CIRCUIT BALANCING

Distribution manifold with automatic flow rate balancing

DB manifolds provide energy saving rates up to 25% compared to systems with flow-rate dynamic balancing.

These are the results achieved through the research carried out by the Department of Energy of the Politecnico of Turin (science director professor Stefano Corgnati): 12% of energy saving in a single residential unit / 14%÷25% of energy saving in a condominial boiler room with 8 residential units, based on the number of apartments with specific occupational profiles (system running 24/7, 7 hours of deactivation, 5 hours of deactivation).

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DB manifolds keep the flow rate constant inside the single hydraulic circuits within a min-max differential pressure range, independently from the working conditions of the other circuits.

It features the following functions:

Flow rate presetting: the project max flow rate is set for every single circuit and must remain constant;
Flow rate setting (see operation of the patented bonnet)
Room temperature optimization: temperature control in the various rooms can be enhanced by combining the manifold to thermo-electric actuators and thermostats.

The patended bonnet

The bonnet is the key element of dynamic control.

When the pressure varies upon opening or closing some circuits, the controlled-deformation membrane of the bonnet cartridge is engaged and changes its port section according to the setting flow rate, also in case of high differential pressures.

vitone con bilanciamento dinamico della portata

A manifold for every project: DB manifolds are available in multiple versions

DB manifolds are made with the main materials used in hydronic installations: brass, technopolymer and stainless steel.

Plus, they are available in the Low Flow or High Flow version based on the application need:

Regulation range of single circuit flow rate: Low Flow: 20÷160 l/h; High Flow: 10÷250 l/h
Working differential pressure range: Low Flow: 20÷60 kPa; High Flow: 30/40÷150 kPa
Flow rate meters: Low Flow: 0,4÷2,6 l/min; High Flow: 0,5÷5 l/min