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The Wilo-Yonos MAXO is a glandless circulation pump with threaded connection or flange connection, EC motor with automatic power adjustment.

High efficiency light commercial circulator pump with 4m max head, 220 mm port-to-port length and DN40 flanged connections The Wilo Yonos MAXO range are high efficiency glandless light commercial circulator pumps designed to enable quick and simple installation. The Yonos MAXO-D pumps are twin head units.


The Wilo-Yonos MAXO can be used for the following applications:

  • All Hot Water Heating Systems
  • Air Conditioning Applications
  • Closed Cooling Circuits
  • Industrial Circulation Systems
  • Maximum efficiency thanks to ECM technology
  • LED display for showing delivery head setting
  • Quick and convenient electrical connection with Wilo-Connector
  • Collective fault signal on all types for assuring system availability
  • Simple installation due to PN 6/PN 10 combination flanges (with DN 40 to DN 65)
  • Can be used in cooling/air-conditioning systems without ambient temperature limits
  • Pump housing with cataphoretic coating for preventing corrosion due to condensation formation
  • Pump housing: grey cast iron with cataphoretic coating
  • Shaft: Stainless steel
  • Bearing: carbon, metal impregnated
  • Impeller: Plastic



  • : Permissible temperature range of -20°C to +110°C
  • : Mains connection 1~230 V, 50/60 Hz
  • : Protection class IP X4D
  • : Flange connection DN 32 to DN 80
  • : Max. operating pressure of standard version: 6/10 bar or 6 bar (special version: 10 bar)

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