Foam Equipment

Question 1

What PSI do foam eductors operate at?

Answer 1

200 PSI.

Question 2

It is necessary that the nozzle is ______ with the eductor.

Answer 2

Calibrated.

Question 3

What types of foam is the eductor designed to be used with?

Answer 3

All types of foam.

Question 4

What 3 features does the foam eductor have?

Answer 4

Check valve to prevent water back into the foam
See-through spinal reinforced pick-up tube with removable strainer.
Large, easy-to-dial metering valve with positive stops.

Question 5

What are the positive stops on the metering valve on the eductor.

Answer 5

0%, 1%, 2%, 3%, 6%.

Question 6

What kind of foam can be used on Hydro-carbon liquids?

Answer 6

3% foam.

Question 7

What kind of foam can be used on alcohol-based flammable liquid incidents?

Answer 7

6% foam.

Question 8

What kind of nozzle is used for 3% foam application? (Hrydro-carbon liquids)

Answer 8

Task-force-tip (TFT) nozzel can be used but the air aspirating nozzles are preferred for all application.

Question 9

What kind of nozzle is used for 6% foam application? (Alcohol-based flammable liquids)

Answer 9

ONLY air aspirating nozzles.

Question 10

What size and lenght of hose should be used from the eductor to the nozzle when operating foam?

Answer 10

100ft-250ft of 1 ¾ hose.

Question 11

In extreme situations ___ ft of ____ hose can be used when operating foam.

Answer 11

400ft, 1 ¾ hose.

Question 12

What must be done after each use to make sure everything is ready for the next use? When should those actions be done?

Answer 12

After each use the metering valve, check valve, and strainer must be flushed clear of all concentrate and made ready for next use. This should be done prior to leaving the scene.

Question 13

What concentrate is the department presently using?

Answer 13

The department is presently using the National concentrate. (AFFF-TC)
This can be used in either 3% solution for hydro-carbon type fires or 6% solution for alcohol-based fires.