A quarter-turn valve that uses a hollow, ported ball to start or stop flow.
Coming soon
Catalogue Cv curve & tableEngineering estimate
Cv vs opening percentage — PSM reference catalogue data
Rated Cv 14.2NPS 0.5"Characteristic Equal %Cv ratio at 50% 0.242Rangeability 40Confidence lowBack-test error ±47%
Opening %
Cv
% of rated
10
0.4
2%
20
0.8
6%
30
1.3
9%
40
2.3
16%
50
3.4
24%
60
5.3
37%
70
7.9
56%
80
10.6
75%
90
12.7
89%
100
14.2
100%
This table is not manufacturer measured data: Cv comes from the scaling law fitted to the measured series (back-test error ±47%, confidence low). Confirm with PSM engineering before ordering.