Fire-Main - Pressure & Flow Check

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.

Fire mainSOLAS II-2

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This calculator requires JavaScript to compute its result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

p_{hydrant} \geq 0.27\ \text{N/mm}^2, \quad L_{jet} \approx 12 \sqrt{p}

Symbol	Meaning	Unit
$p_{hydrant}$	Hydrant pressure	N/mm²
$L_{jet}$	Nozzle jet throw	m

Source: SOLAS II-2 Reg. 10

Fire-main hydraulic check per SOLAS II-2 Reg.