Kromschroder FCU 500 - Page 54

FCU 500, FCU 505 · Edition 02.17 54
Valve proving system
Test volume V
p
Test volume V
p
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
P
= V
V
+ L x V
R
V
P
V1
V2
Valves Pipework
Type Volume V
V
[l] DN
Volume per metre
V
R
[l/m]
VAS 1 0.25 10 0.1
VAS 2 0.82 15 0.2
VAS 3 1.8 20 0.3
VAS 6 1.1 25 0.5
VAS 7 1.4 40 1.3
VAS 8 2.3 50 2
VAS 9 4.3 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
VK 200 42
VK 250 66
The measurement time required for test volumes V
p1
and V
p2
must be set on the basis of the calculation
using parameters 56 and 57. For the calculation, see
page 55 (Calculation examples).
The measurement time can be set to a value between
3 and 3600 seconds for the test volume V
p1
, and for
V
p1
+ V
p2
.
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