BRV Bonetti Rubinetterie Valduggia S.r.l.

MODVLVS

Regolare e distribuire energia pulita

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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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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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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Logico

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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1610

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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SET 10101

Non return valve with seat holder washer for 3-way mixing valve and fixed temperature mixing valve.
Non return valve to be installed into the connection of the mixing valve on the return way of the pump units with 3-way mixing valve or fixed temperature mixing valve. It prevents back flow of energy in presence of complex installations (f.i. differents circulating pumps and/or several mixing valves on the distributor).

Minimum opening pressure: 20 mbar.
Kvs 8,8.
Max Temperature 110°C.
Unwanted circulation into a heating installation
 
Into a heating installation equipped with pump units mounted on a distributor, sometimes an “unwanted circulation“, pointed out in orange colour in the illustration, could start. In the above shown example, the circulating pump of the direct pump unit (P2) produces this circulation into the mixed circuit (Circuit 1), that, as a consequence, warms up. This happens owing to different elements: the kind of mixing valve of the Circuit 1, the position of it (open, closed or mixing) and the possibility that the circulating pump P1 is stopped.

To avoid the unwanted circulation it is necessary to put in the indicated position (2) an additional check valve, specific for the model of installed pump unit.



 Schema indicativo con raffigurata una
miscelatrice a tre vie DN25


Held in seat check valve
 
Attention: in the DN25 Pump Units, once the check valve is installed it is impossible to remove itwitout broken it.

Check valve fitted as standard in the pump unit.
Additional check valve.

Code: SET10101