Hyd. Pressure at PVB

Discussion in 'Irrigation' started by No Rush, Sep 9, 2010.

  1. No Rush

    No Rush LawnSite Member
    Posts: 203

    Yes, the entire Park will be irrigated, the rotors only require 35 PSI.
     
  2. Kiril

    Kiril LawnSite Fanatic
    Posts: 18,298

    The question still remains .... what is your dynamic pressure at your design flow (i.e. pressure at a flow rate of 35 GPM)?
     
  3. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 46,450

    Maybe he can use drip pipe with compression fittings for better flow :p
     
  4. No Rush

    No Rush LawnSite Member
    Posts: 203

    Zone: 55 @ 35 (GPM)

    Description: 1.5" Landscape Irrigation Meter
    Type: Meter
    Static Pressure: 55 (psi)
    Service Line Loss: 0.172 (psi)
    Meter Loss: 2.399 (psi)

    Static Pressure: 55 (psi)
    Service Line Loss: 0.17 (psi)
    Meter Loss: 2.4 (psi)
    Backflow Loss: 3 (psi)
    Master Valve Loss: 0 (psi)

    Valve Description: Hunter PGV-151 Globe
    Mainline Loss: 2.335 (psi)
    Valve Loss: 3 (psi)
    Lateral Loss: 2.211 (psi)
    Elevation: 0 (psi)
    Sprinkler Requirement: 35 (psi)

    Total Design Pressure: 48.117 (psi)
    Residual Pressure: 6.883 (psi)
     
  5. If it does turn out to be 68psi you will be in great shape for sure.
     
  6. hoskm01

    hoskm01 LawnSite Fanatic
    Posts: 5,690

    Out of morbid curiosity, what heads are you designing with/for?
     
  7. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Posts: 46,450

    Hunter blue nozzles atop 8-foot posts :)
     
  8. No Rush

    No Rush LawnSite Member
    Posts: 203

    Hunter PGPs spaced at 25ft apart.

    This park is in a VERY windy location right on the Texas Coast.
     
  9. Screams low angle nozzles.
     
  10. No Rush

    No Rush LawnSite Member
    Posts: 203

    That was my orginal plan but, on twelve foot posts and let the wind do it's job. This city would probably buy it too. :laugh:
     

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