Riello CSV 25 R Installation Instructions Manual page 9

GENERAL INFORMATION
Pressure drop in solar collectors
PRESSURE DROP (mbar)
900
800
700
600
500
400
300
200
100
0
0
_______ CSV 25 R
_ _ _ _ CSV 35 R
Diameter of connection pipes for a specific flow rate of 30 lt/m
Total surface area (m
Diameter of copper pipe (mm)
Diameter of steel pipe (inch)
1000 2000
) 2 - 4
2
10 - 12
3/8" - 1/2"
3000 4000
2 h
6 - 12
14
1/2"
9
5000 6000
FLOW RATE (l/h)
14 - 20
18
3/4"