Training Bullitin 103 Foam Dispensing Equipment Flashcards
How much does foam increase the effectiveness of water?
3 to 5 times
What percent of class b foam flow land on the flammable liquid?
80 percent
What is the class b foam ratio for the hydro foam 660 nozzle?
From 3 to 1 to 6 to 1
What is the 660 foam stream able to withstand?
Strong winds
At what pressure is the 660 hydro foam nozzle able to operate at?
May operate at 75 pounds or less
What is the flow and reach of the hydro foam nozzle?
660 gallons per minute with a reach up to 180 feet
What is the maximum length of 1.5 inch hose from the JRC to the hydro foam nozzle?
1000 feet
How much foam is used when flowing the 660 hydro foam nozzle?
20 gallons per minute
The in line foam eductor can be used with what types of foam?
Class A or class B
What nozzle is used when using the in line foam eductor?
125 gallons per minute nozzle
What is the maximum length of hose used with the in line foam eductor?
150 feet for inch and a half
250 feet for inch and three quarter
What do you pump to the in line foam eductor inlet?
200 pounds
What is the pressure at the discharge outlet of the in line foam eductor when pumping 200 pounds to the inlet?
130 pounds
What ratio of foam is to be used when using the in line foam eductor?
3 percent class b .5 to 1 percent class a foam
How much do you reduce nozzle pressure when going from foam to water on the in line foam eductor?
10 percent on the selector knob
What is the expansion ratio of foam in the bubble cup?
8:1
What is the nozzle pressure, gpm, and friction loss of the bubble cup on 1” line?
NP- 100
GPM- 10/40
FL of 1”- 25 psi
In what position does the cup of the bubble cup nozzle need to be in order to flow water only?
Retracted
After how much time will a Class A foam blanket break down?
15-30 minutes
At what temperature does class A foam break down?
170 degrees
At what percent shall class A foam be for a thicker blanket?
0.6-1%
