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Pressurisation Unit — Cold Fill & Vessel Charge

Sealed LTHW pressure chain: cold fill pressure from static height, vessel pre-charge, final pressure at max temp, and a safety-valve margin verdict.

Pressure chain

m

Vessel to highest point (exact: 1 bar ≈ 10.197 m)

bar

Venting allowance above static — 0.3 bar convention

Vessel charge

L

From Expansion Vessel Sizing

L

Actual/installed vessel — e.g. the standard size suggested by Expansion Vessel Sizing

Safety valve

Enter expanded volume (Ve) to check the pressure chain
ensign.software · 28 October 2026The Ensign Toolbox