Data Sheet
Cavitrol III Trims
D100196X012
Product Bulletin
80.2:030
March 2012
8
Table 3. Standard Cavitrol III Trim (Linear Characteristic for Cavitrol III Two-Stage Trims)
(1, 2)
VALVE BODY RATING
AND DESIGN
VALVE SIZE,
NPS
Port Diameter Travel
Min
(3)
C
v
Max
C
v
UNBALANCE AREA
F
L
at
Maximum Travel
mm Inch mm Inch cm
2
Inch
2
CL600
ET
1
1-1/2
2
2-1/2
3
25.4
33.3
47.6
58.7
73.0
1
1.3125
1.875
2.3125
2.875
25
38
51
64
76
1
1.5
2
2.5
3
0.28
0.44
0.92
1.1
1.2
5.8
9.4
21
33
49
0.13
0.13
0.20
0.25
0.30
0.02
0.02
0.031
0.038
0.047
0.98
0.98
0.98
0.98
0.98
4
6
8
73.0
136.5
177.8
2.875
5.375
7
102
102
152
4
4
6
1.9
3.0
7.0
69
144
265
0.30
0.65
0.84
0.047
0.10
0.13
0.98
0.98
0.98
CL600
(4, 6)
EWT
4x2
6x4
8x4
8x6
12 x 6
12 x 8
47.6
73.0
73.0
136.5
136.5
177.8
1.875
2.875
2.875
5.375
5.375
7
51
102
102
127
152
152
2
4
4
5
6
6
0.92
1.9
1.9
3.0
3.0
7.0
22
71
81.5
178
208
272
0.20
0.30
0.30
0.65
0.65
0.84
0.031
0.047
0.047
0.10
0.10
0.13
0.98
0.98
0.98
0.98
0.98
0.98
CL2500 EHT
3, 4 x 3 47.6 1.875 64 2.5 0.61 24.1 0.20 0.031 0.98
4, 6 x 4 73 2.875 70 2.75 0.91 43.9 0.30 0.047 0.98
6, 8 x 6 111.1 4.375 95 3.75 1.5 75.8 0.50 0.077 0.98
CL900 and 1500 HPAS
and HPAT
1 22.2 0.875
(5)
38 1.5 0.36 7.39 3.88 0.601 0.98
2 44.5 1.75 51 2 0.58 14.0 0.19 0.029 0.98
CL2500 HPAS and HPAT
1 22.2 0.875
(5)
38 1.5 0.36 6.91 3.88 0.601 0.98
2 44.5 1.75 51 2 0.58 14.0 0.19 0.029 0.98
CL900, 1500, and 2500
HPS and HPT
1 22.2 0.875
(5)
38 1.5 0.36 7.39 3.88 0.601 0.98
2 44.5 1.75 51 2 0.58 14.0 0.19 0.029 0.98
CL900 and 1500
HPS and HPT
3 63.5 2.5 64 2.5 0.73 34.4 0.26 0.041 0.98
4 87.3 3.4375 76 3 0.90 58.1 0.31 0.056 0.98
6 133.4 5.25 102 4 1.72 123 0.59 0.092 0.98
1. Characterized cages are available. Consult your Emerson Process Management sales office for information.
2. Cv as low as 0.04 is available. Consult your E merson Process Management sales office for information.
3. Valves should not be required to throttle at a Cv less than the minimum Cv for an extended period of time. Erosion damage to the valve seats may result.
4. Values for CL900 NPS 8 x 6 and 12 x 8 EWT available in two-stage trim same as CL600 NPS 8 x 6 and 12 x 8 EWT.
5. Cavitrol III trim in the CL1500 and 2500, NPS 1, two-stage and in the NPS 2, three-stage valve uses unbalanced valve p lugs. These sizes and constructions are Design HPS/HPAS valves; other
valves in this section of the table are HPT/HPAT valves.
6. For larger sizes, consult your Emerson Process Management sales office.
Table 4. Standard Cavitrol III Trim (Linear Characteristic for Cavitrol III Three-Stag e Trims)
(1,2)
VALVE BODY RATING
AND DESIGN
VALVE SIZE,
NPS
Port Diameter Travel
Min
(3)
C
v
Max
C
v
UNBALANCE
AREA
F
L
at
Maximum Travel
mm Inch mm Inch cm
2
Inch
2
CL2500 EHT
3, 4 x 3 33.3 1.3125 64 2.5 0.73 13.1 0.13 0.02 0.99
4, 6 x 4 58.7 2.3125 70 2.75 1.0 20.8 0.25 0.038 0.99
6, 8 x 6 111.1 4.375 95 3.75 2.8 66.7 0.50 0.077 0.99
CL900, 1500, and 2500
HPAS and HPAT
1 --- --- --- --- --- --- --- --- ---
2 25.4 1
(4)
51 2 0.59 6.73 5.06 0.785 0.99
CL900, 1500, and 2500
HPS and HPT
1 --- --- --- --- --- --- --- --- ---
2 25.4 1
(4)
51 2 0.59 6.73 5.06 0.785 0.99
CL900 and 1500
HPS and HPT
3 47.6 1.875 38 1.5 1.20 16.5 0.20 0.031 0.99
4 73 2.875 76 3 1.70 27.8 0.30 0.047 0.99
6 115.9 4.5625 102 4 3.10 65.0 0.52 0.080 0.99
1. Characterized cages are available. Consult your Emerson Process Management sales office for information.
2. Cv as low as 0.04 is available. Consult your E merson Process Management sales office for information.
3. Valves should not be required to throttle at a Cv less than the minimum Cv for an extended period of time. Erosion damage to the valve seats may result.
4. Cavitrol III trim in the CL1500 and 2500, NPS 1, two-stage and in the NPS 2, three-stage valve uses unbalanced valve p lugs. These sizes and constructions are HPS/HPAS valves; other valves in
this sec tion of the table are HPT/HPAT valves.