BRV Bonetti Rubinetterie Valduggia S.r.l.


Regolare e distribuire energia pulita

°Caleon Thermostat - Wi-Fi

Elegant chrono-thermostat with TFT capacitive touch panel. Wi-Fi N 2.4 Ghz connection for remote control by °Caleon app.

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Mixing kit for ModvFresh Basic

35÷60°C thermostatic mixing kit designed for ModvFresh Basic, with anti-scald thermostatic mixing valve for small applications.

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DomvS Clima

Control unit for manifolds of heating and cooling radiant panels up to 200 m2. Fixed point thermostatic mixer or motorized rotary mixing valve. LCD room control unit.

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ModvFresh Basic

Compact heat exchange unit to deliver fresh domestic hot water (DHW).

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Full bore 2-way zone ball valve, with bidirectional actuator with quick connection. Dimensions from 1/2" DN15 to 1"1/4 DN32.

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726 - Basic Series

Anti-scald thermostatic mixing valve for medium and small applications. Compact size. Available Kvs: 1.5, 1.8 and 3.4.

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Multifunctional compact hydraulic module for the management of a direct circuit, a mixed circuit and the production of domestic hot water (DHW)

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M3 FIX3 - DN25

3-Way pump unit with by-pass and fixed temperature mixing valve

The unit for 1” (180 mm) circulating pumps consists of:


  • Connection.
  • Thermostatic mixing valve with temperature setting range, models F1, F2, F3 and F4.
  • High efficiency synchronous pre-wired circulating pump (for the models that include it).
  • 3-way flanged ball valve supplied with in-handle thermometer (coded red, range 0°C-120°C).

Balancing by-pass valve (0-0,5 bar).


  • 3-way flanged ball valve with non return valve 20 mbar (which can be excluded by rotating the handle by 45°) supplied with in-handle thermometer (coded blue; 0°C-120°C).
  • “T” Connection for mixing valve.
  • Connection.

Centre distance 125 mm. EPP insulation box (Measurements: 250x380x170 mm).

PN 10, max temperature 110°C (unit without pump).
External connections: 1” or 1”1/4 Female.

For power up to 35 kW (with Δt 20°C) and maximum flow 1500 l/h.
Kvs Value: please refer to the table below.
For an accurate measuring or higher flows, please refer to the curves shown in the technical section.
Available circulating pumps:
Wilo Yonos Para RS 25/6 (Y6)
Grundfos UPM3 Auto L 25-70 (UL7)
Wilo Yonos Para RS 25/7,5 (Y8)
Available thermostatic mixing valves:
Temperature setting range:
from 20 to 45°C (F1-F3)
from 45 to 70°C (F2-F4)

We suggest you to install two isolating valves Art. 552 (see Correlated Articles) before the pump unit to allow an easy service or replacement of the components of the unit.
Approximate data for underfloor heating and radiators heating systems
Model Field of
Kvs Approximate power and flow of the installation
circulating pump
lifting power
Approximate surface of the underfloor heating system
F1 (**)
20-45 °C 8 K 2,2 4,5 kW - 500 l/h Wilo Yonos Para RS 25/6 5 mH2O Up to 50 m2
F2 45-70 °C 20 K 2,2 11 kW - 500 l/h Wilo Yonos Para RS 25/6 5 mH2O -
F3 (**)
20-45 °C 8 K 3,3 14 kW - 1500 l/h Wilo Yonos Para RS 25/7,5 5 mH2O Up to 150 m2
F4 45-70 °C 20 K 3,3 35 kW - 1500 l/h Wilo Yonos Para RS 25/7,5 5 mH2O -
(**) Modelli compatibili con l’applicazione in impianti che eseguono la funzione di raffrescamento (compatibilmente con il campo di regolazione).
Thanks to the new MultiMix thermostatic mixer the pump unit can give the maximum supply temperature, the same as the one of the inlet hot water. If lower temperatures are requested, to allow a regular and continuous mixing, it is necessary that the inlet hot water temperature is 3÷5 K higher than the requested value of the outlet mixed temperature.
F1 and F3 models:
Th: 55°C ; Tc: 24°C ; Tmix: 32°C
F2 and F4 models:
Th: 75°C ; Tc: 40°C ; Tmix: 55°C
Optional: safety
bimetallic thermostat.
(see section
“Servomotors and
Room Thermostats")
Ordered in the group by adding “-T” in the code: f.i.: 20355R-F3-Y6-T

Measuring and check of a DN25 system

  Clicking on the icon at side it is possible to download an Excel file dealing with the measuring and the check of a DN25 pump unit; it is possible to select the model and the working parameters, so getting a check of the power and of the residual lifting power. In case of underfloor heating system the surface that can be managed is approximately calculated. Changing the starting data it is possible to simulate different employment situations and to make your considerations.

Code 1”: 20358R-(F1/F2/F3/F4)  -  with circ. pump: 20358R-(F1/F2/F3/F4)-(Y6/UL7/Y8)
Code 1”1/4: 20458R-(F1/F2/F3/F4)  -  with circ. pump: 20458R-(F1/F2/F3/F4)-(Y6/UL7/Y8)

Standard version: right supply.
Left supply version available with extra price: see price list.