DCFD Pumps

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The flashcards below were created by user JB3989 on FreezingBlue Flashcards.

1. Cubic foot of water weighs
62.5 lbs
2. One gallon of water weighs
8.35 lbs
3. Pressure formula for column of Water
P = .434 x H
4. Height formula for column of Water
H = 2.304 x P
5. Atmospheric Pressure at Sea Level
14.7psi
6. A perfect Positive Displacement Pump can draft water
33.9 feet
7. A pump in excellent condition can draft? A pump in average condition?
• Excellent - 28ft
• Average - 26ft
8. In the primer oil reservoir, what is the capacity? What type of oil is used?
• Four to Six quart capacity
• S.A.E. 30 motor oil
9. Maximum discharge pressure
300psi
10. When switching to Volume to Pressure, or Pressure to Volume reduce the pump pressure to
50psi
11. Engine Pressure Formula
EP = NP + FL + SA + E
12. Relay Formula
EP = 20 + FL + E
13. How is friction loss calculated for a Ladder Pipe
By how far the ladder has been extended
14. Maximum layout
Is the distance the pump can supply proper pressure and gallonage for efficent operation.
15. What is the distance for a maximum layout of a single lay? Dual lay?
• Single is 350 ft
• Dual is 800 ft
16. Nozzle Pressure's
CVFSS "Fog", Smooth Bore (Master Stream), Smooth Boore (Handheld)
• Fog is 75psi
• Master Stream is 80psi
• Handheld is 50psi
17. Tip Sizes and Flow (GPM)
Handheld Smooth Bore
• 1" 210 GPM
• 1 1/8" 265 GPM
• 1 1/4 325 GPM
18. Tip Sizes and Flow (GPM)
Master Stream Smooth Bore
• 1 3/8" 500 GPM
• 1 1/2" 600 GPM
• 1 3/4" 800 GPM
• 2" 1000 GPM
19. Friction Loss "Q" Formula for 2 1/2"
2Q2
20. Friction Loss "Q" Formula for 3"
Q2
21. Friction Loss "Q" Formula for 4"
Q2/5
22. Friction Loss "Q" Formula for 5"
Q2/15
23. Small Line GPM and Friction Loss per 100ft
• 13 GPM
• 30psi
24. 1 1/2" Revlving Dist. Nozzle GPM and Friction Loss per 100ft
• 115 GPM
• 30psi
25. 2 1/2" Fog Nozzle GPM and Friction Loss per 100ft
• 250 GPM
• 12psi
26. Low Velocity Fog Applicator GPM and Friction Loss per 100 ft
• 115 GPM
• 30 psi for 1 1/2"
• 3 psi for 2 1/12"
27. Eductor (Foam Position) GPM and Friction Loss per 100ft
• 95 GPM
• 5psi
28. Lucas Valve (Ammonia Flush) GPM and Friction Loss per 100ft
• 200 GPM
• 10 psi
29. Peri-Jet and Peri-Jet Syphon GPM and Fricition Loss per 100ft
• Peri-Jet 200 GPM and 10 psi
• Peri-Jet Syphon 420 GPM and 40 psi
30. 2 1/2" Revolving Dist. Nozzle GPM and Friction Loss per 100ft
• 425 GPM
• 40 psi
31. JN-200 Fog Nozzle 30 Degrees and 90 Degrees GPM
• 30 Degrees - 600 GPM
• 90 Degrees - 1000 GPM
32. Friction Loss for a Cellar Pipe
50 psi
33. Friction Loss for Ladder Pipe Assembly (Siamese, 100ft of 3, Ladder, Pipe)
50 psi
34. Friction Loss for Monitor Nozzle or Wagon Pipe
20 psi
35. Friction Loss for Standpipe
25 psi
36. Friction Loss for pre-piped Ladder Pipe
115 psi
37. E.P. for Sprinkler Systems
125 psi
38. E.P. for Sprinkler/Standpipe Systems
175 psi
39. E.P. for Tower 3
175 psi to Trimese
40. E.P. for Foam Eductor
200 psi at the Eductor
41. Temperatures of water in the pump
Normal should be 160 degrees and 200 degrees when operating
42. Hydrant Capacity Formula's
• PD = SP - RP
• %D = PD/SP
43. If % Drop is 0 -10% you can flow
3 times the amount flowing
44. If % Drop is 11% - 15% you can flow
2 times the amount flowing
45. If % Drop is 16% - <25% you can flow
1 time the amount flowing
46. E.P when supplying to another company
E.P when supplying through Hydrant Valve
• 125 psi
• 150 psi through Hydrant Valve

Card Set Information

 Author: JB3989 ID: 99231 Filename: DCFD Pumps Updated: 2011-08-31 21:33:30 Tags: DCFD Folders: Description: Study Material Show Answers:

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