Low expansion foam for Hangar type I
Low expansion foam for Hangar type I
(OP)
Our client, the owner of a new hangar Class I is not satisfied with AFFF low expansion foam for his fire fighting system after a test performed, though NFPA 409 accepts it. What is the common practice for this kind o hangars in the US?
We a re performing the supervision of the project
Thanks for your opinions
We a re performing the supervision of the project
Thanks for your opinions





RE: Low expansion foam for Hangar type I
Gas and av gas itself kept outside the hanger routinely? (Not parking trucks or cars or fuel tanks inside, right?)
RE: Low expansion foam for Hangar type I
Generally, in civilian hangars we see hi-expansion foam + closed head sprinkler being the most economical option (option #3 under 409-6.1.1). Not too many foam-water deluge systems going into Group I hangars anymore, because nobody likes dealing with 16-20" supply piping, or the several-hundred thousand gallon reservoirs that become necessary if the existing airport supply can't cut it. I haven't seen too many low-level low expansion systems installed, but Viking's grate nozzles seem like a very interesting option.
What type of low expansion system do you have? Deluge, or water sprinkler + low level application?
Odd that the owner is having an issue after the acceptance test, unless he watched a youtube video of a hi-ex system discharging and wonders why his system doesn't fill the building with 5' of foam in a couple minutes.
R M Arsenault Engineering Inc.
www.rmae.ca
RE: Low expansion foam for Hangar type I
What kind of aircraft are in there?
RE: Low expansion foam for Hangar type I
RE: Low expansion foam for Hangar type I
@raccokpe:
hanger? Aircraft, right? yes
...etc) kept in fire-proof lockers for maintenance? yes
Gas and av gas itself kept outside the hanger routinely? yes
(Not parking trucks or cars or fuel tanks inside, right?) yes
Thank you
@skdesigner
Canada is great also,
Deluge, or water sprinkler + low level application? low level. Man operated water hoses
Yes, the owner has other 4 large hangars
TKs
@cdafd
Area = 14,475 m2
Entrance height, higher than 8.5 mt
Tks
RE: Low expansion foam for Hangar type I
R M Arsenault Engineering Inc.
www.rmae.ca
RE: Low expansion foam for Hangar type I
RE: Low expansion foam for Hangar type I
Any heavy maintence inside???
RE: Low expansion foam for Hangar type I
R M Arsenault Engineering Inc.
www.rmae.ca
RE: Low expansion foam for Hangar type I
RE: Low expansion foam for Hangar type I