Applications
Special Executions
Engineered Pressure/Vacuum Valve Solutions Beyond Standard Marine Applications
Not every project fits inside a catalogue specification.
At Pres-Vac Engineering, we support installations that fall outside conventional tanker ship applications — including offshore systems, industrial storage, refinery infrastructure and specialised environmental facilities.
When safety, regulatory compliance and performance cannot be compromised, we engineer solutions tailored to the specific operating environment.
When the Application Falls Outside the Standard Scope
Certain projects require venting systems that go beyond traditional marine design parameters. This may include:
- Offshore installations with hybrid marine/industrial requirements
- Refinery and terminal storage systems
- Wastewater treatment plants handling hazardous vapours
- Industrial tanks operating under ATEX classification
- Non-standard pressure ranges
- Complex or space-restricted vent routing
- Emission-sensitive environments
In such cases, standard valve configurations are rarely sufficient.
We adapt our high velocity pressure vacuum valve technology to match the operational and regulatory framework of each project.
Offshore & Energy Infrastructure
Offshore units and energy facilities often operate in hazardous zones where ignition control, flame transmission resistance and long-term reliability are essential.
Our special executions for offshore and industrial environments may include:
- Explosion group IIB certification
- ATEX compliance (ISO 80079)
- Endurance burn testing
- Certified flame arresting performance (ISO 16852)
- Enhanced corrosion protection
- Performance validation for non-standard pipe lengths
The magnet-assisted opening technology allows precise adjustment of opening characteristics, even in systems with unusual pressure drop conditions.
Industrial & Environmental Installations
Vapour control is increasingly critical in environmental infrastructure.
Industrial tanks and wastewater treatment facilities handling volatile or hazardous vapours require:
- Stable pressure regulation
- Minimal leakage
- Reliable vacuum compensation
- Certified ignition protection
- Documented compliance for authorities
Our resilient seal solutions can reduce vapour leakage to near-zero levels, supporting strict environmental performance requirements.
Engineering Outside the Comfort Zone
Pres-Vac Engineering takes on projects that lie beyond our traditional product envelope when:
- Clients require documented regulatory compliance
- Operational conditions are complex or unconventional
- Long vent pipes or restricted installations affect performance
- Existing systems show instability or oscillation
- Maintenance accessibility is limited
- We evaluate each installation individually, including:
- Vapour characteristics
- Temperature and pressure conditions
- Vent routing and pressure drop calculations
Applicable regulatory framework (marine, industrial, ATEX, local authority requirements)
From there, we configure the appropriate pressure/vacuum valve solution — including magnet calibration, weight configuration, sealing selection and flame arresting specification.
Why Choose Pres-Vac for Special Executions
✔ Engineering support beyond catalogue scope
✔ Adaptable high velocity pressure vacuum valve design
✔ ATEX and explosion group certification
✔ Offshore and industrial experience
✔ Documented regulatory compliance
✔ Focus on safety, emissions and lifecycle reliability
Whether for offshore energy infrastructure, refinery storage or environmental installations, Pres-Vac Engineering delivers customised tank protection systems where safety and compliance are critical.
Let’s discuss your project
If your installation falls outside conventional marine tanker applications, we are ready to evaluate the technical requirements and propose a certified, project-specific solution.
Contact our technical team to discuss your application and ensure safe, compliant venting performance.