650 | 1345 × 880 × 1612 |
| 10 | 22 | 3,45 | 67 | 650 | 1345 × 880 × 1612 | |
| 13 | 22 | 2,98 | 67 | 650 | 1345 × 880 × 1612 | |
| L26 | 7,5 | 26 | 4,84 | 68 | 677 | 1345 × 880 × 1612 |
| 10 | 26 | 4,13 | 68 | 677 | 1345 × 880 × 1612 | |
| 13 | 26 | 3,44 | 68 | 677 | 1345 × 880 × 1612 | |
| L29 | 7,5 | 30 | 5,52 | 69 | 681 | 1345 × 880 × 1612 |
| 10 | 30 | 4,81 | 69 | 681 | 1345 × 880 × 1612 | |
| 13 | 30 | 4,12 | 69 | 681 | 1345 × 880 × 1612 |
L23RS – L29RS with variable speed drive
| Compressor model | Min. – max. operating pressure | Drive motor | Flow rate ¹⁾ at 7.5 bar g | Flow rate ¹⁾ at 10 bar g | Flow rate ¹⁾ at 13 bar g | Sound pressure level at 70% load ²⁾, 1 m | Weight | Dimensions L × W × H |
|---|---|---|---|---|---|---|---|---|
| [bar g] | [kW] | [m³/min] | [m³/min] | [m³/min] | [dB(A)] | [kg] | [mm] | |
| L23RS | 5 – 13 | 22 | 1,11 – 4,12 | 1,03 – 3,50 | 1,35 – 2,89 | 68 | 681 | 1345 × 880 × 1612 |
| L26RS | 5 – 13 | 26 | 1,11 – 4,78 | 1,03 – 4,10 | 0,92 – 3,56 | 69 | 708 | 1345 × 880 × 1612 |
| L29RS | 5 – 13 | 30 | 1,11 – 5,41 | 1,03 – 4,50 | 0,92 – 3,82 | 69 | 712 | 1345 × 880 × 1612 |
¹⁾ Data measured and stated in accordance with ISO 1217 Edition 4, Annex C & E, within the following tolerances: inlet pressure 1 bar a, inlet temperature 20 °C, relative humidity 0% (dry)
²⁾ Free-field sound measurement in accordance with ISO 2151 and ISO 9614-2, tolerance ± 3 dB(A).
Data from CompAir. Flow rate to ISO 1217, Annex C or E. We will be happy to determine with you which version and pressure are right for your system.
Frequently asked questions
Fixed speed or variable speed (RS)?
A fixed-speed compressor is most economical when it runs at a steady load. If your compressed air demand fluctuates during the day, a variable speed RS compressor continuously adjusts its delivery and saves electricity. On request, we measure your demand with a compressed air analysis and tell you what is worthwhile.
Can the waste heat be used?
Yes. Up to 94 % of the energy consumed turns into heat. With heat recovery you can use it to heat water or rooms. More on this under Heat recovery.
Do I also need a dryer and filters?
In most cases, yes. The compressor delivers compressed air with very little residual oil, but it still contains moisture. A refrigeration dryer and suitable filters provide the quality your application needs. See Compressed air drying and Compressed air filtration.
Who maintains the compressor?
We do. As the CompAir partner for north-western Switzerland, we maintain and repair your system with genuine spare parts and service kits. If your compressed air supply fails, you can reach our on-call service on 062 552 00 88.
Downloads
Which compressor is right for your business?
Compressed air demand, pressure, operating times and available space determine the choice. We advise you, supply the compressor with air treatment, install the system and take care of service.