Fire-main hydraulic check per SOLAS II-2 Reg. 10 - minimum pressure 0.27 N/mm² at any two hydrants and jet throw from nozzle.
Formula
$$ p_{hydrant} \geq 0.27\ \text{N/mm}^2, \quad L_{jet} \approx 12 \sqrt{p} $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $p_{hydrant}$ | Hydrant pressure | N/mm² | pressure gauge |
| $L_{jet}$ | Nozzle jet throw | m | SOLAS II-2 Reg.10 |
Sources
- SOLAS II-2 Reg. 10.