BRV Bonetti Rubinetterie Valduggia S.r.l.


Regolare e distribuire energia pulita

Solo 2

Pump unit for stratified loading to supply the heat produced by a solar thermal installation. Equipped with pre-programmed controller and Class A circulating pumps.

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Ball valve with filter in hot forged brass. To fill the installation. The filter can be easily removed, to be cleaned and inspected. Nickel plated.

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4-way motorizable rotating mixing valve for heating, cooling and solar thermal installations. Kvs from 2,5 up to 25.

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M2 FIX3 CS - DN20

2-Way pump unit with recycling thermic valve for solid fuel boilers. High efficiency circulating pumps. Start opening temperature 60°C, 45°C or 55°C.

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2-way pump unit with 3-way mixing valve and electronic circulating pump. Built-in Clima L 24VDC climatic controller for complex installations

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Remote control of the heating system for AHC40 and CMP25-2 climatic controllers. Automatic pairing with climatic controller.

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High performance thermostatic diverting valve. Adjustable temperature from 38°C up to 54°C. Kvs 2,5 towards the gate, 3,5 towards the gate 2.

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ModvFresh 1

Pump unit to deliver fresh HDW with thermostatic controller, flow rate up to 20 l/min or 40 l/min. Possibility to make a parallel connection of up to 5 units for power up to 500 kW.

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DomvS Circ 1

Hot domestic water recycling kit for storage tanks with coils. 35÷60°C. Available version provided circulating pump with temperature sensor and timer. Available Kvs: 2,5 and 4,0.

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Thermostatic control head with liquid gas sensor, compatible M30x1,5. EN 215 approved, TELL certification.

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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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MCCS 745

Anti-condensing recycling and distribution pump unit with thermostatic control of the return temperature to the solid fuel heating sources.

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Solar Kit 3

Solar-boiler thermostatic connection kit with adjustable diverting temperature. Control of the user temperature adjustable from 35°C up to 60°C with antiscald protection.

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3-way motorizable rotating mixing valve for heating, cooling and solar thermal installations. Working as mixer or diverter. Kvs from 2,5 up to 25.

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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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687 MIX

Very small size adjustment kit for distribution box, with motorizable 3-way rotating mixing valve. High efficiency circulating pump.

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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 MIX3 FIX - DN25

2-Way pump unit with 3-way mixing valve with electronic servomotor for the constant temperature. Heating and Cooling.

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Technical part

Technical part: DN25 Distributors

Distribution headers for heating installations made in electro-welded and painted iron pipe suitable for power up to 70 kW.

EPS 25 mm thermic insulation according to DIN 4102-B2 and galvanized steel
cover 0,55 mm thickness. Hydraulic test at 12 bar.
ModvlvS: connection center distance 125 mm. The range of the distributors is suitable for 1” ModvlvS pump units and DN32 1”1/4; for the latters you must use the special adapters.


Different pump units can be connected to a distributor,depending on the kind of the installation (f.i. underfloor heating system, radiator heating system, etc.) each pump unit for each branch of the installation; therefore the dynamics of the fluid that is flowing through the distributor is strongly influenced by the models of the pump units used, each of them with its flow and its working temperature.
Headlosses. For the above reasons the headlosses of a distributor are quantifiable in a difficult way. The diagrams show approximately the headlosses of the range of distributors HV 60 and HV 70 (draw. 1) and of the hydraulic switcher HW 60 (draw. 2).

Draw. 1: HV60 and HV70 distributors headlosses
Click to enlarge
MAX: the straight line shows the conditon of maximum headloss of each pump unit, corresponding to the the estreme working conditions of the distributor.

MIN: the straight line shows the conditon of minimum headloss of each pump unit, corresponding to the average working conditions of the distributor.

The surface between the two curves shows approximately the range of the headlosses in the different working conditions.
Draw. 2: HW60 hydraulic
switcher headlosses
Click to enlarge

Thanks to the hydraulic switcher the flows on the primary and on the secondary circuit are not necessarily the same. Please refer to the flows of the following table:

Model of
Model of
hydraulic switcher
Flow of the primary circuit
reccomended / maximum
Total maximum flow
of the secondary circuit
HV 60/125 (1”) HW 60/125-04 (1”) 2000 l/h    /    4000 l/h 4000 l/h
HV 70/125 (1”1/4) HW 60/125-05 (1”1/4) 3000 l/h    /    5000 l/h 5000 l/h