Pump Theory Pump Theory Darley & Co.Darley & Co.

Serving the World Fire Industry for more Serving the World Fire Industry for more than 95 yearsthan 95 years

Pump Theory Pump Theory Darley & Co.Darley & Co.

Introduction to PumpsIntroduction to Pumps

Types of PumpsTypes of Pumps

Piston PumpsPiston PumpsPositive Displacement PumpsPositive Displacement PumpsRotary Vane PumpsRotary Vane PumpsCentrifugal PumpsCentrifugal Pumps2 Stage Pumps2 Stage PumpsHigh Pressure Booster PumpsHigh Pressure Booster Pumps

Piston PumpsPiston Pumps

High pressure low volumeHigh pressure low volumeRequire pressure relief valveRequire pressure relief valve

Piston PumpPiston Pump

•• InseInse rt rt DraDra wing wing HereHere

Uses for Piston PumpsUses for Piston Pumps

Foam injectionFoam injectionPressure washerPressure washerAir compressorAir compressor

Positive Displacement PumpPositive Displacement Pump

•• Rotary screw air compressorRotary screw air compressor•• Hydraulic Hydraulic •• Requires Pressure Relief ValveRequires Pressure Relief Valve

Positive Displacement PumpPositive Displacement Pump

Uses For Positive Displacement Uses For Positive Displacement PumpsPumps

•• Air Compressor for CAFSAir Compressor for CAFS•• Hydraulic Fluid PumpingHydraulic Fluid Pumping•• High PressureHigh Pressure

Rotary Vane PumpRotary Vane Pump

•• Vacuum PumpVacuum Pump•• Negative Pressure PumpNegative Pressure Pump•• No Pressure Relief RequiredNo Pressure Relief Required

Rotary Vane PumpRotary Vane Pump

Uses For Rotary Vane PumpUses For Rotary Vane Pump

•• Priming Main PumpPriming Main Pump•• Vacuum PumpVacuum Pump•• Negative Pressure pumpNegative Pressure pump

Centrifugal PumpCentrifugal Pump

•• Fire Fighting Pump Fire Fighting Pump •• High volumes pressuresHigh volumes pressures

up to 250 PSIup to 250 PSI•• Dirty Water Not A Big ChallengeDirty Water Not A Big Challenge

Uses for Centrifugal PumpsUses for Centrifugal Pumps

High Volumes for Fire FightingHigh Volumes for Fire FightingTanker fillingTanker fillingWater relayWater relayPump and roll with PTO applicationPump and roll with PTO application

2 Stage pumps2 Stage pumps

•• High pressure medium volumeHigh pressure medium volume•• Pressures above 250 PSIPressures above 250 PSI•• Pressure/Volume Transfer ValvePressure/Volume Transfer Valve

JMP500 PumpJMP500 Pump

Uses for 2 Stage PumpsUses for 2 Stage Pumps

Relay pumping with long hose laysRelay pumping with long hose laysReduced fuel usageReduced fuel usagePump and roll with PTO applicationPump and roll with PTO application

High Pressure PumpHigh Pressure Pump

•• High pressure low volumeHigh pressure low volume

High Pressure PumpHigh Pressure Pump

Uses for High Pressure PumpUses for High Pressure Pump

•• High pressure low volumeHigh pressure low volume•• Extended reach for tall buildingsExtended reach for tall buildings

High Pressure Booster PumpHigh Pressure Booster Pump

Use with Main Pump For High PressureUse with Main Pump For High PressureIndependent High Pressure LineIndependent High Pressure Line

High Pressure Booster PumpHigh Pressure Booster Pump

Uses for High PressureUses for High Pressure Booster PumpBooster Pump

•• Simultaneous High and Low Pressures Simultaneous High and Low Pressures on Independent Hose Lineson Independent Hose Lines

•• Hose Reel Booster LineHose Reel Booster Line

Types of Pump PackingTypes of Pump Packing

•• Rope or Ring style packingRope or Ring style packing•• Mechanical seal packingMechanical seal packing•• Injection style packingInjection style packing

Ring or Rope style PackingRing or Rope style Packing

Uses for Rope or Ring PackingUses for Rope or Ring Packing

•• Portable Pump Shaft SealPortable Pump Shaft Seal•• Valve Stem SealValve Stem Seal

Mechanical Seal PackingMechanical Seal Packing

•• Insert Drawing HereInsert Drawing Here

Uses for Mechanical Seal PackingUses for Mechanical Seal Packing

•• Centrifugal Pump Shaft SealCentrifugal Pump Shaft Seal•• Non Adjustable for less Non Adjustable for less

maintenancemaintenance

Injection PackingInjection Packing

Uses for Injection PackingUses for Injection Packing

•• Centrifugal Pump Shaft SealCentrifugal Pump Shaft Seal•• Adjustable for Less Maintenance TimeAdjustable for Less Maintenance Time•• Replenishable W/O disassembling the Replenishable W/O disassembling the

PumpPump

Summary Summary

•• 95 years of Service after the Sale95 years of Service after the Sale•• Lowest parts maintenance costLowest parts maintenance cost•• Best parts delivery in the industryBest parts delivery in the industry•• Injection packingInjection packing•• No special tools requiredNo special tools required•• Free training classes twice a yearFree training classes twice a year•• Prices meet or beat competitionPrices meet or beat competition

Darley & Co.Darley & Co.

Serving the World Fire industry for Serving the World Fire industry for more than 95 yearsmore than 95 years

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