Data Sheet

HP Valve
D101635X012
Product Bulletin
51.2:HP
October 2014
8
Table 5. Port Diameters, Valve Plug Travel, Y oke Boss Diameters for TSO (Tight Shutoff) Trim
VALVE
TYPE
TRIM
MAX TRAVEL YOKE BOSS SIZE
PORT DIAMETER
C
V
REDUCTION
AT 100%
TRAVEL
(1)
UNBALANCE
AREA
Nominal Actual TSO
mm Inch mm Inch mm Inch mm Inch Inch
2
Balanced Plugs–Flow Down Only
HPT
NPS 3
(2)
CAV III 3-Stage 63.5 2.5 90 3-9/16 47.6 1.875 42.9 1.6875 5% 0.031
HPT
NPS 4
CAV III 3-Stage 76.2 3
90
127
3-9/16
5
73.0 2.875 68.3 2.6875 2% 0.047
HPT
NPS 6
CAV III 3-Stage 102 4
90
127
3-9/16
5
116 4.5625 111 4.375 0% 0.080
Standard 76.2 3
90
127
3-9/16
5
137 5.375 132 5.1875 4% 0.206
Unbalanced Plugs–Flow Down Only
HPS
NPS 2
CAV III 3-Stage 50.8 2 90 3-9/16 25.4 1 26.2 0.8125 0% 0.785
1. This column lists the percent reduction of published maximum C
V
of the trim listed in the TRIM column.
2. Not available with 5-inch yoke boss.
Figure 3. Typical Balanced TSO Trim
VALVE PLUG
SEAL
TSO PROTECTED
SOFT SEAT SEAL
W7020-1