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APPARATUS OPERATION TRAINING TO
PUMPING APPARATUS DRIVER/OPERATOR BRIDGE
Field Calculations Study Guide
PDP = NP + TPL
PDP
: Pump Discharge Pressure
NP
: Nozzle Pressure
Total Pressure Loss (TPL) = Friction Loss (FL) + Appliance (APP) ± Back Pressure (BP)
FL = CQ2L C = Coefficient Q = GPM 100 L = Length of Hose 100
NP
Solid Stream/Barrel Tip Nozzle (Handline) 50
Solid Stream/Barrel Tip Nozzle (Master Stream) 80
Standard Fog Nozzle 100
Low Pressure Fog Nozzle 50 or 75
Hose Diameter GPM FL per 100' Reason for GPM
1" 30 15
1½" 30 2 1½" to 1"
1½" 60 10 1½" wyed to 1"
1½" 125 35
1½" 185 80 CAFS 15/16" nozzle flowing water
2½" 30 -- 2½" to 1½" to 1"
2½" 125 5 2½" to 1½"
2½" 200 10
2½" 250 15
2½" 300 20
2½" 400 30 RAN @ 50 psi NP
2½" 500 50 RAN @ 75 psi NP
4" 1,000 20
APP
Ladder Pipe 25 psi Deluge/Turret 25 psi
Dry Standpipe 25 psi FDC Sprinkler System 150 psi
Wye, Siamese Connection, and RAM:
Less than 350 gpm 0
350 gpm or more 10 psi
BP
Per floor (above ground level) or 10' upgrade +5 psi
Per floor (below ground level) or 10' downgrade -5 psi
Smooth Bore Tip Size GPM
15/16" 185
1" 200
1 1/8" 300
1 3/8" 500
1 1/2" 600
1 3/4" 800
2" 1,000
Author
chloeko
ID
54323
Card Set
hyd
Description
hyd
Updated
2010-12-08T17:10:58Z
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