Terms & Glossaries of Shipping and Trading

Inert Gas System

Inert gas system is the most important integrated system for oil tankers for safe operation of the ship. Inert gas is the gas that contains insufficient oxygen (normally less than 8 %) to suppress the combustion of flammable hydrocarbon gases.

What is Inert Gas System?

A system of preventing any explosion in the cargo tanks of a tanker by replacing the cargo, as it is pumped out, by an inert gas, sometimes by flue gas from ship boilers. Gas freeing must be carried out subsequently if workers have to enter the empty tanks.