Product Overview

Circuits balanced with FLOWCAL
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.
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
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.
FULL LOAD PARTIAL LOAD
Manual valve
Control
valve
(closed)
Manual valve
100 %
100 %
100 %
F
low rate
140 %
0 %
120 %
F
low rate
a a
a a
a a
a a
a a
a a
Unbalanced circuits
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.
50 %
140 %
180 %
Flow rate
17∞
2
2∞
24∞
Circuit balancing