Cv vs opening percentage — PSM reference catalogue data
Rated Cv 1.5NPS 0.25"Characteristic Equal %Cv ratio at 50% 0.242Rangeability 40Confidence very lowBack-test error ±62%
Opening %
Cv
% of rated
10
0
2%
20
0.1
6%
30
0.1
9%
40
0.2
16%
50
0.4
24%
60
0.6
37%
70
0.8
56%
80
1.1
75%
90
1.4
89%
100
1.5
100%
This table is not manufacturer measured data: Cv comes from the scaling law fitted to the measured series (back-test error ±62%, confidence very low). Confirm with PSM engineering before ordering.