MS Series – Modular Multistage Pump

The SIHImulti pumps are horizontal multistage centrifugal pumps of ring-section design, which meet the technical requirements of ISO 5199 / EN 25199.

Benefits: SIHImulti

  • Advanced modular design reduces the number of parts while maximizing interchangeability.
  • Optimal selection of impeller diameter and diffuser size installed in a standardized casing ensures that the pump matches the required duty for each application.
  • The first stage of each pump size is equipped with a low required NPSH suction impeller.
  • Axial thrust is hydraulically balanced by a patented balanced drum system with self-adjusting throttle device.
  • Generously sized angular contact ball bearings absorb residual thrust.
  • The pump can be built with an axial, vertical, left or right suction and a vertical, left or right discharge in any combination.
  • All pump sizes can be provided with one or more “dummy” stages, if required.

Features: SIHImulti

  • The pump is driven from the discharge side and the rotor is supported on the side by grease-lubricated anti-friction bearings and on the suction side by self-adjusting sleeve bearing lubricated by the pumped liquid.
  • The pump feet are mounted to the suction and discharge casings in such a manner that the suction casing (for suction casings with radial branch) and discharge casing can be swung to suit the installation conditions.
  • Casing components are sealed by O-rings and held together with tie rods.
  • The balancing line is returned to the suction casing or to the upstream vessel.
  • The mechanical shaft seal is located on the drive side only. Sealing can be (cooled or uncooled) single acting mechanical seal, packed gland (cooled or uncooled) or double-acting mechanical seal (uncooled).

Technical Data:

Flow rate max. 1100 GPM (250 m³/h)
Head max. 2067 feet (630 m)
Speed max. 3600 rpm
Temperature 14 to 356 F (-10 to +180°C)
Pressure Rating max. 914 psi (63 bar)
Shaft seal mechanical seal packed gland


  • Power
  • Water & Wastewater Treatment Plants
  • Irrigation
  • Chemical & Process
  • Pharmaceutical
  • Food
  • And many More


  • Boiler feed
  • Condensate systems
  • Pressure boosting
  • Irrigation
  • High pressure cleaning
  • Heating
  • Waterworks, and water supply
  • Reverse osmosis
  • Chemical and Process
  • And many more …

Download Literature

pdf-brochureNothing to download



Contact us through your closest Sales Representative.
For any questions, send us an email to or fill the Online Contact Form