Horizontale Kreiselpumpe Edelstahl UP-DO
stainless steel
with mechanical seal
normal priming

UP-DO Series

The UP-DO series is ideal for toxic or environmentally hazardous media up to 150 °C. Its double mechanical seal ensures maximum tightness and safety in back-to-back arrangement.

In these pumps, the power of the motor is transmitted directly to the impeller by a continuous shaft. In the UP-DO series, the mechanical seal is cooled by a sealing liquid. This is provided by a separate supply system. Seal faces and elastomers can be manufactured in various materials on request. Thus, there is hardly any limit to the use of these pumps. more ...

Pump request

Special features of the UP-DO Series

  • Robust housing parts with high wall thickness
  • Compact close-coupled design
  • Easy installation
  • Suitable for high temperatures
  • Dry run safe in connection with a barrier fluid system
  • No leakage of toxic or environmentally hazardous liquids
  • Meets the requirements of TA Luft

Pump curves


  • Robust housing parts with high wall thickness
  • Well suited to fluids containing solid particles due to spring-loaded mechanical seal
  • Pumping of magnetic particles possible
  • Low-maintenance-operation due to high-quality seal face materials
  • All wetted parts made of high-quality, corrosion-resistant stainless steel 1.4571 (AISI 316 Ti)
  • Threaded connections as per ISO 228-1 as standard. Optionally available with flange connections (from size 130)
  • Universally applicable, low-noise and compact close-coupled design
  • Approved for use in explosive atmospheres (ATEX zone 1)
  • Corrosion-resistant motor finish

Fields of application

Pumping salt water, weak acids and alkalis or other corrosive liquids. Pumping of water- or oil-based emulsions at temperatures up to 150 °C. Use in harsh environments and in applications where a particularly robust pump is required.


For example in the following applications:

  • Plating and surface coating
  • Semiconductor technology and solar cell production
  • PCB and electronics manufacturing
  • Wastewater and fresh water treatment
  • Laboratory equipment and medical technology
  • Emission controls and gas scrubbers
  • Battery production and energy storage
  • High-purity applications, demineralized water, ultrapure water


Pump housing / wet end: Stainless steel 1.4571 (316Ti)

Elastomers: FKM, EPDM, FFKM

Material of mechanical seal: PTFE/Al2O3, carbon/Al2O3, SiC/SiC, SiC/carbon

Operating conditions

  • Max. flow rate: up to 30 m³/h
  • Max. delivery head: up to 40 m
  • Liquid temperature: -10 to 150 °C
  • Ambient temperature: -10 to 40 °C, higher temperatures on request
  • Pumps can be adapted to high-density liquids (up to 2.0)


Standard motors (available from stock)

  • Three-phase motors: D230 / Y400 V-3ph @ 50 Hz, D265 / Y460 V-3ph @ 60 Hz, IP 55, Ins.-Cl. F, also with PTC
  • All motors from 0.75 kW have energy efficiency class IE3
  • Single-phase motors (up to 1.1 kW: 230 V-1ph, 50 / 60 Hz, IP 55, Isol.-Kl. F)
  • ATEX-certified motors (temperature rating T3)

Special motors (available on request, for example)

  • Special voltages and frequencies · ATEX-certified motors (temperature rating T4)
  • Three-phase motors with integrated drive / frequency converter
  • Four-pole motors with 1450 rpm @ 50 Hz / 1650 rpm @ 60 Hz
  • UL- and CSA-certified motors
  • Special types of protection, e.g. IP 65
  • Special insulation classes, e.g. tropical insulation
  • Multi-voltage, e.g. D220–290 / Y380–500 V, 50 Hz; D220–332 / Y380–575 V, 60 Hz
  • Direct-current motors (DC or BLDC)
Horizontale Kreiselpumpe Edelstahl UP-DO

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