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Immision

The term "immission" comes from the Latin word "immittere" and means to send in. From a legal ...

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Immission Control Act

Immission Control Act refers to the German Federal Immission Control Act ...

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Impeller

Impeller: Radial impeller with purely radial vanes, stagnation point S (shown with front shroud removed)

An impeller is a rotating component equipped with vanes or blades used in turbomachinery (e. g.

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Impeller blade pitch control

Impeller blade pitch control is used in propeller pumps with axial and mixed flow impellers to change ...

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Impeller trimming

Impeller trimming: Diagram for determining the reduced impeller diameter

Impeller trimming refers to the reduction of the impeller diameter, and thus a reduction of the ...

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Impeller vane

The impeller vanes are vanes or blades in an impeller which rotate with the pump shaft and in so ...

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Incidence angle

The incidence angle describes the position of an axial vane relative to the flow (see also Aerofoil ...

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Incipient cavitation

The start of cavitation (first occurrence of vapour bubbles) is also referred to as "incipient ...

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Inclined rotor pump

An inclined rotor pump is a pump whose rotor is designed as a disc. See Fig. 1 Inclined rotor pump ...

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Incompressible

A fluid is termed incompressible if its density does not change at a constant temperature and with ...

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Incrustation

Sediments of natural minerals, such as calcium, magnesium, iron and manganese in the water supply ...

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Inducer

Inducer: Inducer (illustrated in red) upstream of a submersible borehole pump's first stage

An inducer is an axial impeller with a low number of vanes which is arranged immediately upstream of ...

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Induction

Electromagnetic induction, or simply induction, is the production of an electric current when a ...

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Inductive displacement sensor

An inductive displacement sensor is a measuring instrument (also see Sensor) that utilises changes in ...

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Inductive proximity sensor

An inductive proximity sensor is a measuring instrument (also see Sensor) that utilises changes in a ...

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Inductive sensor

An inductive sensor is a measuring instrument that utilises changes in electromagnetic induction, e.g.

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Inlet conditions

To ensure trouble-free operation of a centrifugal pump, the approach flow to the impeller must be ...

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Inlet cone

An inlet cone is a flow deflecting device anchored in the intake chamber floor immediately upstream ...

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Inlet cross-section

The pump's inlet cross-section is usually deemed to be the flow cross-section of the pump suction nozzle.

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In-line pump

In-line pump: Circulator pump with canned motor and thermal insulation

In-line pumps are centrifugal pumps, whose pump discharge and pump suction nozzles lie in a straight ...

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Inspection

Inspection is a form of checking that employs various measures for the purpose of identifying and ...

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Installation

For centrifugal pumps, "installation" encompasses the arrangement of the pump set on site, together ...

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Intake chamber

The intake chamber is often referred to as a pump sump. It is a collecting chamber situated directly ...

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Intake elbow

The intake elbow, also referred to as the suction elbow, serves to direct the fluid flow to the pump, ...

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Intake vortex

Intake vortices are vortices in the fluid handled occurring upstream of the intake chamber (see also ...

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Integral drive

An integral drive is also referred to as integral motor.

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Integral motor

The integral motor is also referred to as an integral drive or "intelligent" drive and is a ...

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Interest rate

Interest calculation is a mathematical process that is applied once a year or more for the purpose of ...

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Interface

Interfaces as they apply to electrical engineering and automation describe the connection point ...

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Interference immunity

Interference immunity describes the ability of a device, apparatus, plant, or system to operate in an ...

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Internal efficiency

In accordance with DIN EN 12723:2000 the internal efficiency (ηi) of a centrifugal pump is the ratio ...

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Internal leakage loss

Due to the difference in pressure upstream and downstream of the impeller (see Clearance gap ...

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Internal rotor motor

The internal rotor motor is a direct current motor whose rotor is internal and the stator external.

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Invested capital

Invested capital is the amount of money that needs to be provided in order, for example, to put ...

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Investment

The term "investment" describes the use of financial resources for the purpose of procuring ...

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Irrigation pump

 Irrigation pump: Maintenance-free propeller pump with submersible motor

Irrigation pumps are used to pump water from a lower to a higher level from which the water then ...

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Isolating terminal

The isolating terminal is a special type of terminal that is used to manually disconnect circuits.

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Isolating transformer

The isolating transformer typically transfers an alternating voltage 1:1 via two electrically ...

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