OFD Hydraulic SOP's.txt

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Author:
Firedawgofd
ID:
195555
Filename:
OFD Hydraulic SOP's.txt
Updated:
2013-02-05 19:29:37
Tags:
Fire Hydraulics
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OFD Hydraulic Flashcards
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  1. GPM Formula
    29.7 Dsqrt{NP}
  2. Friction Loss Formula
    • 2Q+ Q
    • 1. Q = GPM /100
    • 2. If GPM is less than 100 use 2Q2 + 1/2Q
  3. Smooth-Bore Handline Nozzle Pressure
    50 PSI
  4. Smooth-bore Master Stream Nozzle Pressure
    80 PSI
  5. All Fog Nozzles NP
    100 PSI
  6. Handline
    GPM for 1/2 tip @ 50 PSI
    50 GPM
  7. Handline
    GPM for 5/8" tip @ 50 psi
    80 GPM
  8. Handline
    GPM for 3/4" tip @ 50 psi
    120 GPM
  9. Handline
    GPM for 7/8" tip @ 50 psi
    160 GPM
  10. Handline
    GPM for 15/16" tip @ 50 psi
    185 GPM
  11. Handline
    GPM for 1" tip @50 psi
    200 GPM
  12. Handline
    GPM for 1 1/8" tip @ 50 psi
    250 GPM
  13. Handline
    GPM for 1 1/4" tip @ 50 psi
    325 GPM
  14. Master Stream
    GPM for 1 1/4" tip @ 80 psi
    400 GPM
  15. Master Stream
    GPM for 1 3/8" tip @ 80 psi
    500 GPM
  16. Master Stream
    GPM for 1 1/2" tip @ 80 psi
    600 GPM
  17. Master Stream
    GPM for 1 5/8" tip @ 80 psi
    700 GPM
  18. Master Stream
    GPM for 1 3/4" tip @ 80 psi
    800 GPM
  19. Master Stream
    GPM for 2" tip @ 80 psi
    1000 GPM
  20. Tiller ladder pipe fog nozzle
    calculate @ _____ GPM
    1000 GPM
  21. 1-3/4" Preconnect
     
    1. GPM
    2. PSI
    • 1. 130 GPM
    • 2. 130 PSI
  22. 2-1/2" Preconnect

    1. GPM
    2. PSI
    • 1. 250 GPM
    • 2. 130 PSI
  23. 1" Boosterline

    1. GPM
    2. PSI
    • 1. 30 GPM
    • 2. 150 PSI
  24. 1-3/4" High Rise pack with 15/16" tip

    1. GPM
    2. PSI
    3. FL per 100'
    4. Gated Wye
    5. NP
    • 1. 185 GPM
    • 2. 92 PSI
    • 3. 32 PSI FL
    • 4. 10 PSI
    • 5. 50 PSI NP
  25. 2-1/2" High Rise pack with 1-1/8" tip

    1. GPM
    2. PSI
    3. FL per 100'
    4. NP
    • 1. 250 GPM
    • 2. 65 PSI
    • 3. 15 PSI
    • 4. 50 PSI
  26. FL Constant for Head Pressure
    1/2 PSI per foot
  27. FL Constant per Story (Loss/Gain)
    5 PSI
  28. FL Constant for Wye/Siamese
    10 PSI
  29. FL for Masterstream Appliance w/portable base monitor.
    25 PSI + Nozzle
  30. FL for Masterstream Mounted on Engine (Deck Gun)
    25 PSI + Nozzle
  31. FL for Standpipe
    25 PSI
  32. FL for Wildland T
    5 PSI
  33. FL for Sprinkler connection
    150 PSI
  34. FL for Tiller Aerial
    110 PSI + Nozzle
  35. Hose Conversion Factor
    1" to 2-1/2"
    GPM x 11
  36. Hose Conversion Factor
    1-1/2" to 2-1/2"
    GPM x 4
  37. Hose Conversion Factor
    1-3/4" to 2-1/2"
    GPM x 2
  38. Hose Conversion Factor
    4" to 2-1/2"
    GPM x .3
  39. Hose Conversion Factor
    3-1/2" to 2-1/2"
    GPM x .4
  40. Portable Foam Eductor for Class A Foam

    Direct attack
    Overhaul
    Exposure Protection
    Brush (pretreat)
    • Direct attack ............ 0.3% - 0.5%
    • Overhaul ................. 0.2% - 0.4%
    • Exposure Protection .. 1.0%
    • Brush (pretreat) ....... 0.7% - 1.0%
  41. Portable Foam Eductor

    Class B foam set eductor at?
    3%
  42. Portable Foam Eductor
    1. Length of Hoseline
    2. Pump at what pressure
    3. Nozzles must be ____ ____ for foam
    • 1. 150' to 300'
    • 2. 200 PSI
    • 3. Open Full
  43. Relay Pumping Guidelines
    Recommended hose?
    Max PSI Discharge Pressure?
    Minimum residual intake pressure?
    • 4" Hose
    • 200 PSI
    • 10 PSI
  44. Relay Pumping 4" Hose

    How far can 600 GPM be pumped
    2300 feet

    • (600 GPM has 8 PSL FL)
    • (8 PSI x 23 = 184 PSI leaving 16 PSI residual)
  45. Relay Pumping 4" Hose

    How far can 750 GPM be pumped
    1500 feet

    • (750 GPM has 12 PSI FL)
    • (12 PSI x 15 =180 PSI, leaving 20 PSI residual)
  46. Relay Pumping 4" Hose

    How far can 100 GPM be pumped?
    900 feet

    • (1000 GPM has 21 PSI FL)
    • (21 x 9 = 189 PSI leaving 11 PSI residual)
  47. Relay Pumping 2 1/2" Hose

    How far can 250 GPM be pumped?
    • 1200 feet
    • (250 GPM has 15 PSI FL)
    • (15 PSI x 12 = 180 PSI leaving 20 PSI residual)
  48. Relay Pumping 2 1/2" Hose

    How far can 325 GPM be pumped?
    • 700 feet
    • (325 GPM has 25 PSI FL)
    • (25 PSI x 7 = 175 PSI leaving 25 PSI residual)
  49. Relay Pumping 2 1/2" Hose

    How far can 400 GPM be pumped?
    500 ft

    • (400 GPM has 36 PSI FL)
    • (36 PSI x 5 = 180 PSI leaving 20 PSI residual)
  50. Transfer Valve

    Stored in which Mode?
    Pressure (series) Position
  51. Transfer Valve

    Switch to volume (parallel) when?
    1
    2
    3
    4 (New)
    • 1 Pumping more than 50% of pump's capacity
    • 2 When pumping to sprinkler system
    • 3 At draft
    • 4 Needed to prevent excesses pressures

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