Directive 218 Fireground Hydraulics

P.S.I for Preconnect 1

121 P.S.I
P.S.I for Preconnect 2

128 P.S.I
P.S.I for 2 1/2 Preconnect

125 P.S.I
GPM for 2 1/2 Preconnect

250 GPM
GPM for 15/16 Smooth Bore

180 GPM
GPM for 1 3/4 Hand lines

95 GPM
Amount of Supply LDH carried on SCFD Engines that use LDH as main supply lines

1200 feet
Amount of 3 inch hose carried by SCFD Engines that use LDH as main supply line

Minimum of 400 feet
Length of supply line laid down that requires a relay pumper to be put in place

500 Feet
What is the Pump Discharge Pressure formula?

EP = NP + FL +/-APP + ELEV
Booster Line GPM

65 GPM
Booster Line Pump Pressure?

180 PSI
2 1/2 inch Stack Tip sizes and GPM?
- 1 inch - 200 GPM
- 1 1/8 inch - 250 GPM
- 1 1/4 inch - 300 GPM
Maximum and minimum lengths on 1 3/4 hose?
- minimum - 150 feet
- maximum - 300 feet
Colors of preconnects?
- Preconnect 1 - Red
- Preconnect 2 - Yellow
- 2 1/2 Preconnect - Orange
Boosterlines can be used for?

overhaul only
All attack lines are loaded with a?

Triple Layer Load
PSI for fog nozzles and smooth bore handlines, and smooth bore master streams?
- Fog Nozzle - 100 PSI
- Smooth Bore Handline - 50 PSI
- Smooth Bore Master Stream - 80 PSI
Supplying a circular sprinkler connection must have a pump discharge pressure of?

150 PSI
How shall all valves be opened and why?

slowly, and to avoid water hammer

Author

SCFD

322274

Card Set

Directive 218 Fireground Hydraulics

Description

Fireground Hydraulics

Updated

2016-08-06T23:12:49Z

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