Data Sheet

ET Valve
D100022X012
Product Bulletin
51.1:ET
December 2012
21
Table 1 5. Port Diameters and Valve P lug Travel for Cavitrol III Cage
ET
VALVE SIZE, NPS
ONE-STAGE CAGE TWO-STAGE CAGE
Port Diameters Valve Plug Travel
(1)
Port Diameters Valve Plug Travel
mm
1 33.3 25 25.4 25
1-1/2 47.6 22 33.3 38
2 58.7 29 47.6 51
2-1/2 73.0 38 58.7 64
3 87.3 41 7.30 76
4 111.1 54 73.0 102
6 177.8 57 136.5 102
8 203.2 86 177.8 152
Inch
1 1.3125 1 1 1
1-1/2 1.875 0.875 1.3125 1.5
2 2.3125 1.125 1.875 2
2-1/2 2.875 1.5 2.3125 2.5
3 3.4375 1.625 2.875 3
4 4.375 2.125 2.875 4
6 7 2.25 5.375 4
8 8 3.375 7 6
1. The travel listed is the maximum travel that can be obtained for the given size. In situations where increased valve capacity is not needed, standard ET valve travels should be utilized in
selecting the actuator.