Control Valve Coe ffi cients (Cv)
open 1122 1123 1124 1126 70°
open 1146 1156 70°
open 1004 1014 wide
Valve Cœfficient,
1813 @#10
open 1008A wide
open 1807 wide
( ( 1136 70° open
( (
( (
( (
( (
( (
C V
pos.
-03 ( ¼ ") -02 ( 3⁄8 ") -02-A ( 3⁄8 ") -02-B ( 3⁄8 ") -02-C ( 3⁄8 ") -02-D ( 3⁄8 ") -01 ( ½ ") -0 ( ¾ ")
0.030
2.0
0.078
0.17
0.32
0.52
2.0
3.57
1.32
7.9
5.9
5.06
-1
(1")
12.5
15.6
9.27
-2 (1 ¼ ") -3 (1 ½ ")
19.7
26
13.5
28
(B) 77
33
17.2
-4 (2")
49
(B) 77 / (C) 122
66
41
-5 (2 ½ ")
71
(C) 122
105
62
-6 (3")
111
(C) 122 / (D) 355
173
N/A
221
108
-7
(4")
191
(D) 355
348
221
328
N/A
-8 (6")
433
(D) 355 / (E) 585
1050
328
802
-9 (8")
(F) 1679
1516
802
1284
-10 (10")
(F) 1679 / (G) 4272
2454
1284
2029
-12 (12")
(G) 4272
3715
2029
3142
-14 (14")
(G) 4272
4793
3142
4471
-16 (16")
6215
5825
-18 (18")
7338
-20 (20")
9265
-22 (22")
11420
-24 (24")
13759
(obsolete) (obsolete) (obsolete)* (obsolete)*
-30 (30")
18919
-36 (36")
28665
-42 (42")
40360
*R948-1156-24
18800
*R948-1156-30
31010
1000-4 page 2
Made with FlippingBook flipbook maker