Rule of thumb: <12 bar → low pressure (Class 3, Dv99 ≥ 200 µm); 12–34 bar → intermediate; ≥35 bar → high pressure (Class 1, Dv99 ≤ 200 µm). Detailed sizing per manufacturer.
Result
- System classification
- High pressure (Class 1, Dv99 ≤ 200 µm)
- Standard reference
- NFPA 750 §3.3 / EN 14972-1
Formula: (rule of thumb)
Reference: NFPA 750 / EN 14972
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