High Efficiency Circulators

Wilo-Stratos 25/3-25 NaMex


  • Hot Water Heating Systems
  • Closed Cooling Circuits
  • Air Conditioning systems
  • Industrial Circulation
  • Water/Glycol concentrations up to 50%
  • Solar / Geothermal

Max. Flow: 285 USGPM

Max. Head: 43 feet

Features & Benefits

  • ECM motor technology reduces energy consumption by up to 80%
  • ‘Red Button’ technology and LED display
  • 3 times higher starting torque than a standard circulator
  • On-board diagnostics and data logger
  • Multiple control modules available for integration with building management systems

Technical Data

  • ΔP-V or ΔP-C constant speed control modes standard. ΔP-T available with IR device
  • Temp Range: 14°F to 230°F (-10°C to 110°C)
  • Electrical Connection: 1~208/230v (+/- 10%)

Materials of Construction

  • Cast Iron, Cataphoresis Coated Volute
  • Fiberglass Reinforced Plastic Impeller
  • Stainless Steel Shaft
  • Carbon, Metal Impregnated Bearing
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Installation & Operation Manual

Stratos IOM

Catalog Pages

Stratos Catalog Pages

High Efficiency Brochure

Stratos Brochure

Submittal Data Sheets

Stratos Submittals

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