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Fire-Main - Pressure & Flow Check

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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

SymbolMeaningUnitSource
$p_{hydrant}$Hydrant pressureN/mm²pressure gauge
$L_{jet}$Nozzle jet throwmSOLAS II-2 Reg.10

Sources

  • SOLAS II-2 Reg. 10.