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Gas Inflation System (GIS Type)

  • Extremely reliable and rugged.
  • Fast consistent inflation times.
  • ISO 15738 approved for SOLAS use.
  • Approved to European Pressure Equipment Directive 2014/68/EU.
  • Typical uses include SOLAS life-rafts, Marine Evacuation Systems,  RIB self-righting bags and buoyancy bag inflation.
  • CE standard Overpressure Burst Disc fitted to prevent cylinder exceeding test pressure.
  • Operate using CO2, CO2/Nitrogen, air and pure Nitrogen.
  • Activation load between 60 to 100 newtons.
  • Hoses supplied.
  • Full activation regardless of painter/lanyard pull speed.
  • For use with up to 400 bar test pressure cylinder.
  • Available with internal or external overpressure venting.
  • Available with pressure gauge.
  • Water activated version available.
  • Servo system available to allow multiple cylinder firing.
  • These are safety critical assemblies and must only be installed and serviced in accordance with Leafield Marine Ltd instructions.

This is the original system developed by Leafield Marine, and was introduced in 1992. It is well proven with over 120,000 manufactured, and is used by some of the world’s leading life raft manufacturers on their SOLAS liferafts.

The GIS system uses a patented cutter system to ensure consistent, rapid inflation times, even on the largest life rafts.

Due to the safety critical nature of this product and number of variants available, we suggest that you contact Leafield Marine directly to discuss your particular requirement.

Please also see our later product Gas Inflation System Torsional (GIST type).

For tools and spare parts, please contact Leafield Marine Ltd.

Information Sheets

Gas Inflation System SOLAS Certificate of Approval

Gas Inflation System PED Approval Certificate

Gas Inflation System (with Gauge) PED Certificate of Approval

Gas Inflation System Servo Assembly Certificate of Approval

Liferaft Product Information Brochure ..pdf





















Nitrogen Valve Certificate of Approval - please contact Leafield Marine Ltd.

User Manual - Please contact Leafield Marine Limited for an up to date copy.

The above documents are in PDF format. To view these please use Adobe Reader.

Accessories and Variants

Nitrogen valve with gauge

Nitrogen Valve with Gauge

This variant provides accurate indication of cylinder pressure and can be supplied with internal or external overpressure venting.

High energy operating head

High Energy Operating Head

Designed for use on systems fitted to cylinders of 300 bar and above.

Gas Inflation Servo System

Gas Inflation Servo System

This unit replaces the standard operating head, and combined with a servo adaptor and Hoses allows up to four cylinders to be fired from one manual Head.

Water activated gas inflation system

Water Activated Gas Inflation System

This unit can be used to fire a Servo System when immersed in water. This is particularly useful on items such as self-righting bags and built-in buoyancy systems.


Electrically Operated Gas Inflation System

Leafield Marine can provide a Gas Inflation System that uses an electrical current to operate a pyrotechnic actuator to fire the cylinder valve cutter.

Pressure Conversion Chart

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