foam Flashcards
gpm when flowing elkhart?
95
gpm when flowing angus?
95
pump what pressure to the elkhart?
200
pump what pressure to the angus?
150
60-150 med expansion
max 1 3/4 hose after eductor
elkhart and Angus
300’
max 1 1/2 hose after eductor ?
angus and elkhart
150’
Foam ade 2000
what percent for class A
.10-.50
Foam Ade 2000
cars truck equipment
.50-1.0%
non polar solvent
example gasoline
3%
polar solvents
example alcahol ethanol methanol
6%
class A foam proportioned at
.3-.5
class b foam proportioned at
minimum 1%
often 3%-6%
(1) class a 5gallon foam bucket at .3 last ?
1500 gallons
can the TFT educter be used for class A foam?
yes
AFFF foam water based and good for
fuel spills
hydracarbon
AR AFFF good for what type of spills?
alcahol based spills
IE acetone
what foam is stocked at
logs
1% AFFF
advantages to protein foam
more durable and heat resistant blanket.
biodegradeable
with class b foam
how long will 1 % last
500 gal
1 tank and 1 bucket of 1% will cover
300 square feet
(17’x17’ square)
3 foam application methods
rain down
roll on
bank down
what happens to the foam eductor if the back pressure is greater than 65-70%
foam cannot be made
can automatic nozzles be used with eductors?
yes as long as hose length is under 200’
gpm for TFT eductor
125 gpm
inlet pressure on TFT eductor
200
one feature of the elkhart that the other two dont have?
water only bypass
elkhart inlet size
2 1/2
tft and angus inlet size
1 1/2
elkhart foam percentages
1, 3, and 6%
angus foam percent
1-6%
TFT foam percents
.25 .5 1, 3, and 6%
