BRV Bonetti Rubinetterie Valduggia S.r.l.


Regolare e distribuire energia pulita


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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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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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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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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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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ModvFresh Basic

Compact heat exchange unit to deliver fresh 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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M2 MIX3 - DN20

2-Way pump unit with 3-way mixing valve

The unit for 1/2” (130 mm) circulating pumps consists of:


  • Connection.
  • 3-way mixing valve.
  • Synchronous pre-wired circulating pump with cable 2 m. long (for the models that include it).
  • Flanged ball valve supplied with in-handle thermometer (coded red, range 0°C-120°C).


  • 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 90 mm. EPP insulation box (Measurements: 180x302x142 mm).
PN 10, max temperature 110°C (unit without pump).
Connections: 3/4” Male with swivel tang to the heat source or to the distributor. 3/4” Female to the user.

For power up to 28 kW (with Δt 20 K) and maximum flow 1200 l/h.
Kvs Value: 4,0.
Approximate data calculated with a 6 m nominal lifting power circulating pump.
For an accurate measuring or for higher flows, please refer to the diagram.
Circulating pumps:
Wilo Yonos Para RS 15/6 RKC (C6)
Grundfos UPM3 AUTO L 15-70 (UL7)
Wilo Yonos Para RS 15/7,5 RKC (C8)

We suggest you to install two isolating valves Art. 552 3/4” (see "Distributor" section) before the pump unit to allow an easy service or replacement of the components of the unit.

TRM20 Servomotor

Servomotor TRM20: 3 points servomotor for mixing valve. Bidirectional, reversible.
Operating range of 90°, 230V, 105 s, torque 3 Nm. IP40.

Typical curves of the pump unit and of the circulating pumps

Click to zoom

Measuring and check of a DN20 system

  Clicking on the icon at side it is possible to download an Excel file dealing with the measuring and the check of a system consisting of one distributor and of up to three DN20 pump units. It is possible to select the model and the working parameters for each pump unit, so getting a check of the powers of the system and the residual lifting power for each way. In case of underfloor heating loops the maximum surface manageable is also estimated. Changing the starting data it is possible to simulate different employment situations and to make your considerations.

M2 MIX3:
Code: 20255R-M3 - with circ. pump: 20255R-M3-(C6/UL7/C8)

M2 MIX3 with built-in TRM20 servomotor:
Code: 20255R-M3-TRM - with circ. pump: 20255R-M3-(C6/U7/C8)-TRM

Note: in units with pre-assembled pump, the pump
Grundfos UPM3 AUTO L 15-70 is identified in the code with U7.

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