Main applications UPA

  • Energy
  • Groundwaterlevel (mining/buildings)
  • Industry engineering
  • Irrigation
  • Lake, Damwater extraction
  • Mining
  • Power Stations < 100 MW
  • Process
  • Water
  • Water Extraction
  • Water treatment
  • Watertransport
  • Well

Design UPA

Single- or multistage centrifugal pumps in ring-section design, single entry; for vertical and – depending on the number of stages – horizontal installation; radial or mixed flow hydraulic systems available with reduced impeller diameters; driven by asynchronous motor or high-efficiency, synchronous submersible motor; suction casing fitted between pump and motor, suction casing equipped with strainer to protect the pump from coarse particles in the fluid handled. Pumps with check valve or connection branch on option.

Applications Pump UPA

Handling clean and slightly contaminated water, irrigation and drainage, spray irrigation, industrial and municipal water supply, drawdown and maintenance of groundwater levels, fire-fighting, drinking water, raw and service water supply, pressure boosting Type Series UPAchrom 100, UPA 150C, UPA 200 – UPA 850; UPA D, UPA S 200

Drive pump UPA

  • Asynchronous motor
  • Interior (buried) permanent magnet synchronous motor (IPMSM)
  • With squirrel cage motor for submerged use
  • Standard connection to NEMA
  • Frequency 50 Hz/60 Hz
  • IP68 enclosure
  • Thermal class B
  • DOL starting
  • Frequency of starts ≤ 20 starts per hour

Single-phase AC motor:

  • Rated power PN ≤ 2.2 kW
  • Rated voltage VN 220 – 230 V

Three-phase motor:

  • Rated power PN ≤ 7.5 kW
  • Designs with additional stages and 6-inch motors of up to 18.5 kW are available for high heads.
  • Rated voltage VN 380 – 400 V

Desing Details pump UPA

  • Centrifugal pump
  • Multistage
  • Single-entry
  • Ring-section design
  • Rigid connection between pump and motor


  • Pump end with Rp 1 1/4 to Rp 2 thread
  • With lift check valve

Impeller type

  • Radial or mixed flow versions


  • Radial plain bearings
  • Pump bearings lubricated by fluid handled; motor bearings lubricated by water fill
  • Axial thrust is balanced by a tilting-pad thrust bearing in the motor (lower end)
  • Intermediate bearing in every stage

Overview of technical data UPA

Q (50Hz)1.0 – 5,000.0 (m³/h)
H (50Hz)10.0 – 1,500.0 (m)
Type of bearingPlain bearings
Borehole diameter (inc06, 08, 10, 12, 14
Diffuser material (EN standard)GJS-400, CUAL10FE5NI5, PPO GF30, CUSN10, GJL-200
DriveElectric motor
Drive frequency50 Hz /60 Hz
Type of driveElectric motor
Drive voltageLow voltage, high voltage
Connection to power supply230V, 400V, 500V, 690 V, 3~
No. of impeller entriesSingle entry
Other impeller typesRadial / Mixed flow
Impeller material (EN standard)1.4408, 1.4517, CC480K, PPO GF30
Type of lubricationProduct lubrication
Max. permissible fluid temperature50.0 (°C)
Pump set locationWet well
Shaft material (EN standard)1.4462, 1.4021
Stage casing material (EN standard)1.4408, 1.4517, CC333G, CC480K, GJL-200, GJS-400, JS 1030
Suction casing material (EN standard)GJS-400, GJL-200, CUAL10FE5NI5, CUSN10, JS 1030, JL1030, CC480K
Suction characteristicsNon-priming
Suitable for drinking waterYes
Type of connectionScrew-ended, flange
Type of stage casingStage casing with diffuser
Type of suction casingAnnular casing
UNSPSC classification4015150300
Casing material (EN standard)1.4408, 1.4593, CC333G, CC480K, CUAL10FE5NI5, CUSN 10, GJL-200, GJS-400, JL 1030, JS1030
eClass assignment36410000, 00000000, 36410106, 36410100
Installation positionHorizontal or vertical
Shaft seal typeMechanical seal, Shaft seal ring
Casing materialNodular cast iron, Bronze
Maximum discharge-side pressure57.0 (bar)
Maximum drive rating380.0 (kW)
Type of installationStationary
Maximum speed of rotation3500.0 (1/min)