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BCU 460, BCU 465 · Edition 11.19
46
Valve proving system
Test volume V
p1
Test volume V
p1
is calculated from the valve volume V
V
,
added to the volume of the pipe V
R
for each additional
metre in length L.
L
V
p1
= V
V
+ L
x
V
R
Valves
Pipe
Type
Volume V
V
[l]
DN Volume per metre
V
R
[l/m]
VAS 1
0.08
10
0.1
VAS 2
0.32
15
0.2
VAS 3
0.68
20
0.3
VAS 6
1.37
25
0.5
VAS 7
2.04
40
1.3
VAS 8
3.34
50
2
VAS 9
5.41
65
3.3
VG 10
0.01
80
5
VG 15
0.07
100
7.9
VG 20
0.12
125
12.3
VG 25
0.2
150
17.7
VG 40/VK 40
0.7
200
31.4
VG 50/VK 50
1.2
250
49
VG 65/VK 65
2
VG 80/VK 80
4
VK 100
8.3
VK 125
13.6
VK 150
20
L
V
p1
= V
V
+ L
x
V
R
Valves
Pipe
Type
Volume V
V
[l]
DN Volume per metre
V
R
[l/m]
VK 200
42
VK 250
66
The measurement time required for the test volume V
p1
must be set on the basis of the calculation using pa-
rameter A056.
For the calculation, see page 47 (Calculation exam-
ples).
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