Frequently Asked Questions

A PV Valve is designed to regulate the pressure inside cargo tanks, preventing overpressure and vacuum conditions that could compromise the structural integrity of the vessel.

A High Velocity Valve (HV Valve) ensures vapours are safely released at high exit velocities, dispersing harmful gases away from the deck and crew, meeting stringent environmental and safety regulations.

Yes, all Pres-Vac valves comply with IMO regulations, including ISO 15364:2021 and other relevant international safety and environmental standards.

Pres-Vac valves are designed for minimal maintenance, but regular inspections are recommended. The frequency depends on operational conditions and regulatory requirements.

Yes, our PV-ECO valves are certified for methanol, ammonia, and other alternative fuels, complying with IMO 1621 and ATEX standards for safe operation in hazardous environments.

With proper maintenance, Pres-Vac valves are designed to last many years. Our high-quality materials and advanced sealing technology ensure long-term reliability.

Our valves feature resilient seals and precise engineering to minimise leakage. The leakage limits are defined by ISO 15364:2021, Annex J.

Yes, the PV-VOC series has a build in Breather function.

If small bubbles, it is most likely within the limits – if big and multiple bubbles are over the limits, this is just a guideline. Limits can be found in ISO15364:2021 in “Annex J”.