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2015 Scania P320 West Sussex Fire & Rescue Service
The 1st in a batch of NEW Scania WrL for West Sussex, all feature CAFS and the now standard front mounted winch. This example has gone on the run at Midhurst Fire Station and features a 2500 litre water tank.
The 1st in a batch of NEW Scania WrL for West Sussex, all feature CAFS and the now standard front mounted winch. This example has gone on the run at Midhurst Fire Station and features a 2500 litre water tank.
Whats behind the decision to go to a 2500 litre water tank? Isnt the standard an 1800 one? Have they had to sacrifice any locker space for the increase in tank size?
Added by David Sapsford on 28 May 2015.
Added by David Sapsford on 28 May 2015.
CAFS - Compressed Air Foam System
Midhurst is a rural location and has its fair share of wildfires, this is 1 of the main reasons for the CAFS & Larger water tank. No locker space has been compromised by the larger tank.
Added by Stuart Purves on 28 May 2015.
Midhurst is a rural location and has its fair share of wildfires, this is 1 of the main reasons for the CAFS & Larger water tank. No locker space has been compromised by the larger tank.
Added by Stuart Purves on 28 May 2015.
Nick,
CAFS is short for Compressed Air Foam System,
With CAFS the foam is made with compressed air either from a compressor or from air bottles.
It has a number of advantages like better throwing lengths, lighter hoses when used. CAFSs are available in all sizes from extinguisher size up to the largest fire trucks.
It also allows building extinguishing systems which do not depend on external power ressources which can be necessary especially in stationary extinguishing systems.
Added by Martin Siegel on 28 May 2015.
CAFS is short for Compressed Air Foam System,
With CAFS the foam is made with compressed air either from a compressor or from air bottles.
It has a number of advantages like better throwing lengths, lighter hoses when used. CAFSs are available in all sizes from extinguisher size up to the largest fire trucks.
It also allows building extinguishing systems which do not depend on external power ressources which can be necessary especially in stationary extinguishing systems.
Added by Martin Siegel on 28 May 2015.
CAFS also results in less water damage at a property fire, as a little of this much lighter firefighting medium goes a long way.
Added by Yelp Bullhorn on 28 May 2015.
Added by Yelp Bullhorn on 28 May 2015.
Ok thank you
Added by Nick Robertson on 28 May 2015.
Added by Nick Robertson on 28 May 2015.
Yelp - US fire research labs have established that a CAFS line usually accomplishes fire extinguishment in between one third and one half of the time taken for a plain water line at the same rate of flow.
Interior attacks were performed at 120 US GPM, equal to 440 LPM, and the water saving was achieved as a result of reducing the length of time the line was opened up. The successful tactics were not to have a lower water flow, but to apply the same flow for a much shorter time - thereby reducing the firefighters' exposure to heat, smoke, restricted visibility and the associates dangers.
Recent deliveries of rescue pumpers in Austria now actually have smaller water tanks than before, as typical one-room fires can be handled with so much less water.
New CAFS foam solutions are now also very effective on class A fires (hydrocarbons), so CAFS at 3% to 6% mix rates can be used, compared to 0.3% to 1.0% for class B incidents. They are also much more environmentally friendly, which was a challenge for older class A CAFS formulations.
Some European minor alarm trucks, which are basically 3 tonne vans, now carry a 600 liter tank and self contained CAFS system. They can actually knock down a surprising amount of fire!
Added by Rob Johnson on 15 April 2017.
Interior attacks were performed at 120 US GPM, equal to 440 LPM, and the water saving was achieved as a result of reducing the length of time the line was opened up. The successful tactics were not to have a lower water flow, but to apply the same flow for a much shorter time - thereby reducing the firefighters' exposure to heat, smoke, restricted visibility and the associates dangers.
Recent deliveries of rescue pumpers in Austria now actually have smaller water tanks than before, as typical one-room fires can be handled with so much less water.
New CAFS foam solutions are now also very effective on class A fires (hydrocarbons), so CAFS at 3% to 6% mix rates can be used, compared to 0.3% to 1.0% for class B incidents. They are also much more environmentally friendly, which was a challenge for older class A CAFS formulations.
Some European minor alarm trucks, which are basically 3 tonne vans, now carry a 600 liter tank and self contained CAFS system. They can actually knock down a surprising amount of fire!
Added by Rob Johnson on 15 April 2017.
Scania
Added by Nick Robertson on 27 May 2015.