Long hydraulic formulas

  1. -2 1/2" friction loss
    - 2 1/2" friction loss less than 100gpm
    • - 2q2+q
    • - 2q2+1/2q
  2. Open butt
    • Image Upload 1
  3. Smooth bore
    Image Upload 2
  4. Sprinkler
    • GPM= 1/2P+15
    • psi= 2(GPM-15)
  5. Velocity of flow
    When pressure is known=  Image Upload 3

    when head is known=  Image Upload 4
  6. To change (fps) to inches per minute
    Multiply by 12
  7. To change (fps) to feet per minute
    Multiply by 60
  8. nozzle reaction
    Image Upload 5
  9. Momentary nozzle reaction
    Image Upload 6
  10. equivalent nozzle diameter
    Image Upload 7

    or just add up gpms
  11. pressure when head is known
    Pressure=   .434(H)
  12. Head when pressure is known
    head=   2.304(P)
  13. Drafting:
    -max lift
    -drop in atmosphere psi will lift
    • Max- 33.9'
    • 1 psi drop pressure will lift 2.3"
  14. Volume of:
    -square/rectangle
    -cylinder cubic ft
    -cylinder in gallons
    • Sq/rec= LxWxH
    • cylinder cubic ft= Image Upload 8
    • cylinder in gallons= Image Upload 9
Author
Ccadena
ID
275650
Card Set
Long hydraulic formulas
Description
Long hydraulic formulas
Updated