Applications
Chemical Carriers
Advanced Pressure/Vacuum Valve Solutions for Hazardous and Sensitive Cargo
Chemical carriers operate in one of the most demanding environments in maritime transport. Unlike conventional oil tankers, chemical tankers handle multiple cargo types – often with high vapour pressure, toxicity, flammability, and strict contamination requirements.
At Pres-Vac Engineering, we deliver certified pressure vacuum valves and tank protection systems engineered specifically for chemical tanker applications – where precision, tightness, and regulatory compliance are non-negotiable.
Handling Complex and High-Risk Cargo
Chemical cargoes often involve:
- High vapour pressure
- Toxic or corrosive substances
- Strict segregation requirements
- Frequent cargo changes
- Nitrogen-based inert gas systems
In these conditions, even small pressure deviations can compromise safety, cargo integrity or regulatory compliance.
Our high velocity pressure vacuum valves are engineered to maintain stable and precise tank pressure without oscillation or overpressure peaks – protecting both vessel and cargo.
Related products
PV-ECO – High-Velocity Valves
Gas-Freing Cover
Certified for Chemical Tanker Standards
Pres-Vac valves for chemical carriers are:
- Type approved by major classification societies
- Tested according to ISO 15364 and ISO 16852
- Certified for explosion group IIA, IIB3 and IIB
- Endurance burn tested
- Designed for compliance with IMO regulations
Certification of flame transmission, leakage tightness, long vent pipe performance and non-oscillation behaviour is documented on the Type Approval Certificate.
For chemical operators, documentation is not optional – it is essential.
Why Choose Pres-Vac for Chemical Carriers
✔ No excessive opening overpressure
✔ Reduced emissions and leakage
✔ Certified flame arresting capability
✔ Stable non-oscillating performance
✔ Compatible with nitrogen IG systems
✔ Fully documented compliance
We work closely with shipowners, designers and yards to ensure that every chemical tanker installation is optimised for cargo profile, vent pipe length and operational pressure range.
Pressure vacuum valves protect cargo tanks against overpressure and vacuum while minimising vapour emissions and ensuring safe handling of hazardous chemicals.
Yes. Our valves are designed for a wide range of chemical cargoes and can be supplied with materials and seals suited to specific applications.
Our patented valve design maintains stable tank pressure, reducing unnecessary vapour release and helping minimise product loss.
Yes. Our solutions comply with relevant IMO requirements and are certified by all major classification societies.
Yes. The simple design with few moving parts provides reliable operation and reduces maintenance compared to conventional valve designs.
Contact us today to secure your Chemical Tanker Venting System
Whether you are building new IMO I, IMO II / IMO III chemical tankers or upgrading existing tonnage, Pres-Vac delivers pressure vacuum safety valves and tank protection systems engineered for hazardous cargo operations.
Contact our technical sales team to discuss your specific cargo and vessel requirements.