BRV Bonetti Rubinetterie Valduggia S.r.l.


Regolare e distribuire energia pulita

ModvFresh Basic

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

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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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°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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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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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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726 - Basic Series

Anti-scald thermostatic mixing valve for medium and small applications. Compact size. Available Kvs: 1.5, 1.8 and 3.4 (news from October 2019).

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M2 MIX3 - DN32

2-Way pump unit with 3-way mixing valve

The unit for 1”1/4 (180 mm) circulating pumps consists of:


  • Connection.
  • 3-way mixing valve.
  • High efficiency synchronous pre-wired circulating pump (for the models that include it).
  • Flanged ball valve supplied with in-handle thermometer (coded red, range 0°C-120°C).


  • Flanged ball valve supplied with in-handle thermometer (coded blue; 0°C-120°C).
  • “T” Connection for mixing valve with 20 mbar non return valve (ball valve side).
  • Connection.

Centre distance 125 mm. EPP insulation box (Measurements: 250x400x170 mm).
PN 10, max temperature 110°C (unit without pump).
External connections:  1”1/4 Female.

For power up to 93 kW (with Δt 20 K) and maximum flow 4000 l/h.
Kvs Value: 13,0.
Approximate data calculated with a 8 m nominal lifting power circulating pump (Wilo Stratos PARA 30/1-8). For an accurate measuring or for higher flows, please refer to the diagram.
Synchronous circulating pumps:
Grundfos Alpha 2L 32-60 (A6)
Wilo Stratos PARA 30/1-7 (PA1-7)
Wilo Stratos PARA 30/1-8 (PA1-8)

We suggest you to install two isolating valves Art. 55AMMS with nut and gasket (see Correlated Articles) before the pump unit to allow an easy service or replacement of the components of the unit.

Servomotor M21: 3 points servomotor for mixing valve. Bidirectional, reversible with fixed limit switches for an operating range of 90°. 230V, 2 min., torque: 5 Nm. IP42.
Several models available: see the section “Servomotors”.

AHC20 servomotor: basic climatic controller with servomotor and outside sensor, with climatic regulation for mixing valve with electronic control to keep fixed the selected temperature of the room. Bidirectional, reversible with fixed limit switches for an operating range of 90°, 2 min., torque: 6 Nm. Power supply 230V. IP42.

CMP25-2 climatic controller: “touch screen” climatic controller with servomotor for mixing valve. Bidirectional, reversible with fixed limit switches for an operating range of 90°. 230V, 2 min., torque: 10 Nm. IP42.

Typical curves of pump unit and circulating pumps

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Measuring and check of a DN32 system

  Clicking on the icon at side it is possible to download an Excel file dealing with the measuring and the check of a DN32 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.

M2 MIX3:
Code 1”1/4: 20555R-M3 - with circ. pump: 20555R-M3-(A6/PA1-7/PA1-8

M2 MIX3 with built-in M21 servomotor:
Code 1”1/4: 20555R-M3-M21 - with circ. pump: 20555R-M3-(A6/P7/P8)-M21

M2 MIX3 with built-in AHC20 servomotor:
Code 1”1/4: 20555R-M3-AHC - with circ. pump: 20555R-M3-(A6/P7/P8)-AHC

M2 MIX3 with built-in CMP25-2 servomotor/climatic controller:
Code 1”1/4: 20555R-M3-CMP - with circ. pump: 20555R-M3-(A6/P7/P8)-CMP

Note: in units with pre-assembled pump, the pumps Wilo Stratos Para 30/1-7
and 30/1-8 are respectively identified in the code with P7 and P8.

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