TB 130 NEW LADDER PIPE ASSEMBLY

Question 1

TB 130 NEW LADDER PIPE

The LAFD has purchased the Akron Brass Company model _____ ladder pipe assembly

The assembly contains new features and components designed to make ladder pipe operations safer, more efficient, and allow for 1000 GPM flow.

Answer 1

1495

Question 2

TB 130 NEW LADDER PIPE

LTI and American LaFrance aerial ladder trucks using the Akron 1495 ladder pipe assembly may flow _____ GPM by using the ___” straight tip or the Akron Turbo Master Spray Nozzle.

Answer 2

1000

2”

Question 3

TB 130 NEW LADDER PIPE

Seagrave aerial ladder trucks will also use the Akron 1495 ladder pipe assembly, but are limited to 800 GPM using the 11⁄2” or 13⁄4” straight tip or the 500 GPM setting on the spray nozzle,

Answer 3

reference

Question 4

TB 130 NEW LADDER PIPE

LAFD Ladder Pipe Components:

• Ladder pipe Assembly with 21⁄2” In Line Shut-Off
• 4” Gate Valve Shut-Off (AKA cluster)
• 21⁄2” Stream Straightener
• Smooth Bore Nozzles (11⁄2”, 13⁄4” and 2”)
• Akron Turbo Master Spray Nozzle (350 to 1000 GPM) (assigned to random apparatus)

Answer 4

reference

Question 5

TB 130 NEW LADDER PIPE

The cluster must be attended while flowing water through the ladder pipe assembly.

Answer 5

reference

Question 6

TB 130 NEW LADDER PIPE

The stream straightener provided with the Akron 1495 (shorter than the stream straightener used with the previous issue Akron 1496) shall be utilized with all nozzles during ladder pipe operations.

Answer 6

reference

Question 7

TB 130 NEW LADDER PIPE

These pressures include pumping through the cluster, 100’ of 3” hose, the ladder pipe assembly and tip, with the aerial ladder extended to ___’. Friction loss for the supply line must be added to the pressures listed below to achieve proper pump pressure:

Tip, GPM, PSI

1 1/2 - 600, 150
1 3/4 - 800 - 170
2” - 1000 - 190

Akron Turbo Master Spray

setting 350 GPM - 140
setting 500 GPM - 160
setting 750 GPM - 180
setting 1000 GPM - 220

Hydro foam nozzle

660 - 175 PSI

Answer 7

70