Specifications:
The document outlines specifications for dental compressors, specifically the DK50 series, designed for use with dental units. The models include DK50 2x2V/110, DK50 2x2V/110/M, DK50 2x2V/110S, and DK50 2x2V/110S/M, suitable for four dental units, and DK50 2x4VR/110/M and DK50 2x4VR/110S/M for central air distribution.

Performance Parameters:
- For DK50 2x2V/110 series:
   - Airflow at 5 bar: 280 l/min or 225 l/min depending on the model.
   - Airflow at 6 bar: 270 l/min or 215 l/min.
   - Airflow at 8 bar: 210 l/min or 165 l/min.
   - Noise level: ≤ 73 dB(A) for most models, with some models at ≤ 55 dB(A) or ≤ 56 dB(A).
- For DK50 2x4VR/110 series:
   - Airflow at 6 bar: 430 l/min.
   - Airflow at 8 bar: 330 l/min.
   - Noise level: ≤ 77 dB(A) or ≤ 58 dB(A) depending on the model.

Accessories:
The compressors come with optional accessories such as dryers and boxes, with availability varying by model.

Usage Recommendations:
- The number of dental units supported is subject to regional requirements and the air demand of each unit.
- The compressors are designed for 100% duty cycle (S1 - 100%).

Critical Information:
- Ensure compatibility with regional requirements for dental units.
- Consider the air demand of each dental unit when selecting a compressor model.