STRATOS de WILO - Q-Tech ®


Regular price €694,00 Offer price€599,00
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You will soon find the spare parts for this product here.

* Models with PN10 threaded connection. Other models, consult.

Special features

  • Energy savings through higher system efficiency with Q-Limit function
  • Improved energy efficiency index EEI≤0.20 for all single pumps
  • Optimized screen for better reading and handling
  • Mounting in tight spaces thanks to compact construction and free-standing liquid crystal display
  • Modular concept for linking all conventional bus systems (e.g. Modbus, BACnet, CAN, LON, PLR)
  • Guaranteed quality and reliability


Wet rotor circulator pump with threaded or flanged connection, EC motor with automatic power adaptation


All hot water heating systems, air conditioning installations, closed cooling circuits and industrial circulation systems.


Manual functions

  • Operating mode setting
  • Differential pressure setpoint adjustment
  • Automatic night reduction adjustment
  • Pump ON/OFF setting
  • Speed ​​adjustment (manual mode)

Automatic functions

  • Continuous power adaptation depending on operating mode
  • Automatic night reduction
  • Unlock function
  • Soft start
  • Total motor protection with integrated electronic trip system

External control functions

  • "Priority OFF" control input (possible with Stratos IF modules)
  • Control input "Min." (possible with IF Stratos modules)
  • "Analogue at 0 to 10 V" control input (remote speed control) (possible with Stratos IF modules)
  • "Analog in 0 to 10 V" control input (remote setpoint regulation) (requires IF Stratos modules)

Indication and warning functions

  • General fault indication (voltage-free opening contact)
  • Individual operation indication (voltage-free closing contact) (requires IF Stratos modules)
  • Fault indicator light
  • LCD screen for indication of pump data and fault codes

Data exchange

  • Infrared interface for wireless data exchange with IR flash drive/IR monitor
  • Modbus RTU serial digital interface for connection to the Technical management
  • GTC centralized via an RS485 BUS system (possible with Stratos IF modules).
  • BACnet MS/TP slave serial digital interface for connection to management
  • GTC Centralized Technique using an RS485 BUS system (possible with IF Stratos modules).
  • Modbus CAN serial digital interface for connection to the Technical management
  • GTC centralized via a CAN BUS system (possible with Stratos IF modules).
  • LON serial digital interface for connection to a LONWorks network (possible with Stratos IF modules)
  • PLR serial digital interface for connection to Central Technical Management (GTC) via Wilo interface converters or company-specific coupling modules (possible with Stratos IF modules)

Double pump management (double pump or 2 single pumps)

  • Main/standby operation (automatic switchover in case of failure/alternation of pumps by time): different combinations are allowed with IF Stratos modules (accessories)
  • Parallel operation (connection and disconnection of peak load with optimized performance): different combinations are allowed with IF Stratos modules (accessories)


  • Pump
  • Incl. thermal insulation
  • Incl. joints in the threaded connection
  • Incl. washers for flange bolts (in nominal connection diameters DN 32 - DN 65)
  • Incl. installation and maintenance instructions

Technical data

  • Permissible temperature range -10 °C to +110 °C
  • Power supply 1~230 V, 50/60 Hz
  • IP protection type X4D
  • Threaded or flanged connection (depending on type) Rp 1 up to DN 100
  • Max. working pressure of standard execution: 6/10 bar and 6 bar (special execution: 10 bar or 16 bar)


  • Pump casing: Gray cast iron with cataphoresis lacquering
  • Thermal insulation: Polypropylene
  • Shaft: Stainless steel
  • Bearing: Carbon, metal impregnated
  • Impeller: Synthetic material


  • Wet rotor circulator pump with EC motor and integrated automatic power adaptation
  • Red button and graphic display technology
  • Motor protection with electronic trip system
  • Plug connection for expanding functions with optional IF modules for Centralized Technical Management (GTC)
  • Impeller with angled blades in three dimensions and carbon fiber composite diaphragm


Download Wilo Stratos technical manual

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      Don't just trust our words.


      Service 10!,

      Problems with transportation and after a WhatsApp and a call the next day we received our robot.

      They called us to confirm that everything was ok, highly recommended.

      Esther L.S.

      Marbella, Malaga


      Material received in 48 hours,

      20 minutes on the phone for installation questions and THANK YOU THANK YOU THANK YOU.

      100% professionals

      Alvaro P.

      B. of Salamanca, Madrid


      5 Stars. There are 5 of us and we are very happy with the hot water. After searching for information for almost a month on low-consumption hot water systems, we decided on b. heat only hot water. Delivery in just 3 days from the web order.

      Delivery was delayed a day due to the height of the package but then everything was perfect.

      Thank you :)

      Angela R. and Lucas A.

      El Limonar, Malaga