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Glandless circulation pump with threaded connection or flange connection, EC motor with automatic power adjustment.

The high-efficiency pumps Wilo-Stratos have integrated differential pressure control and EMC Technology (Electronic Commutated Motor) and can be installed as single or double pump.


Variants of these circulation pumps are suitable for:

  • Hot water heating systems of all kinds
  • Air-conditioning applications
  • Closed cooling circuits
  • Industrial circulation systems
  • Energy savings through greater system efficiency with the Q-Limit function (volume flow limiter)
  • Improved Energy Efficiency Index (EEI) ≤0.20 for all single pumps.
  • Optimised display for better readability and operation
  • Space-saving installation due to compact design and location-dependent LC display
  • Modular concept for connection of all conventional bus systems (e.g. Modbus, BACnet, CAN, LON and PLR)
  • Tried and tested quality and reliability

Pump housing: Grey cast iron with cataphoretic coating

Thermal insulation: Polypropylene

Shaft: stainless steel

Bearing: Carbon, metal impregnated

Impeller: Plastic


  • : Fluid temperature -10 °C to +110 °C
  • : Mains connection 1~230 V, 50 Hz
  • : Energy Efficiency Index (EEI) ≤ 0.20
  • : Nominal diameter Rp 1 to DN 100
  • : Max. operating pressure 10 bar (special

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