Sabiana Carisma CRC-ECM Technical Manual page 66

Accessories for
CRC–ECM / CRT–ECM / CRS–ECM
CRC–ECM / CRT–ECM / CRS–ECM version
The valve upstream-downstream minimum differential pressure ("p1" – "p3"), which depends on the valve calibration
value, must be exceeded to access the constant flow rate field.
DN 10 Model
DN 20 Model
Benefits
• Reduced dimensions.
• Easy installation on 2 or 4 pipe devices.
• Pre-regulation
of the nominal value set even with installed actuator.
• Easy display of the nominal value set.
Nominal values are indicated in 10 l/h without any conversion.
• Guarantee of constant flow rate set even with partial loads.
• Pre-regulation
can be blocked and leaded with the locking ring.
Technical features
dn M f R
odel low
dn 10
dn 15
150 – 1050
dn 20
180 – 1300
Operation limits of the balancing valves
• Maximum operating temperature 120°C
• Maximum operating pressure 16 bar
• Maximum % of water/glycol mixture 50%
66
R ( l/h )
Kvs
ate ange
90 – 450 1,1
1,8
2,5
• Minimum operating temperature -10°C
• Maximum differential pressure 4 bar
Carisma
DN 15 Model
LEGEND:
Pd = Min. differential pressure "p1" – "p3" (bar)
E.g., when sizing the system pump, in which the DN 10 valves will be
installed and in which 210 l/h are constantly required for each device,
consider a useful pressure of 0.3 bar (to compensate the pressure drop
of the valve) for each balancing valve. Therefore, the pressure drop
values produced by the system balancing valves must be summed and
the pump must be sized to produce a pressure equal to or greater than
the value obtained previously.