Inert Gas System Suppliers

Key Functions of Inert Gas Systems on Board

Inert gas systems are a fundamental part of safety operations on tankers that carry oil or other flammable cargo. Their job is simple but critical - to prevent explosions inside cargo tanks by replacing oxygen-rich air with inert gas. With the oxygen level reduced, the risk of combustion drops significantly, even in the presence of flammable vapors.

These systems are typically used during key operations like loading and discharging - times when tanks are most exposed to atmospheric air. By continuously supplying inert gas, the system helps keep the tank atmosphere stable and below the flammable range.

Beyond explosion prevention, inert gas systems also support cargo protection. Many sensitive cargoes require specific atmospheric conditions to avoid degradation or contamination during transit. Inerting helps maintain product integrity, especially during long voyages or when tanks are not fully loaded.

For the crew, a well-maintained inert gas system adds a layer of protection that allows them to carry out operations with greater confidence. A properly functioning IGS isn’t just a safety measure - it’s a regulatory requirement and a core part of risk management at sea.

Regulatory Standards and Compliance

Marine inert gas systems must adhere to strict international regulations to ensure operational safety. Particularly under SOLAS, vessels of a certain size and cargo type are required to have inert gas systems installed and properly maintained. Compliance helps prevent onboard incidents and ensures vessels pass inspections without costly delays or penalties.

In addition to SOLAS, flag states and classification societies require vessels to follow strict design, operation, and maintenance standards for inert gas systems. These rules cover everything from oxygen content limits and alarm systems to scrubber performance and recordkeeping.

Working with reputable inert gas system manufacturers helps ensure your equipment meets current compliance benchmarks, including updated IMO requirements. This not only safeguards your vessel but also protects your crew, cargo, and reputation at sea.

Types of Marine Inert Gas Systems

Different vessels and cargo types require different inerting solutions. While the core goal remains the same - to reduce oxygen levels and prevent flammable atmospheres - the systems used to achieve this can vary significantly.

1. Flue Gas Systems are the most traditional setup, typically installed on oil tankers. These use exhaust gases from the ship's main boiler or engine, cleaned through a scrubber, before being pumped into cargo tanks. They’re effective, especially on vessels where boiler operation is constant.
2. IGG (Inert Gas Generator) Systems are more versatile and common on chemical tankers, product carriers, and gas carriers. These systems burn fuel to create an inert gas mixture, which is then cooled, scrubbed, and distributed to the tanks. Since they’re independent of the main engine or boiler, they offer more control and consistent output.
3. Nitrogen-Based Systems are growing in popularity, especially on LNG carriers and modern chemical tankers. These systems generate high-purity nitrogen, which is completely free of combustion by-products and suitable for cargoes sensitive to contamination or moisture.

Each system must be designed to match the vessel’s capacity, cargo type, and operational profile. A knowledgeable inert gas system distributor can help operators choose the right system configuration - balancing performance, maintenance needs, and compliance with current marine safety standards.

Find Verified Inert Gas System Suppliers

Whether you're managing a newbuild project, retrofitting a chemical carrier, or sourcing parts for scheduled maintenance, working with verified suppliers can make all the difference.

Records Marine helps shipowners, operators, and technical managers connect with trusted providers across the globe. Our platform allows you to filter suppliers based on product type, location, manufacturer, certification, and more - making the procurement process faster and more focused.

We’ve carefully reviewed every manufacturer and distributor featured on our platform to ensure technical reliability, regulatory compliance, and proven track records in the field.

Explore the vetted vendors below and find the right supplier for your vessel’s inert gas needs.