Control valves
Control valves
Kv (Cv US) values
For conversion: Cv (UK) = Kv x 0.963
1 stage perforated trim (continued)
Trim
DN15 DN20 DN25
DN32
DN40 DN50 DN65 DN80 DN100 DN125 DN150
DN200
DN250 DN300
Full port
Equal percentage
4
(4.6)
6.3
(7.3)
10
(11.6)
16
(18.5)
25
(29)
25
(29)
50
(58)
80
(92)
551
(637)
787
(909)
Full port
Linear
4
(4.6)
6.3
(7.3)
10
(11.6)
16
(18.5)
25
(29)
36
(42)
63
(73)
70
(81)
90
(104)
245
(283)
300
(347)
516
(596)
622
(719)
890
(1028)
Reduction 1
Equal percentage
2.5
(2.9)
4
(4.6)
6.3
(7.3)
10
(11.6)
16
(18.5)
25
(29)
36
(42)
50
(58)
63
(73)
219
(253)
255
(295)
457
(528)
551
(637)
Reduction 1
Linear
2.5
(2.9)
4
(4.6)
6.3
(7.3)
10
(11.6)
16
(18.5)
25
(29)
36
(42)
63
(73)
63
(73)
219
(253)
255
(295)
457
(528)
516
(596)
622
(719)
Reduction 2
Equal percentage
and Linear
1.6
(1.8)
2.5
(2.9)
4
(4.6)
6.3
(7.3)
10
(11.6)
16
(18.5)
25
(29)
36
(42)
50
(58)
115
(133)
200
(231)
350
(405)
457
(528)
Reduction 2
Linear
1.6
(1.8)
2.5
(2.9)
4
(4.6)
6.3
(7.3)
10
(11.6)
16
(18.5)
25
(29)
36
(42)
50
(58)
115
(133)
200
(231)
350
(405)
457
(528)
Reduction 3
Equal percentage
and Linear
1.0
(1.2)*
1.6
(1.8)
2.5
(2.9)
4
(4.6)
6.3
(7.3)
10
(11.6)
16
(18.5)
25
(29)
36
(42)
75 (87)
152
(176)
265
(306)
350
(405)
457
(528)
Reduction 4
Equal percentage
and Linear
0.5
(0.6)*
1.0
(1.2)*
1.6
(1.8)
4
(4.6)
6.3
(7.3)
16
(18.5)
16
(18.5)
265
(306)
457
(528)
Reduction 5
Equal percentage
and Linear
0.2
(0.2)*
0.5
(0.6)*
1.0
(1.2)*
4
(4.6)
175
(203)
350
(405)
Reduction 6
Equal percentage
and Linear
0.1
(0.1)*
0.2
(0.2)*
0.5
(0.6)*
100
(116)
265
(306)
Reduction 7
Equal percentage
and Linear
0.1
(0.1)*
0.2
(0.2)*
175
(203)
Reduction 8
Equal percentage
and Linear
0.1
(0.1)*
100
(116)
TI-S24-59 CH Issue 4
Page 5 of 9
Balanced and Multi-stage Trim Options for Spira-trol
TM
Two-port Control Valves
* Only available in Anti-cavitation
4.1.64
