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• ### Pumps, Fans and Turbines - Horsepower

H = Head height, ft = Efficiency coefficient. Horsepower Required to Drive Hydraulic Pump . HP = GPM X PSI X .0007 (this is a 'rule-of-thumb' calculation) Where: GPM = Gallonsper Minute PSI = Pounds per Square Inch .0007 = Rule of Thumb Constant for Power HP = Horse Power #2 Horsepower required to Drive a Hydraulic Pump . P HP = q p 1714 . where

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• ### Hydraulic Pump Horsepower Equation - Engineers Edge

HP = { Head * Capacity * Specific Gravity over 3960 } Use the tool to see how changes to these variables effect the overall horsepower output. Look for future blogs, where we’ll take this calculation a step further and see how we can calculate the efficiency of a pump based on the relationship between input and output horsepower.

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• ### How to Calculate Pump Horsepower - Pivotal Pumps

2021-5-7 · Horsepower required to pump water. Energy imparted to water by the pump is called water horsepower - and can be calculated as. Pwhp = q h SG (3960 μ) (1) where. Pwhp = water horsepower (hp) q = flow (gal/min) h = head (ft) SG = 1 for water Specific Gravity. μ = pump efficiency (decimal value)

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• ### Pumping Water - Required Horsepower

water horsepower: Q = flow rate or discharge: H = total head: n = pump efficiency: BHP = brake horsepower: NPSH = net positive suction head: V = velocity of fluid or liquid: p = impeller inlet pressure: p v = vapor pressure of fluid or liquid: SW = specific weight of fluid or liquid: g = acceleration of gravity

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• ### How to Calculate Water Pump Horsepower: 14 Steps

2019-5-22 · water horsepower; the pump head; of a centrifugal pump. This performance data will be derived from the Euler’s turbomachine equation: Shaft torque: T shaft = ρQ(r 2 V t2 – r 1 V t1) Water horsepower: P w = ω

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• ### Pump Design Equations Formulas Calculator Water

2017-9-5 · Mechanical horsepower is a unit of work, and is defined as 550 ft./lb. per second, or more commonly in pumping applications as 33,000 ft./lb. per minute. The work performed in moving a liquid is a function of the weight of the liquid and the total head or differential pressure output …

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• ### What is Pump Head – Performance Curve of

Water Horsepower is the energy or power added to water by the pump. Calculate the HP, Flow Rate or Discharge, and Total Head using this simple online calculator. Water Horsepower Calculator. I want to calculate. Water Horsepower(WHP)Flow Rate or Discharge(Q)Total Head(H) Flow Rate or Discharge(Q) …

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• ### Horsepower Calculations for Pump Selection |

Use this form to estimate the brake horsepower required. Brake horsepower is the power out of the drive motor, and the power into the water pump and is how most pumps and drive motors are specified. Also calculate the total power requirements (energy use rate). The pump efficiency depends on the pump and the pressure and flow that the pump is ...

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• ### Pump Horsepower Characteristics – Cycle Stop Valves,

The standard BHP formula is flow X head X 100 divided by 3960 X Efficiency. Our Horsepower calculator will make the math easy for you. For instance a submersible that will produce 40 GPM at 310' has efficiency of 50%. The HP calculator shows the HP required at 6.26 HP. The same pump restricted to 5 GPM, delivers 420' of head with an efficiency ...

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• ### Converting Pump Head to Pressure

2017-3-6 · Example - Power pumping Water 1 m3/h of water is pumped a head of 10 m.The theoretical pump power can be calculated as P h 3= (1 m /h) (1000 kg/m 3) (9.81 m/s2) (10 m) (3.6 106) = 0.027 kW Shaft Pump Power The shaft power - the power required transferred from the motor to the shaft of the pump - depends on the

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• ### Hydraulic Horsepower - an overview | ScienceDirect

Since the pump develops a head H at a capacity Q, the power required by the pump is proportional to the product of H and Q. If the efficiency is assumed to be 100%, the power required is referred to as hydraulic horsepower (HHP) in USCS units. In SI units, it is called the hydraulic power in kW.

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• ### Pump Design Equations Formulas Calculator Brake

water horsepower: Q = flow rate or discharge: H = total head: n = pump efficiency: BHP = brake horsepower: NPSH = net positive suction head: V = velocity of fluid or liquid: p = impeller inlet pressure: p v = vapor pressure of fluid or liquid: SW = specific weight of fluid or liquid: g = acceleration of gravity

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• ### Brake Horsepower - an overview | ScienceDirect Topics

EFF = pump efficiency. gpm = fluid flow rate through pump. H = head, (ft lb)/lb. HBhp = hydraulic brake horsepower required by pump (pump efficiency = 1.0 for HBHP calculation) L. loss = pressure drop due to piping, psi or ft. orig. pres. = vessel pressure on pump suction, psia. pump dish. pres. =pump discharge pressure, psia. Q = Volumetric ...

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• ### Water Horsepower Calculator - Online Calculators

Water Horsepower is the energy or power added to water by the pump. Calculate the HP, Flow Rate or Discharge, and Total Head using this simple online calculator.

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• ### Vertical Pump Nomenclature - Nidec

(S.G. of water is 1.0) STATIC DISCHARGE HEAD is the vertical distance the liquid must be raised above the datum.. STATIC WATER LEVEL is the vertical distance, in feet, between the datum and the water level when the pump is not operating.. THRUST BEARING LOSS is the friction loss, in horsepower, developed by the total thrust load on the bearing. Bearing manufacturers estimate the loss in ...

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• ### Calculating Horsepower Requirements and Sizing

2019-3-6 · the horsepower requirements of irrigation pumps and how to use this information in sizing supply pipelines. Pumping Plant Efficiency An irrigation pumping plant has three major compo-nents: 1. a power unit, 2. a pump drive or gear head, and 3. a pump. For electric powered plants, the pump …

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• ### Pump Calculations and Equations - Power Zone

How do I calculate Brake Horsepower Required for a centrifugal pump? Brake Horsepower Required = GPM Required × (Total Dynamic Head) 3940 Efficiency General Equations. 1 Barrel = 42 gallons Gallons Per Minute = Barrels Per Day × .0292 GPM = BPD × …

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• ### How to Read a Pump Curve: Complete Guide

2020-11-17 · For example, while the middle of the pump efficiency curve is generally where a pump is operating at maximum efficiency in terms of pressure and flow rate, moving right on the curve above shows an increase in horsepower needed to maintain a flow rate as head increases. For example, 2 hp is required for a flow rate of 40 gpm with 80 feet of head ...

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• ### Horsepower Calculations for Pump Selection |

2017-9-5 · Horsepower Calculations for Pump Selection. By Nickerson Company on September 5, 2017. Mechanical horsepower is a unit of work, and is defined as 550 ft./lb. per second, or more commonly in pumping applications as 33,000 ft./lb. per minute. The work performed in moving a liquid is a function of the weight of the liquid and the total head or ...

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• ### Horsepower on the pump curve | Environmental XPRT

These additional power losses define the total brake horsepower requirement (BHP) at the pump shaft. Brake horsepower is the actual horsepower delivered to the pump shaft. The formula for figuring brake horsepower is: The head capacity curve will give information on the brake horsepower required to operate a pump at a given point on the curve.

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• ### 1hp Head Pump | MSCDirect.com

Working Pressure 28 Horsepower 1 GPM 46.00 Head Pressure 65.0 Inlet Size (Inch) 3/4 Input Voltage 115/230 Outlet Size (Inch) 1-1/4 Phase 1 Maximum Head In Feet (Feet) 64. In Stock. Added to Cart. 65 Head Pressure, 46 GPM, 1 HP, 28 Working Pressure, Corrosion Resistant Pump - 3/4 Inlet Size, 1-1 ... MSC #: 00291161.

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• ### Pump Design Equations Formulas Calculator Brake

water horsepower: Q = flow rate or discharge: H = total head: n = pump efficiency: BHP = brake horsepower: NPSH = net positive suction head: V = velocity of fluid or liquid: p = impeller inlet pressure: p v = vapor pressure of fluid or liquid: SW = specific weight of fluid or liquid: g = acceleration of gravity

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• ### Brake Horsepower - an overview | ScienceDirect Topics

EFF = pump efficiency. gpm = fluid flow rate through pump. H = head, (ft lb)/lb. HBhp = hydraulic brake horsepower required by pump (pump efficiency = 1.0 for HBHP calculation) L. loss = pressure drop due to piping, psi or ft. orig. pres. = vessel pressure on pump suction, psia. pump dish. pres. =pump discharge pressure, psia. Q = Volumetric ...

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• ### Calculating Horsepower Requirements and Sizing

2018-7-6 · the horsepower requirements of irrigation pumps and how to use this information in sizing supply pipelines. Pumping Plant Efficiency An irrigation pumping plant has three major compo-nents: 1. a power unit, 2. a pump drive or gear head, and 3. a pump. For electric powered plants, the pump …

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• ### Pump Calculations and Equations - Power Zone

How do I calculate Brake Horsepower Required for a centrifugal pump? Brake Horsepower Required = GPM Required × (Total Dynamic Head) 3940 Efficiency General Equations. 1 Barrel = 42 gallons Gallons Per Minute = Barrels Per Day × .0292 GPM = BPD × …

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• ### Specific Gravity and Viscosity | Pumps & Systems

2011-12-17 · The equation below can be used to compute the horsepower required to pump liquids of varying specific gravities (where BHP is brake horsepower, Q is flow in GPM, H is head in feet, SG is specific gravity and Eff is the hydraulic efficiency of the pump). It assumes a viscosity similar to that of water. BHP = (Q x H x SG) (3960 x Eff)

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China Head Pump manufacturers - Select 2021 high quality Head Pump products in best price from certified Chinese Pump, Water Pump suppliers, wholesalers and factory on Made-in-China.com

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• ### How to Read a Pump Curve | Intro to Pumps

In addition to head and flow, most pump performance curves will also provide efficiency information. The efficiency of a pump is the relationship between the input horsepower required to drive the pump at a given operating condition, and the water horsepower being created by the pump.

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• ### Horsepower Calculations for Pump Selection |

2017-9-5 · Horsepower Calculations for Pump Selection. By Nickerson Company on September 5, 2017. Mechanical horsepower is a unit of work, and is defined as 550 ft./lb. per second, or more commonly in pumping applications as 33,000 ft./lb. per minute. The work performed in moving a liquid is a function of the weight of the liquid and the total head or ...

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• ### Pump Head – Performance Curve of Centrifugal Pump

2021-5-6 · Pump Head – Performance Curve. In fluids dynamics the term pump head is used to measure the kinetic energy which a pump creates. Head is a measurement of the height of the incompressible fluid column the pump could create from the kinetic energy, that the pump gives to the liquid. The head and flow rate determine the performance of a pump, which is graphically shown in the figure as the ...

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• ### Required Water Pump Horsepower Calculator

Required Water Pump Horsepower. Use this form to estimate the brake horsepower required. Brake horsepower is the power out of the drive motor, and the power into the water pump and is how most pumps and drive motors are specified. Also calculate the total power requirements (energy use rate).

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• ### Horsepower of a Centrifugal Pump - Pump Tech Inc.

2014-2-27 · The Horsepower of a Centrifugal pump….. (And more reasons to qualify when and where to use VFD’s on them) Too many people equate the horsepower of a pump being able to produce more flow and or pressure using the SAME pump with the SAME …

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• ### Lesson Four - The Affinity Laws - Price Pump Company

H = Head, Feet. BHP = Brake Horsepower. N = Pump Speed,RPM. Analysis: As shown from the above equations, changing the speed (RPM) of a pump affects the flow, head and input brake horsepower of the pump in different proportions. Changing the speed affects the flow through the pump by a proportion equal to the increase or decrease in speed.

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• ### 1hp Head Pump | MSCDirect.com

Working Pressure 28 Horsepower 1 GPM 46.00 Head Pressure 65.0 Inlet Size (Inch) 3/4 Input Voltage 115/230 Outlet Size (Inch) 1-1/4 Phase 1 Maximum Head In Feet (Feet) 64. In Stock. Added to Cart. 65 Head Pressure, 46 GPM, 1 HP, 28 Working Pressure, Corrosion Resistant Pump - 3/4 Inlet Size, 1-1 ... MSC #: 00291161.

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• ### Brake horsepower - Pump Calcs

Brake horsepower. This calculator can be used to determine the centrifugal pump brake horsepower (BHP) for a given flow rate (Q), head (H), specific gravity (S.G.), and efficiency (Eff). If you enter any four of these variables as inputs, the calculator will determine the fifth variable. Input 4 of 5 variables to solve for the unknown.

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• ### Understanding Centrifugal Pump Curves - M.G. Newell

2017-7-5 · that, an engineer would refer to a pumps composite curve. A typical composite curve includes the pump performance curves, horsepower curves and NPSH required. A pump performance curve indicates how a pump will perform in regards to pressure head and flow. A curve is defined for a specific operating speed (rpm) and a specific inlet/outlet diameter.

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• ### How to Read a Pump Curve | Intro to Pumps

In addition to head and flow, most pump performance curves will also provide efficiency information. The efficiency of a pump is the relationship between the input horsepower required to drive the pump at a given operating condition, and the water horsepower being created by the pump.

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• ### Pump head increased... How?? - Pump engineering -

2003-1-7 · To increase the head of the pump you have increase the diameter of impeller not the motor. Usually to increase the discharge reduce the diameter and to increase the head increase the diameter of the impeller. Keep in mind this is the thumb rule. Please let us know here why this post is inappropriate.

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• ### Tech Topic: Pump performance | 2016-11-30 | PM

2021-3-16 · Horsepower on the pump curve. Now that the head capacity relationship along the X and Y axes of the pump curve has been established, the pump curve can be used to determine the amount of horsepower required to meet the head and capacity requirements for the job. Horsepower is a unit of power equal to 550 foot-pounds per second or 746 watts.

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• ### Required Water Pump Horsepower Calculator

Required Water Pump Horsepower. Use this form to estimate the brake horsepower required. Brake horsepower is the power out of the drive motor, and the power into the water pump and is how most pumps and drive motors are specified. Also calculate the total power requirements (energy use rate).

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• ### Hydraulic Pump Horsepower (HP) Calculator

The horsepower of the hydraulic pump can be calculated based on the its capacity and pressure. Calculate Hydraulic Pump Horsepower (HP) Required Pump Capacity gpm. Required Pressure psi. Horsepower HP. The hydraulic pump is used to convert mechanical energy to hydraulic energy. A unit to measure power is the horsepower (hp).

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• ### Reading Centrifugal Pump Curves

2016-2-5 · Head—a measure of the pressure or force exerted by water expressed in feet. Centrifugal pump curves show pressure as head, which is the equivalent height of water with specific gravity = 1. Static Head—the vertical height difference from the sur-face of …

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• ### Positive Displacement Pump Brake Horsepower -

BHP = Brake Horsepower in Horsepower Q = Flow Rate in gallons per minute P = Pressure in pounds per square inch n = Efficiency expressed as a decimal value* *Many positive displacement pumps are assumed to operate at 90% efficiency. A value of 0.9 is often used for this calculation. For more accuracy, refer to your pump manufacturer’s pump ...

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• ### ESP Pump Performance Curves and Effect of axial forces

2017-4-28 · The flowrate‐Head capacity curve depends on: the rotational speed of the pump, the diameter, and the shape of the impeller. Changing these parameters affects the head and horsepower curves according to the pump and affinity laws. The density of …

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• ### VFD for Centrifugal Pumps - Variable Speed Drives

The centrifugal pump output power, or hydraulic power, can be expressed as: Horsepower = {Head (Feet) x Flow (GPM) x Specific Gravity}/3960 Therefore, for any given liquid, the power that the centrifugal pump must transmit is proportional to the head times the flow and can be represented by rectangles for each operating point as shown in figure 10.

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• ### Condensate Pump Selection Guide - Zoro

2018-11-30 · Typically horsepower is rated on the pump head measurement and the required GPM. Average residential applications ranges from 1/30hp to 1/50hp. Light commercial and larger than average HVA systems can require up to a 1/3hp pump and larger collection bins. As horsepower increases the GPM and head pressure of the condensate pump increases as well.

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• ### How to Size a Sump Pump - Sump Pump Sizing

1/3 vs 1/2 HP Sump Pump. The two most common sized motors are 1/3 and 1/2 HP sump pump. If you are shopping for a new pump and comparing 1/3 vs 1/2 HP pump there are a few things to keep in mind – both sizes have pro’s and con’s! 1/3 HP Pumps. 1/3 horsepower pumps are good choices for low head heights and flow rates under 1,300 gallons ...

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• ### What is Pump Head Calculation - Pump Performance ...

2019-5-22 · Pump Head Calculation – Pump Performance Calculation . In this example, we will see, how to predict. the design discharge; water horsepower; the pump head; of a centrifugal pump.This performance data will be derived from the Euler’s turbomachine equation:. Shaft torque: T …

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• ### Power pump horsepower - Pump Calcs

This calculator can be used to determine a power pump's brake horsepower (BHP) requirements knowing the flow rate (Q), mech. eff. (ME), discharge pressure (Pd) and suction pressure (Ps). If you enter any four of these variables as inputs, the calculator will determine the fifth variable.

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• ### Pump ED 101

2016-11-12 · pump that particular liquid. The equation below can be used to compute the horsepower required to pump liquids of varying specific gravities (where BHP is brake horsepower, Q is flow in gpm, H is head in feet, SG is specific gravity, and Eff is the hydraulic efficiency of the pump). It assumes a viscosity similar to that of water.

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• ### Calculating the Pump Head - Amick Racing

2008-11-28 · For open systems: Pump head = the sum of all friction losses plus the static lift of the fluid plus the pressure head. 2. * The 'source unit' is defined as the boiler, chiller, or heat exchanger, which creates the hot or chilled water. Steps in Calculating the Pump Head Basically, we need to plug values into the proper formula above.

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• ### Calculate Total Dynamic Head for Industrial Pumps |

2016-5-19 · Total Dynamic Head in an industrial pumping system is the total amount of pressure when water is flowing in a system. It is comprised of two parts: the vertical rise and friction loss. It is important to calculate this accurately in order to determine the correct sizing and …

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• ### Two Key Terms in pump Specifications - GPM and Head

Total Discharge Head: The height from the pump itself and the highest point that the fluid will be pumped in the system. Maximum Suction Lift Affecting the Total Suction Head is the Maximum Suction Lift, which is the height from which a pump can “pull” water. This number is impacted by atmospheric pressure and friction in the system.

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• ### Selecting a Vertical Turbine Pump (Information required ...

2016-12-22 · head (Bowl Assembly Data and Limitations) for this pump is 377 PSI (871 feet), but the required total head for this application is only 281.8 feet, therefore, this is satisfactory. It will also be noted in the Bowl Assembly Data and Limitation table that a J11HC has a 1-11/16” diameter bowl shaft. The horsepower rating chart for lineshafts shows

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• ### CENTRIFUGAL PUMP SELECTION, SIZING, AND

2007-6-9 · head of the pump, point A in Figure 4-4 (more about this later). Starting at this point, the head decreases until it reaches its minimum at point B. This point is sometimes called the run-out point and represents the maximum flow of the pump. Beyond this, the pump cannot operate. The pump's range of operation is from point A to B. Efficiency Curves

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• ### Selecting A Pump Using Pump Curves - Irrigation

2021-5-12 · This part of the Pump Tutorial Series. The 1st page is at Pumps: Selecting-a pump step-by-step. Selecting a Pump Model, Horsepower, & Impeller Size. The best and easiest way: contact a pump dealer and give him/her the pressure you need (feet head or PSI), and the volume (GPM) you want to pump, they can figure out which pump you need. This is the best way to select a pump, as the dealers …

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• ### Irrigation Water Pumps — Publications

Basic Pump Operating Characteristics “Head” is a term commonly used with pumps. Head refers to the height of a vertical column of water. Pressure and head are interchangeable concepts in irrigation because a column of water 2.31 feet high is equivalent to 1 pound per square inch (PSI) of pressure.

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