By the Numbers Flashcards
Max Density of Water
39.2°F
Boiling Point of Water
212°F
Weight of 1 Gallon of Water
8.33 Pounds
Cubic Inches in 1 Gallon of Water
231
Cubic Inches in 1 Cubic Foot of Water
1728
Gallons in 1 Cubic Foot of Water
7.48
Weight of a 1 Square Inch Column of Water 1 Foot High
.434 PSIG
How High 1 PSIG will Lift Water
2.31 Feet
____ PSIG = 1 Inch of Mercury
0.49 PSIG
Height a Fire Pump in Good Condition can Lift Water
25 Feet
Nozzle Pressure for Smooth Bore Master Stream
80 PSI
Nozzle Pressure for Smooth Bore Hand Line
50 PSI
Nozzle Pressure for Master Stream Fog Nozzle at 500 GPM
100 PSI
Nozzle Pressure for Master Stream Fog Nozzle at 750 GPM
110 PSI
Nozzle Pressure for Master Stream Fog Nozzle at 1000 GPM
120 PSI
Coefficient in GPM Formula for Smooth Bore Nozzles
29.7
Pressure Pumped to Foam Eductor / Max PSI for 3 Inch Hose
200 PSI
Max PSI for 5 Inch Hose
185 PSI
Weight of a Full 100 Foot Section of LDH
943 Pounds
Weight of a Dry 100 Foot Section of LDH
110 Pounds
Coefficient Used in Fog Stream Nozzle Reaction Equation
0.0505
Pressure Pumped to Commercial Sprinkler Systems
150 PSI
Pressure Pumped to Residential Sprinkler Systems
100 PSI
Standard Sprinkler Head Orifice Size
1/2 Inch
Number of Active Sprinkler Heads a 1250 GPM Pumper can Supply
60
Amount of Area Covered by 1 Sprinkler Head
100 Square Feet
Max Water a Standard Sprinkler Head can Deliver at 15 PSI
22 GPM
Minimum Water Needed to Supply Standard Sprinkler Head
15 GPM
Nozzle Pressure of the 125 GPM Mystery Fog Nozzle
75 PSI
Pi
3.1416
