Deck foam system
The Unitor Low Expansion Foam fire extinguishing system (Unitor Low Foam system) uses a non-toxic foam concentrate, water and air to effectively extinguish fires in open spaces. The system provides safe and effective protection, and is harmless to the crew and environment.
- Monitors, portable applicators and foam spray nozzles can be used individually or in conjunction to build an effective foam fire fighting system that will quickly and effectively extinguish a fire. Effectively blankets fire and prevents further outbreak using non-toxic low expansion foam
- A balanced pressure proportioner guarantees reliable foam mixing
- Sturdy and compact foam monitors use jet or fog mode
- Fixed monitors are used to fight fire from a predetermined safe distance, while portable applicators and nozzles cover shadow areas not reachable by the monitors
- The monitors are adjustable and can be used in jet or fog mode and operated manually or remote hydraulically.
A cost effective solution
- Low installation and operational cost
- Designed for optimal system performance
- Components delivered on modular units reduces installation cost
- Minimal and easy maintenance keeps operational cost low
Where can the system be used?
Tankers (oil and chemical)
Protection of helidecks and other open spaces
System description and configuration
The Unitor deck foam system is designed to be installed both in open and enclosed spaces when necessary.
The system consists of a reinforced foam tank, foam pump, proportioner, sturdy and compact foam monitors and portable foam applicators or foam spray nozzles meeting the latest FSS rulings. Foam tank, foam pump, proportioner, valves and control panels can be delivered on skid units, thus reducing installation work and cost. All components are constructed in corrosion resistance materials and coatings.
The monitors are located along the deck, with two monitors mounted on the poop deck. They can be operated manually or remote hydraulically.The number and spacing of the monitors, foam tank capacity and system pressure/capacity is dependent upon vessel type and the area to be protected. For maximum effectiveness, a balanced pressure proportioner guarantees reliable foam mixing.
Foam applicators are provided for flexibility during fire fighting on deck areas and to cover areas shielded from monitors.
In machinery spaces
In machinery spaces where a fixed low expansion foam system is fitted in addition to a total flooding system, the system discharges foam through fixed foam spray nozzles. In addition, inductor type portable foam applicators are required.
Activation of the system
First the main fire pump(s) is started, then the foam pump is started, and the relevant walves are opened. The relevant monitor(s) shall be aimed at the base of the fire,
Extinguishing fire using deck foam
As an extinguishing medium, foam is lighter than the combustion materials. It consequently forms a stable foam blanket sealing against oxygen and effectively extinguishing the fire while reducing radiated heat.
The Unitor Low Foam system uses either protein or synthetic foam concentrate. The foam consists of foam concentrate, water and air.
While protein foams are most commonly used, both synthetic and protein foams are low expansion and form a stable, heat resistant and secure foam blanket to effectively extinguish large fires of hydrocarbon, polar solvents or mixtures of both.
The system suppresses fire by covering the surface of the burning liquid, separating the air supply and quickly suppressing the fire, cooling down the area which prevents further outbreak. The system can use both fresh and seawater.
The foam control station contains foam tank, foam concentrate pump, mixing device, foam concentrate and associated fittings. The control station is suitably located outside the protected area, adjacent to the areas protected and readily accessible and operable in the event of fire.
Rules and regulations for deck foam systems
The Unitor Low Foam system has been extensively and independently tested.
SOLAS Ch.II-2 Reg.10
FSS Code Ch14
IBC Code Reg.11
All foam concentrates including alcohol resistant foams, comply with IMO MSC/Circ.1312
Authorities rules and regulation
Classification societies rules an regulations
Other standards (EN, ISO, DOT, etc.)