low pressure water mist nozzle
Model NEPTUN OH-CA
Min. water pressure
6 bar ≈87 psi
Max. working pressure
16 bar ≈232 psi
Drop size
DV90 < 300 μm
Water capacity design
According to IMO MSC. 265(84)
kv metric
10.0
flow rate at min pressure
24.50 l/min
Nominal density
2.45 mm/m2
Coverage
4.00 m x 5.00 m 2 nozzles in the cabin
Aesthetic
Aesthetic fire protection
The FIREKILL™ NEPTUN OH nozzles are installed recessed into the ceiling with the nozzle rosette flush with the surface and the nozzle Cover Plate protruding 10-15 mm from the surface, being the only visible parts of the nozzle in its daily use or directly into a visible pipe system in retrofit cases. The FIREKILL™ NEPTUN OH nozzles can be delivered in different paint and finishes making the system blend in with almost any type of surface, securing the aesthetics of the surroundings.
Design
Application
The FIREKILL™ NEPTUN OH system for protection of open public spaces is unique as it requires very low water pressures and water flow rates. The system utilized the automatic low-pressure water mist nozzles Model OH-CA which are patented automatic, fine water spray nozzles. The OH-CA nozzle creates a homogenous fine water mist, which absorbs heat, reduces radiant heat and causes oxygen depletion near the fire, which in turn controls and suppresses the fire. This homogenous mist consists of a high concentration of very small droplets. Because of the small mass of the droplets, the nozzle creates a large coverage, further minimizing the water expenditures and hydrating nearby combustibles.
Test and Approvals
DnV MED-B and UK MER-B Approval
The FIREKILL™ NEPTUN OH-CA has been tested in accordance with IMO Resolution MSC.265(84) for cabins. The FIREKILL™ NEPTUN OH-CA can therefore be used for IMO Occupancy classification (6) Accommodation space minor fire risk, (7) Accommodation spaces of moderate fire risk, (9) Sanitary & similar spaces