Pressure/Vacuum Relief Valve (PV Valve) · PV Valves & Vent Systems
It is normally installed on cargo tank vent risers and vent headers on tanker decks. Its primary duty is to control cargo-tank pressure and vacuum and provide a safe discharge path for vapour while maintaining tank protection. In service it interfaces with cargo tank vent piping, mast risers, flame screens or arresting arrangements where fitted, pressure monitoring and inert-gas/cargo systems. Compared with neighboring entries in the same product family, this record is the exact Pres-Vac PV Valve DN300 2450mbar variant; the model designation should be quoted exactly when matching onboard documentation and spares. For exact limits, settings, test values and approved maintenance criteria, refer to the manufacturer documentation for the exact figure.
What our service work and the manufacturer documentation say about keeping this model running.
Inspect cleanliness, free movement, seats, seals, drains, flame screens and vent piping; verify calibration/bench-test status under approved procedures and refer to manufacturer documentation for exact opening settings.
Carry approved seals, gaskets, seat components, springs or service kits where applicable, drain parts and replacement screens compatible with the fitted valve.
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