Product Overview

Circuits balanced with FlowCal
DYNAMIC CIRCUIT BALANCING
Modern heating and air-conditioning systems have to guarantee a high level of thermal comfort with a low energy consumption. This means
supplying the system terminals with the correct design flow rates, to produce balanced hydraulic circuits.
FULL LOAD PARTIAL LOAD
FlowCalFlowCal
100 %
100 %
100 %
Flow rate
100 %
0 %
100 %
Flow rate
Circuits balanced with manual valves
FULL LOAD PARTIAL LOAD
Manual valve
Control
valve
(closed)
Manual valve
100 %
100 %
100 %
Flow rate
140 %
0 %
120 %
Flow rate
Unbalanced circuits
50 %
140 %
180 %
Flow rate
17°
22°
24°
Circuit balancing
FlowCal balances the
hydraulic circuit by
automatically controlling
the design flow rate to
each emitter. Even with
some circuits partially
closed by the control
valves, the flow rates in
the open circuits remain
constant at the nominal
value. The system always
provides the greatest
comfort and the highest
energy savings.
Traditionally, hydraulic
circuits are balanced
using manual calibration
valves. With these static-
type devices, such circuits
are difficult to balance
perfectly and have
operating limitations in
case of partial closure
by means of the control
valves. The flow rate in
the open circuits does
not remain constant
at the nominal value.
In case of an unbalanced
circuit, the hydraulic
imbalance between
emitters creates areas
with temperatures which
are not uniform, and, as
a consequence, problems
with thermal comfort
and higher energy
consumption.