sprinklers. nozzles controls distance and flow interchangeable
TRANSCRIPT
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SprinklersSprinklers
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NozzlesNozzles
Controls distance and flowControls distance and flow
InterchangeableInterchangeable
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Operating pressureOperating pressure
PSI – pounds per square inchPSI – pounds per square inch– Rotary sprinklers: 35 to 45 psiRotary sprinklers: 35 to 45 psi– Sprayheads: <30 psiSprayheads: <30 psi
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FlowFlow
GPM (Gallons per minute)GPM (Gallons per minute)
Controlled by nozzle size and PSIControlled by nozzle size and PSI
Larger nozzles have greater flow and Larger nozzles have greater flow and require greater PSIrequire greater PSI
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RadiusRadius
Distance from the headDistance from the head
Increases with PSI and nozzle sizeIncreases with PSI and nozzle size
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Water distribution patternWater distribution pattern
Uniformity around sprinklerUniformity around sprinkler
Head-to-head spacingHead-to-head spacing
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ArcArc
Portion around sprinkler that gets wateredPortion around sprinkler that gets watered
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TrajectoryTrajectory
Angle above groundAngle above ground
Low trajectory Low trajectory – WindWind– Under treesUnder trees
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SPRAY HEADSSPRAY HEADS
No moving parts, except pop-upNo moving parts, except pop-up
Small areasSmall areas– 8’ to 15’8’ to 15’
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SPRAYHEADSSPRAYHEADS
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Blow-out NozzlesBlow-out Nozzles
Purge debris from pipesPurge debris from pipes
Pull up riser to install nozzlePull up riser to install nozzle
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Fixed Spray NozzleFixed Spray Nozzle
Have matched precipitation rate (MPR)Have matched precipitation rate (MPR)– Flow matched to arcFlow matched to arc
Q = 1 gpmQ = 1 gpm
H = 2 gpmH = 2 gpm
F = 4 gpmF = 4 gpm
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VAN NozzleVAN Nozzle
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Color-coded NozzlesColor-coded Nozzles
Buy nozzles separatelyBuy nozzles separately
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Pressure Regulating ScreensPressure Regulating Screens
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Rotary NozzlesRotary Nozzles
Fit on sprayhead bodyFit on sprayhead body
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Rotary NozzlesRotary Nozzles
Low driftLow drift
Pressure compensatingPressure compensating
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ROTARY SPRINKLERSROTARY SPRINKLERS
Rotating streamRotating stream
Large areasLarge areas– 15’ to 100’15’ to 100’
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ROTARY SPRINKLERSROTARY SPRINKLERS
Gear-driven sprinklersGear-driven sprinklers
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Gear-driven Gear-driven SprinklersSprinklers
Nozzle treeNozzle tree
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Small RotarySmall Rotary
15’ to 25’15’ to 25’
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Standard RotaryStandard Rotary
22’ and 40’22’ and 40’
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Interchangeable NozzlesInterchangeable Nozzles
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Interchangeable NozzlesInterchangeable Nozzles
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Interchangeable NozzlesInterchangeable Nozzles
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Adjusting ArcAdjusting Arc
One side is adjustableOne side is adjustable
The other side fixedThe other side fixed
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Gear-driven SprinklersGear-driven Sprinklers
Break-up screwBreak-up screw– Shorten radiusShorten radius
– Holds in nozzleHolds in nozzle
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ROTARY SPRINKLERSROTARY SPRINKLERS
Impact sprinklersImpact sprinklers– hammer to move hammer to move
sprinkler, makes the sprinkler, makes the sprinkler soundsprinkler sound
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Impact SprinklerImpact Sprinkler
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Valve-in-Head Valve-in-Head SprinklerSprinkler
Gear-driven sprinklerGear-driven sprinkler
Valve in bottomValve in bottom
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Valve-in-Head Valve-in-Head SprinklerSprinkler
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Swing JointSwing Joint
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Swing pipeSwing pipe
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Swing pipeSwing pipe
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Swing pipeSwing pipe
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Pressure Regulating SprinklersPressure Regulating Sprinklers
PRSPRS
No matter what PSI goes in sprinkler, a No matter what PSI goes in sprinkler, a specific PSI comes outspecific PSI comes out
All sprinklers run at same PSIAll sprinklers run at same PSI
Prevents over PSIPrevents over PSI
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Check ValveCheck Valve
Installed in bottom of sprinklerInstalled in bottom of sprinkler
Prevents sprinkler from weeping after it Prevents sprinkler from weeping after it runs due to elevationruns due to elevation
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