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 (news from October 2019).

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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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ModvFresh Basic

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

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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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M2 Energy - DN25

2-Way direct pump unit made for the fitting of an energy meter

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


  • Connection.
  • Flanged ball valve with T-handle.
  • 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). The third way M10x1 allows the dip fitting and the lead sealing of a ø5x45 mm sensor.


  • 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).
  • Distance piece made in plastic 3/4”x110 mm (DN15) or 1”x130 mm (DN20) that has to be removed, after having cleaned the installation, to fit the energy meter.
  • Flanged ball valve with T-handle.
  • Connection.

Centre distance 125 mm. EPP insulation box (Measurements: 250x380x170 mm).
PN 10, max temperature 90°C (*).
External connections:  1”
or 1”1/4 Female.

For power up to 50 kW (with Δt 20 K) and maximum flow 2150 l/h (*).
Kvs value: 8,0 (*).
Approximate data calculated with a 6 m nominal lifting power circulating pump.
For an accurate measuring or for higher flows, please refer to the curves shown in the technical section.
(*) The data are relevant to the pump unit without circulating pump and without energy meter installed.
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)
The pump units ModvlvS Energy are made to meter the energy in centralized heating and cooling installations. The second temperature sensor is directly put into isolating valve of the supply way, without any adapter or pit. This special 3-way ball valve, placed after the circulating pump, allows the lead sealing of the sensor and also the replacement of it without draining the installation: it is enough to close the valve to isolate the sensor from the hydraulic circuit.
In this way the placement of the energy meter, after having cleaned and serviced the circuit or replaced it, is very easy.

Measuring and check of a Energy 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 Energy 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.

RUNNING OUT  Code DN15, connection 1": 203518-15  -  with circ. pump: 203518-(Y6/UL7/Y8)-15
Code DN20, connection 1": 203518-20  -  with circ. pump: 203518-(Y6/UL7/Y8)-20

RUNNING OUT  Code DN15, connection 1"1/4: 204518-15  -  with circ. pump: 204518-(Y6/UL7/Y8)-15
Code DN20, connection 1"1/4: 204518-20  -  with circ. pump: 204518-(Y6/UL7/Y8)-20

Note: The DN to which the identification codes of the units
are related to the nominal diameter of the energy counter.