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  Gielle Marine Fire Solutions: 45 years of expertise and experience
Fire Protection for the Marine Industry

Foam fire extinguishing systems
Foam extinguishing systems are the solution for fighting liquid fires. High-risk areas, like engine, boiler or pump rooms, are perfectly protected with high-expansion foam.

Low-expansion foam distributed with monitors is a very effective extinguishant for large open areas like tanker, freight carrier and helicopter decks.

Hot Foam fire extinguishing systems
Cost-effective alternative to CO2 for total flooding applications in machinery spaces

The Hot Foam system is especially convenient for use on tankers where a deck foam system is also a requirement as it reduces overall cost of both systems while simplifying maintenance and operator training.

Unlike CO2, Hot Foam is non-toxic and if required rotating machinery, can continue to be operated in the foam in an emergency. Installation is very simple with no moving parts in the foam generators located in the machinery space and no large ducting requirements in the space. The system has already been supplied on a number of vessels and has received Type approval from all the major class societies.

• More cost effective than CO2 Systems especially on tankers
• Provides more than “one shot”
• Does not endanger human life when released
• Lends itself to simple operational testing during vessel life
• Integrity of space boundary much less critical than for CO2 systems
• Can be released quickly reducing damage
• Zoning provides option for selective release
• Inherently more reliable than CO2
• Allows machinery to continue to be operate in it
• Especially effective against deep-seated fires
• Minimal security risk when compared to high pressure bottle bank

How it works 
The Gielle Hot Foam system uses air from inside the machinery space to generate high expansion foam for smothering the fire and in addition offers the temperature reduction effects of water fog. The foam extinguishes the fire as it fills all void spaces, effectively starving the fire of oxygen while cooling down the surrounding areas. The Hot Form system is no different from an ordinary deck foam system with the foam monitors replaced by hot foam generators that induct hot air from inside the machinery space to create Hot Foam with an expansion ratio of 1 - 666. 

There are no moving parts in the stainless steel Hot Foam generators making the system very easy to maintain and simple to test over the life of the vessel.

A fully operational system can be released both manually and automatically and is set out schematically alongside. 

The system can also be operated remotely if required from control stations around the vessel. In its simplest form the system can be operated by opening the valves, and starting the fire pump; followed by the foam pump after a short delay.

Design and operational considerations for effective inside air high expansion foam systems 

There are common issues encountered for all inside air hot foam systems which need to be addressed when designing a system. 
These include:
• Compliance with test protocol MSC/Circ.668
• Identifying the correct fill rate based on MSC/Circ.668 testing and set out in the Type Approval Certificate
• When lower level generators are submerged the premix to them needs to be stopped
• Accomplish foam generation at the required fill rates at floor plate and mid-level
• In case of a problem with one section, we need to sense this and isolate the section
• Incorporate testing the system to make certain that it is fully operational
• Deal with vibration in the machinery space
• Select the location of generators to get the best coverage
• For sequential automatic operation use only type approved PLCs and review reliability

High Expansion Foam Fire Extinguishing System 
The system is designed according to SOLAS Ch.II-2, Reg.9 and IMO
MSC/Circ. 847, 9. 

High Expansion Foam Fire Extinguishing System 

Gielle High Expansion Foam Fire Extinguishing System, type HiFoam, is approved by major Classification Societies and accepted by flag authorities for use as fire protection system for machinery spaces and pump rooms. 

The system has been extensively tested and complies with SOLAS IMO MSC/Circ. 668, 728 and foam testing to IMO MSC/Circ. 670. The foam concentrate also complies with requirement of European Council Directive 96/98 on Marine Equipment (MED). 

Features and benefits
Comply with SOLAS and approved by major classification societies (IACS) MED (Marine Equipment Directive) approved foam liquid Extensive independent testing according to IMO MSC/Circ.668 and Circ.728 and foam testing to Circ.670

Expansion ratio 1:700 using internal air – eliminates needs for extensive air  ducting and fans Improved filling rate of 1.9 metre per second - proven to be most effective for machinery space fires Sequential release design – optimised protection and reduce water capacity Quick release reduces fire and heat damage to equipment and structure Safe and secure for crew Minimal and easy maintenance 

Technical Design 
The system can be designed and installed both as a total flooding as well as a local system for protection of machinery spaces (such as engine room, purifier room, incinerator room) and pump rooms. The system consists of a storage tank for foam liquid at atmospheric pressure, foam pump and mixing equipment located in the foam central room. 

The foam concentrate is mixed with water in a proportioner or an inductor and discharged through the foam generators. 

The nominal working pressure is 6 bar at the foam generators. The system can use both fresh or sea water.

Foam generators are installed at the highest level in the protected space and at strategically locations above high risks areas. The water/foam mixture is expanded with air in the generators. The air used for producing foam is drawn from the protected space, thus, no ducting and fans for external air is required. 

The foam produced by the foam generators fall directly by gravity to cover the entire protected space. The system can be remotely operated by a control cabinet located centrally with local control cabinets for operational flexibility.

  Immediate free quote
Contact us for an immediate free quote. 

Call us +39 0803118998
  E-mail: info@gielle.it  

Our quality is certified
Gielle makes its products inaccordance with UNI EN ISO 9001, UNI EN ISO 14001, SA8000:2001 certified quality standards

In accordance with established maritime standards
Gielle’s systems solutions have been tested and approved by marine regulatory agencies throughout the world.

Worldwide installation and service.
No matter where your vessel puts into port. From New York to Dubai, we perform whatever service is necessary including installation, retrofit, recharge, maintenance and emergency repair.

It's our global commitment to keeping your Gielle systems functioning perfectly and in accordance with applicable Marine fire protection regulations.

The right approvals and certifications.
Gielle Fire Systems' products carry an impressive range of Type Approvals and Flag Administration Approvals.

System design, installation & service
Gielle can provide the services (design and installation, retrofit, recharge, an d maintenance) necessary to keep your system functioning properly and in compliance with all applicable Marine fire protection regulations.
We provide complete stationary and mobile fire protection solutions from risk analysis via technical design to installation.

Gielle is the leading fullservice provider for fire protection in Europe and one of the leading companies worldwide.   

Marine, naval and offshore fire protection
Products from the Gielle Fire Suppression have been developed to meet not only the needs of today, but to also comply with evolving marine requirements, including environmental issues, local regulations and more. To every extent possible, we engineer the ability to upgrade our equipment directly into our product lines. In many cases, this gives owners the ability to avoid entire system replacements when conditions change. Each design innovation is supported by such important services as ongoing safety documentation.

Immediate free quote
Contact us for an immediate free quote. 

Call us +39 0803118998
  E-mail: info@gielle.it  

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