Brochure
Dimensions
CALEFFI
L/MIN
4
3
2
1
A
C
B
A
3/4"
C
2
3/4
”
B
3/4"
Code
669050
Weight (lb)
0.32
Flow meter series 669
Function
The flow meter is a device that is mounted on the return manifold of panel systems. It instantaneously displays the actual
flow values in each individual circuit during the balancing phase, making the balancing operations of the system easier and
more accurate.
Patented
1. Supply manifold complete with shut-off valves, series 666
2. Supply manifold complete with balancing valves, series 663
3. Return manifold complete with micrometric balancing valves, series 667
4. Shut-off ball valve, series 391
5. Thermo-electric actuator, series 656
6. Flow meter, code 669050
7. End fitting complete with automatic air vent valve
8. End fitting complete with automatic air vent valve
9. Pair of mounting brackets, code 658100
10. DARCAL fitting, series 680
11. Inspection wall box, series 659
12. Automatic air vent valve, code 502043
13. Differential bypass kit, code 668000
14. Double radial end fitting, code 599474
15. Drain cock, code 538402 FD
MANIFOLDS AND ACCESSORIES
T
echnical specification
Materials: - body: brass
- measuring spring:
stainless steel
- seals: EPDM
- transparent cylinder and internal protection: PSU
- float-indicator: POM/PTFE
Medium: water, glycol solutions
Max. per
centage of glycol: 50%
Max. working pr
essur
e:
85 psi (6 bar)
Temperature range: 41 to 210°F (5 to 98°C)
Flow measurement scale: 1 to 4 l/min
Accuracy: ± 10%
Dual readout scale
Connections:
3/4” M x 3/4” F nut
Product range
Code 669050 Flow meter
Size 3/4”
°C
0
20
80
60
40
°C
0
20
80
60
40
10
0
8
6
4
2
10
0
8
6
4
2
10
0
8
6
4
2
10
0
8
6
4
2
10
0
8
6
4
2
10
0
8
6
4
2
CA
LEFFI
CALEFFI
10
0
8
6
4
2
10
0
8
6
4
2
10
0
8
6
4
2
10
0
8
6
4
2
10
0
8
6
4
2
10
0
8
6
4
2
CA
LEFFI
CALEFFI
CA
LEFFI
CAL EFFI
912 46 57811 10
13
12
15
14
3
CAL EFFI
CA
LEFFI