Pump Types

Index

Pump Types - Rotodynamic Overhung
Pump Types - Rotodynamic Between Bearing
Pump Types - Rotodynamic Vertically Suspended
Pump Types - Rotary Positive Displacement
Pump Types - Reciprocating Positive Displacement

Pump Types - Rotodynamic Overhung

AcronymPump DescriptionReference
OH0Overhung impeller - flexibly coupled - horizontal - frame mounted - single stageANSI/HI 14.1-14.2
OH0cOverhung impeller - flexibly coupled - horizontal - axial flow - single stageANSI/HI 14.1-14.2
OH0dOverhung - flexibly coupled - horizontal - frame mounted - pitot tube pumpANSI/HI 14.1-14.2
OH1Overhung impeller - flexibly coupled - horizontal - foot mounted - single stageANSI/HI 14.1-14.2
OH1hOverhung impeller - flexibly coupled - horizontal - foot mounted - self-priming - single stageANSI/HI 14.1-14.2
OH1iOverhung impeller - flexibly coupled - horizontal - foot mounted - sealless - single stageANSI/HI 5.1-5.6
OH1jOverhung impeller - flexibly coupled - horizontal - foot mounted -multi-stageANSI/HI 14.1-14.2
OH2Overhung impeller - flexibly coupled - horizontal - centerline mounted - single stageANSI/HI 14.1-14.2
OH3Overhung impeller - flexibly coupled - vertical - in-line - integral bearing frame - single stageANSI/HI 14.1-14.2
OH3gOverhung impeller - flexibly coupled - vertical - end suction - single stageANSI/HI 14.1-14.2
OH4Overhung impeller - rigidly coupled - vertical - in-line - single stageANSI/HI 14.1-14.2
OH5Overhung impeller -close-coupled - vertical - in-line - single stageANSI/HI 14.1-14.2
OH5gOverhung impeller -close-coupled - vertical - end suction - single stageANSI/HI 14.1-14.2
OH5iOverhung impeller -close-coupled - vertical - in-line - sealless - single stageANSI/HI 5.1-5.6
OH6Overhung impeller - close-coupled - vertical - in-line - high-speed integral gear - single stageANSI/HI 14.1-14.2
OH7Overhung impeller - close-coupled - horizontal - single stageANSI/HI 14.1-14.2
OH7jOverhung impeller - close-coupled - horizontal - multi-stageANSI/HI 14.1-14.2
OH7iOverhung impeller - close-coupled - horizontal - sealless - single stageANSI/HI 5.1-5.6
OH8Overhung impeller - close-coupled - submersible - diffuser - end suction - single stageANSI/HI 14.1-14.2
OH8bOverhung impeller - close-coupled - submersible - volute - end suction - single stageANSI/HI 14.1-14.2
OH13jOverhung impeller - rigidly coupled - horizontal - foot mounted - multi-stageANSI/HI 14.1-14.2
OH13iOverhung impeller - rigidly coupled - horizontal - foot mounted - sealless - single stageANSI/HI 5.1-5.6
CP1Circulator pump - close-coupled - sealless - horizontal - in-lineANSI/HI 14.1-14.2
CP2Circulator pump - close-coupled - horizontal - in-lineANSI/HI 14.1-14.2
CP3Circulator pump - flexibly coupled - horizontal - in-lineANSI/HI 14.1-14.2
RT1Regenerative turbine - overhung - side channelANSI/HI 14.1-14.2
RT2Regenerative turbine - overhung - peripheralANSI/HI 14.1-14.2

Pump Types - Rotodynamic Between Bearing

AcronymPump DescriptionReference
BB1Between bearing impeller - 1 or 2 stage - axially splitANSI/HI 14.1-14.2
BB2Between bearing impeller - 1 or 2 stage - radially splitANSI/HI 14.1-14.2
BB3Between bearing impeller - multi-stage - axially splitANSI/HI 14.1-14.2
BB4Between bearing impeller - multi-stage - radially split - single casingANSI/HI 14.1-14.2
BB5Between bearing impeller - multi-stage - radially split -double casingANSI/HI 14.1-14.2
RT3Regenerative turbine - between bearings - side channelANSI/HI 14.1-14.2
RT4Regenerative turbine - between bearings - peripheralANSI/HI 14.1-14.2

Pump Types - Rotodynamic Vertically Suspended

AcronymPump DescriptionReference
VS0Vertically suspended - single casing - discharge through column - submersibleANSI/HI 14.1-14.2
VS1Vertically suspended - single casing - discharge through column - diffuserANSI/HI 14.1-14.2
VS2Vertically suspended - single casing - discharge through column - voluteANSI/HI 14.1-14.2
VS3Vertically suspended - single casing - discharge through column - axial flowANSI/HI 14.1-14.2
VS4Vertically suspended - single casing - separate discharge - line shaftANSI/HI 14.1-14.2
VS5Vertically suspended - single casing - separate discharge - cantileverANSI/HI 14.1-14.2
VS6Vertically suspended - double casing - diffuserANSI/HI 14.1-14.2
VS7Vertically suspended - double casing - voluteANSI/HI 14.1-14.2
VS7jVertically suspended - double casing - volute - multi-stageANSI/HI 14.1-14.2
VS8Vertically suspended - in-line casing - diffuserANSI/HI 14.1-14.2

Pump Types - Rotary Positive Displacement

AcronymPump DescriptionReference
Circumferential pistonANSI/HI 3.1-3.5
Gear type - seallessANSI/HI 4.1-4.6
Gear, externalANSI/HI 3.1-3.5
Gear, internal with crescentANSI/HI 3.1-3.5
Gearing, Internal without crescentANSI/HI 3.1-3.5
Lobe, singleANSI/HI 3.1-3.5
Lobe, threeANSI/HI 3.1-3.5
Piston, axialANSI/HI 3.1-3.5
Screw type - SeallessANSI/HI 4.1-4.6
Screw, single (progressing cavity)ANSI/HI 3.1-3.5
Screw, three (untimed)ANSI/HI 3.1-3.5
Screw, two (timed)ANSI/HI 3.1-3.5
Tube, flexible (peristaltic)ANSI/HI 3.1-3.5
Vane type - seallessANSI/HI 4.1-4.6
Vane, flexibleANSI/HI 3.1-3.5
Vane, slidingANSI/HI 3.1-3.5

Pump Types - Reciprocating Positive Displacement

AcronymPump DescriptionReference
AODAir-operated - Bellows - simplex or duplexANSI/HI 10.1-10.6
AODAir-operated - Diaphragm - simplex or duplexANSI/HI 10.1-10.5
Air-operated - piston
Air-operated - plunger
CVMPControlled volume metering - diaphragmANSI/HI 7.1-7.5
CVMPControlled volume metering - pistonANSI/HI 7.1-7.5
Piston - direct acting - single or double acting - simplex or duplexHI 8.1-8.5
Plunger - direct acting - single or double acting - simplex or duplexHI 8.1-8.5
Piston - single or double acting - simplex or multiplexHI 6.1-6.5
Plunger- single or double acting - simplex or multiplexHI 6.1-6.5

Last updated on April 19th, 2024