pump definition head

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  • What is Pump Head – Performance Curve of

    2019-5-22 · 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 performance curve or pump characteristic curve.

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  • PUMP HEAD | Definition of PUMP HEAD by Oxford

    noun. 1 The head of a pump, at which the liquid that has been lifted emerges. 2 A hood at the head of a chain-pump for catching water that might otherwise be thrown off.

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  • What is head? - pumpfundamentals.com

    noun. Nautical. 1 A small pump at the front of a ship for drawing up seawater (now historical). 2 A pump for pumping out waste from an on-board lavatory; compare sense 22c (a).

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  • Pump Head Explained | ieDepot Blog

    2020-8-9 · This is the vertical distance in meters from the pump datum to the highest delivery point. These are the basics definitions of ‘’head’’. It is to be understood that for finding out the static head, the simple rule is: Subtract static suction lift or head from static discharge head… and you get …

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  • Head Pump | Definition of Head Pump by Oxford

    Pump Definitions and Nomenclature: Head (h) [H] – Head is the expression of the energy content of a liquid in reference to an arbitrary datum. It is expressed in units of energy per unit weight of liquid. The measuring unit for head is meters (feet) of liquid.

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  • What is Pumping Head? - Pump Solutions Australasia

    A small pump fixed at the vessel's bow, its lower end communicating with the sea: it is mostly used for washing decks. How to pronounce head-pump?

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  • What does head-pump mean? - Definitions.net

    Definition of head-pump in the Definitions.net dictionary. Meaning of head-pump. What does head-pump mean? Information and translations of head-pump in the most comprehensive dictionary definitions resource on the web.

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  • Pump Head - Process Engineering Tools

    2021-2-22 · Definition. What is the pump head ? The pump head is the actual pressure developped by a pump. It is expressed in vertical m of liquid (water for pump characteristics graphs). The pump head takes into consideration the difference of pressure in between suction and discharge but also the speed difference, all converted to m of liquid. ...

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  • What is Pumping Head? - Pump Solutions Australasia

    2017-12-4 · There is a short definition that is quite easy to understand, but there are other factors which tend to cloud this definition in the industry. So, what is pumping head or just “head?” Head is the maximum height that a pump can move fluid against gravity.

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  • Pump - definition of pump by The Free Dictionary

    Define pump. pump synonyms, pump pronunciation, pump translation, English dictionary definition of pump. pump1 top: jet pump bottom: centrifugal pump n. 1. A machine or device for raising, compressing, or transferring fluids.

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  • Pump Terms and Definitions

    Total head (H) [H tx]– This is the measure of energy increase, per unit weight of liquid, imparted to the liquid by the pump, and is the difference between total discharge head and total suction head. This is the head normally specified for pumping applications because the complete characteristics of a system determine the total head required.

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  • ‘Head’ and ‘pressure’ in pumps | Water Tech Online

    2010-10-13 · If you need a pump to develop 30 psi of water pressure, then buy a pump that develops 70 feet of head. So, it turns out that back in 1965, the pump sales rep was trying to show me the correct pump for my application. Differential pressure. Allow me to refine a couple of points: Pumps develop differential head, or differential pressure.

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  • THE COMPONENTS OF TOTAL HEAD

    2007-6-9 · The specific energy or head E for any point in the system is the sum of the elevation (potential) energy, the velocity (kinetic) energy and the pressure energy. E is given by: z g E=H + v + 2 2 [3-5] By definition, the N.P.S.H available at the pump suction (point S) is based on a reference plane located at the pump suction centerline (z = 0 ...

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  • What Does Water Pump Maximum and Rated Head

    2018-6-14 · It is best to examine what it would mean for a pump to have a maximum head of 35 metres. This means that under ideal install conditions, the pump can pressurise water to this height. Surely, this would be suitable for most home owners. Perhaps it would suffice, but there are two missing questions that must be answered before going with such a ...

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  • Pump: Definition, Types, Advantages, Disadvantages ...

    2021-5-6 · This article includes Pump, Definition, Types or Classification, Advantages, Disadvantages, Applications, and also in PDF format. ... The rise in pressure head at any point of the rotating liquid is proportional to the square of the tangential velocity of the liquid at that point.

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  • Importing Pump Definitions Using ModelBuilder

    2019-2-13 · However, to import multipoint head, efficiency or speed vs. efficiency curves, the tabular values must be imported under Table Types: Pump Definition - Pump Curves, Pump Definition - Flow-Efficiency Curve, and Pump Definition - Speed-Efficiency Curve respectively. The list of properties that can be imported under Pump Definition is given below.

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  • Pump Head - Process Engineering Tools

    2021-2-22 · Definition. What is the pump head ? The pump head is the actual pressure developped by a pump. It is expressed in vertical m of liquid (water for pump characteristics graphs). The pump head takes into consideration the difference of pressure in between suction and discharge but also the speed difference, all converted to m of liquid. ...

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  • ‘Head’ and ‘pressure’ in pumps | Water Tech Online

    2010-10-13 · If you need a pump to develop 30 psi of water pressure, then buy a pump that develops 70 feet of head. So, it turns out that back in 1965, the pump sales rep was trying to show me the correct pump for my application. Differential pressure. Allow me to refine a couple of points: Pumps develop differential head, or differential pressure.

    Get Price
  • Component Database > Pump definition

    General frame. The pump device is considered as a black-box, with Current and Voltage inputs on the electric side, and Head and Flowrate values at the hydraulic side (cf Pump model).Technical features of the motor-pump aggregate are not needed in detail. In PVsyst, many Pump are associated with a power converter, which have to be included in the pump device definition.

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  • Importing Pump Definitions Using ModelBuilder

    2019-2-13 · However, to import multipoint head, efficiency or speed vs. efficiency curves, the tabular values must be imported under Table Types: Pump Definition - Pump Curves, Pump Definition - Flow-Efficiency Curve, and Pump Definition - Speed-Efficiency Curve respectively. The list of properties that can be imported under Pump Definition is given below.

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  • What is Hydraulic Head - Definition

    2019-5-22 · Hydraulic Head. In general, the hydraulic head, or total head, is a measure of the potential of fluid at the measurement point. It can be used to determine a hydraulic gradient between two or more points. In fluid dynamics, head is a concept that relates the energy in an incompressible fluid to the height of an equivalent static column of that fluid. The units for all …

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  • Visual Pump Glossary

    2019-4-26 · Axial flow pump: refers to a design of a centrifugal pump for high flow and low head.The impeller shape is similar to a propeller. The value of the specific speed number will provide an indication whether an axial flow pump design is suitable for your application. see axial flow pumps.. They are used extensively in the state of Florida to control the water level in the …

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  • Pump characteristic curve - PowderProcess.net

    2021-2-22 · 1. Definition What is the characteristic curve of a pump ? The pump characteristic gives the performance of the pump by plotting : The pump Head H (m) The pump efficiency η (%) The NPSH (m) The power P (kW) As a function of the flow rate Q (m 3 /h)

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  • Motor Pump: Working Principle, Types, Specifications,

    Pump: Motor. Definition. The pump can be defined as it is a mechanical device used to convert torque from mechanical hydraulic. It simply makes possible of fluids movement from one location to another with the help of pressure or suction. Electric motors are electromechanical devices mainly used for changing energy from electrical to mechanical ...

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  • Pump & System Curve Data for Centrifugal Pump

    2019-7-29 · The pump affinity laws provide methods for approximation of the effects of changed impeller diameters and rotational speeds on the pump curve. These laws state: 1. Pump GPM capacity varies directly as the speed (RPM) or impeller diameter ratio change. 2. Pump head varies directly as the square of the speed (RPM) or impeller ratio change. 3.

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  • Head Rise and the Energy Equation - for Pump or Fan

    2021-5-7 · Actual Head Rise of a Pump or Fan. Using the Energy Equation the head rise through a pump or fan can be expressed as:. h a = (p 2 - p 1) γ + (h 2 - h 1) + (v 2 2 - v 1 2) 2 g (1). where. h a = actual head rise (m fluid column) . p = pressure (Pa, N/m 2). h = elevation (m). γ = ρ g = specific weight of fluid (N/m 3) . v = velocity (m/s). ρ = density of fluid (kg/m 3)

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  • Pumping Head Height Explained | Creative Pumps

    2021-5-16 · It's called Static head. It does not count as pumping height because the water is already at the surface and does not have to be pumped there. Maximum depth the pump can be located. depending on the pump there is a maximum depth that a pump will operate. The larger the pump the deeper it's suitable placement.

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  • Pump | Article about pump by The Free Dictionary

    pump, device to lift, transfer, or increase the pressure of a fluid (gas or liquid) or to create a vacuum in an enclosed space by the removal of a gas (see vacuum pumps under vacu

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  • Pump Terminology Used for Pump Selection -

    Dynamic Suction Head: Used when calculating the static suction head minus friction head and velocity head. Dynamic Discharge Head: Used when calculating static discharge head, friction head plus velocity head into one computation. Flooded Suction: Liquid flows to pump inlet from an elevated source by means of gravity.

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  • Velocity head | KSB

    Velocity head is the kinetic portion of the head. In accordance with EN 12723, it is the kinetic energy of the fluid handled per unit weight. Alongside pressure head and geodetic height, the velocity head is determined in the Bernoulli equation (see Fluid mechanics) as follows: See Fig.1 and Fig. 2 Velocity head

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  • Head Rise and the Energy Equation - for Pump or Fan

    2021-5-7 · Actual Head Rise of a Pump or Fan. Using the Energy Equation the head rise through a pump or fan can be expressed as:. h a = (p 2 - p 1) γ + (h 2 - h 1) + (v 2 2 - v 1 2) 2 g (1). where. h a = actual head rise (m fluid column) . p = pressure (Pa, N/m 2). h = elevation (m). γ = ρ g = specific weight of fluid (N/m 3) . v = velocity (m/s). ρ = density of fluid (kg/m 3)

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  • Motor Pump: Working Principle, Types, Specifications,

    Pump: Motor. Definition. The pump can be defined as it is a mechanical device used to convert torque from mechanical hydraulic. It simply makes possible of fluids movement from one location to another with the help of pressure or suction. Electric motors are electromechanical devices mainly used for changing energy from electrical to mechanical ...

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  • Cylinder Head | Definition of Cylinder Head by

    2021-4-21 · Cylinder head definition is - the closed end of an engine or pump cylinder.

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  • Pump NPSH - Net Positive Suction Head

    2021-2-26 · Definition : What is pump NPSH. Meaning of NPSH : the term pump NPSH stands for Net Positive Suction Head. It represents the pressure drop in between the suction point of the pump and the minimum pressure that is reached at the pump inlet. If the pump NPSH available is less than the NPSH required, the pump will not work properly. ...

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  • Understanding Net Positive Suction Head - Pump School

    2020-1-16 · the pump by atmospheric or head pressure (pressure due to the liquid’s surface being above the centerline of the pump). Consider placing a pump at the top of the mercury barometer above: Even with a perfect vacuum at the pump inlet, atmospheric pressure limits how high the pump can lift the liquid. With liquids lighter than mercury, this lift

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  • Pump Efficiency - uaex.edu

    2014-4-16 · Total Head Total head is determined by measuring the distance from the source water surface to the output of the pump, as well as the pressure the pump is producing at the pump outlet. If this value is measured for a centrifugal pump, the distance from the water surface to the pump outlet needs to be measured as indicated in the following diagram.

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  • Pump - definition of pump by The Free Dictionary

    Define pump. pump synonyms, pump pronunciation, pump translation, English dictionary definition of pump. pump1 top: jet pump bottom: centrifugal pump n. 1. A machine or device for raising, compressing, or transferring fluids.

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  • Pumping Head Height Explained | Creative Pumps

    2021-5-16 · It's called Static head. It does not count as pumping height because the water is already at the surface and does not have to be pumped there. Maximum depth the pump can be located. depending on the pump there is a maximum depth that a pump will operate. The larger the pump the deeper it's suitable placement.

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  • Pump | Definition, Types, Applications [A Brief Guide]

    2018-12-8 · A positive displacement pump must not be operated against closed valves, because it does not have a shutoff head like a rotodynamic pump. Providing a safety valve is must in positive displacement pumps. Types of positive displacement pump. Following are the two main types of positive displacement pumps. Rotary positive displacement pumps ...

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  • Velocity head | KSB

    Velocity head is the kinetic portion of the head. In accordance with EN 12723, it is the kinetic energy of the fluid handled per unit weight. Alongside pressure head and geodetic height, the velocity head is determined in the Bernoulli equation (see Fluid mechanics) as follows: See Fig.1 and Fig. 2 Velocity head

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  • Cylinder Head | Definition of Cylinder Head by

    2021-4-21 · Cylinder head definition is - the closed end of an engine or pump cylinder.

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  • Pump Efficiency—What Is Efficiency?

    2012-1-20 · H= Head (feet) The constant (3,960) converts the product of flow and head (GPM-feet) into BHP. These equations predict that a pump that produces 100 GPM at 30 feet of head and requires 1 BHP will have an overall efficiency is 75.7 percent at that flow point.

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  • Understanding Net Positive Suction Head - Pump School

    2020-1-16 · the pump by atmospheric or head pressure (pressure due to the liquid’s surface being above the centerline of the pump). Consider placing a pump at the top of the mercury barometer above: Even with a perfect vacuum at the pump inlet, atmospheric pressure limits how high the pump can lift the liquid. With liquids lighter than mercury, this lift

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  • How to Read a Pump Curve for Centrifugal Pumps |

    2018-9-24 · Centrifugal Pump curves show 8 important factors that are critical in selecting the right pump for your application. These factors are: Flow, Head, Impeller Trim Diameter, Efficiency, Power, NPSHR, MCSF (Minimum Continuous Stable Flow) and RPM. The Pump curve also displays the Pump model, the Pump size and number of stages for multi-stage pumps.

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  • Pump Affinity Laws - Engineering ToolBox

    2021-5-7 · Example - Pump Affinity Laws - Changing Pump Speed. The pump speed is changed when the impeller size is constant. The initial flow is 100 gpm, the initial head is 100 ft, the initial power is 5 bhp, the initial speed is 1750 rpm and the final speed 3500 rpm. The final flow capacity can be calculated with (1a): q 2 = q 1 n 2 n 1

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  • Centrifugal Pumps- Part III- Shutoff Pressure

    2018-8-29 · Plant designer knows the rated head of the pump. According to clause 6.1.11 of API 610,11th Ed., the minimum head rise from rated point to shutoff head shall be 10%. Thus the shutoff head is H ...

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