Pressure Drop Of The Pipework - Viessmann VITOSOL 100-F SV Technical Manual

Information regarding design and operation
Flow rate
(total collector area)
l/h l/min
125 2.08
150 2.50
175 2.92
200 3.33
250 4.17
300 5.00
350 5.83
400 6.67
450 7.50
500 8.33
600 10.00
700 11.67
800 13.33
900 15.00
1000 16.67
1500 25.00
2000 33.33
2500 41.67
3000 50.00
Recommended pipe dimension

Pressure drop of the pipework

For water/glycol mixtures at temperatures higher than 50 °C.
Flow rate
(total collector area)
l/h
100
125
150
175
200
225
250
275
300
325
350
375
400
425
450
475
500
525
550
575
600
625
650
675
700
725
750
775
800
825
850
VITOSOL
Flow velocity in m/s
Pipe dimension
DN 10 DN 13 DN 16
Dimensions
12 x 1 15 x 1 18 x 1
0.44 —
0.53 0.31
0.62 0.37
0.70 0.42
0.88 0.52
1.05 0.63
— 0.73
— 0.84
— 0.94
— —
— —
— —
— —
— —
— —
— —
— —
— —
— —
Pressure drop per m pipe length (including valves) in mbar/m / kPa/m
Pipe dimension
DN 10 DN 13
Dimensions
12 x 1 15 x 1
4.6/0.46
6.8/0.68
9.4/0.94
12.2/1.22
15.4/1.54
18.4/1.84
22.6/2.26
26.8/2.68
(cont.)
DN20 DN25
22 x 1 28 x 1.5
— —
— —
0.24 —
0.28 0.18
0.35 0.22
0.41 0.27
0.48 0.31
0.55 0.35
0.62 0.40
0.69 0.44
0.83 0.53
0.97 0.62
— 0.71
— 0.80
— —
— —
— —
— —
— —
DN 16
18 x 1
4.4/0.44
5.4/0.54
6.6/0.66 2.4/0.24
7.3/0.73 2.8/0.28
9.0/0.90 3.4/0.34
10.4/1.04 3.8/0.38
11.8/1.18 4.4/0.44
13.2/1.32 5.0/0.50
14.8/1.48 5.6/0.56
16.4/1.64 6.2/0.62
18.2/1.82 6.8/0.68
20.0/2.00 7.4/0.74
22.0/2.20 8.2/0.82
8.8/0.88
9.6/0.96
10.4/1.04
11.6/1.16
DN32 DN40
35 x 1.5 42 x 1.5
— —
— —
— —
— —
— —
— —
— 0.11
0.23 0.13
0.25 0.14
0.28 0.16
0.34 0.19
0.40 0.22
0.45 0.25
0.51 0.28
0.57 0.31
0.85 0.47
1.13 0.63
— 079
— 0.94
DN20 DN25
22 x 1 28 x 1.5
2.0/0.20
2.2/0.22
2.4/0.24
2.6/0.26
2.8/028
3.0/0.30
3.4/0.34
3.6/0.36
3.8/0.38
4.2/0.42
4.4/0.44
4.8/0.48
5.0/0.50
5.4/0.54
5.8/0.58
6.0/0.60
6.4/0.64
6.8/0.68
7.2/0.72
VIESMANN
—
—
—
—
—
—
—
0.09
0.10
0.12
0.14
0.16
0.19
0.21
0.23
0.35
0.46
0.58
0.70
18
1.8/0.18
1.9/0.19
2.0/0.20
2.2/0.22
2.3/0.23
2.4/0.24
2.5/0.25
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