Long hydraulic formulas

Card Set Information

Author:
Ccadena
ID:
275650
Filename:
Long hydraulic formulas
Updated:
2014-05-30 00:15:53
Tags:
Longs formula
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Description:
Long hydraulic formulas
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  1. -2 1/2" friction loss
    - 2 1/2" friction loss less than 100gpm
    • - 2q2+q
    • - 2q2+1/2q
  2. Open butt
  3. Smooth bore
  4. Sprinkler
    • GPM= 1/2P+15
    • psi= 2(GPM-15)
  5. Velocity of flow
    When pressure is known=  

    when head is known=  
  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
  9. Momentary nozzle reaction
  10. equivalent nozzle diameter


    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=
    • cylinder in gallons= 

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