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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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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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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°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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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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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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Modular multi-zone distribution box for wall-mounted gas boilers or heat pumps. Three types of available pump units: direct, mixed motorized, mixed fixed point.

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Thermal Solar

Thermal solar

The BRV ModvSol range, thanks to the versatility of ModvlvS, offers a complete program of pump units and accessories for the solar systems. In order to give a better service to our Customers, our products are tested and checked at our factory.

  ModvSol is easy and fast to be mounted. The unit has a supply way and a return way, it is preassembled and it is housed into a special insulation box that can be wall mounted thanks to a special wall mounting kit. Several connections of different sizes are available.

The several models have important advantages, such as a security unit CE and TÜV with a manometer suitably made for the solar installation and a special flowmeter that allows an easy starting of the installation.
The flow regulator has the filling and draining valves in a very close position; this detail allows to minimize the residual quantity of air in circulation after the filling operations. The ball valves before and after the circulating pump allow its easy removal without emptying the installation. All the sealing joints are glicole resistant. The solar unit has a working temperature of 120°C and 160°C for a short time. Several connections of different sizes are available.  
  The picture at side shows a “pilot” installation, installed in 2005 and working up to the present, with low tension circulating pump. The current is supplied by a P.V. collector and the plant is fully independent from the energetic point of view. It is working every day to check its good functionning and it is at customers’ and vistors’ disposal.
The air vent, current article on the most of the pump units, expels the air bubbles that are in the circuit in a continuous and effective way; in fact when the  heat-conducting fluid goes through the air vent, the important  difference of diameter between it and the remaining components of the circuit gives rise to a reduction of the speed of the circulation of the fluid, in this way helping the separation of the air bubbles that go towards the vent valve.

The incessant search for the quality pushed
BRV to make a test of the air vent,
a report of which is available.
draw model 2005
    Supplied for the first time by BRV on the european market on 1999, the special “Solar” check valve mounted both in the supply way and in the return way, prevents the migration of energy from the water tank to the solar collector in any working condition, together with very low headlosses with an advantage for the efficiency of the system. It is also possible to exclude it in case of service (f.i. to drain the installation) by rotating the thermometer handle by 45°.
Now the “Solar” ball, used all over the world, by several manufacturers, is an important point of reference for the most of the forced circulation solar thermal systems.

Installation examples

Heat source:
Solid fuel boiler.

Buffer tank loading from the boiler:
anti-condensing pump unit M2 MIX3 CS DN32;
Δt 20 K.

Buffer tank loading from the solar system:
Version 1: employment of a solar thermal pump unit S2 Solar 30 and of an unmixed pump unit M2 DN25, with the interposition of a heat exchange unit S2 Exchange.
Version 2: employment of a solar thermal pump unit Solo 2 for stratified loading.

HDW users:
ModvFresh 4 pump unit with recycling line.

Distribution: heating distributor HV 70/125 DN25 for 6 pump units.

Heating users:
- Medium power radiator line, Δt 20 K:
mixed pump unit CLIMA 3 DN25;
- Low power radiator line, Δt 20 K:
mixed pump unit M2 MIX3 DN25;
- Low power under floor heating line, Δt 8 K:
fixed temperature pump unit M2 FIX3 DN25;
- Low power under floor heating line, Δt 15 K:
mixed pump unit M2 MIX33 DN25;
- Low power radiator line, Δt 20 K: mixed pump unit with electronic control for constant temperature M2 MIX3 FIX DN25;
- Medium power wall radiant heating line, Δt 8 K: employment of a heat exchange unit M2 Exchange to separate from the hydraulic point of view the users line (to keep the piping clean). Unmixed pump unit M2 DN25 on the primary line and mixed pump unit M2 MIX3 Energy G21 DN25 on the secondary line, to meter the produced energy.

Heat source:
Solar and geothermic energy.

Version 1: forced circulation solar thermal installation with the employment of a solar pump unit S1 Solar 10 to load a HDW tank.
Version 2: natural circulation solar installation with the employment of solar collectors with HDW tank included.


Solar Kit 1, solar-boiler connection kit, to mix users’ HDW.

Attention: the representations are to be considered just as an indication and they have no completeness pretension.