User Guide

6 Copyright 2007 TAC All Rights Reserved. F-27086-7
Port Codes for TAC DuraDrive Ball Valve Assemblies
Table-1 2-Way TAC Ball Valve Assemblies—Sizes, Port
Codes, and Cv’s.
Size
2-Way
Port Code C
v
a
a
(where ΔP is measured in psi) k
vs
= C
v
/ 1.156
(where ΔP is measured in bar; 1 bar = 100 kPa)
k
vs
a
1"
21 4.4 3.8
22 9.0 7.8
23 15.3 13.2
24 26.1 22.6
25 28.4
b
b
Denotes a full port valve, without the characterized insert.
24.6
26 43.9
b
38.0
27 54.2
b
46.9
1-1/4"
41 4.4 3.8
42 8.3 7.2
43 14.9 12.9
44 36.5 31.6
45 41.1
b
35.6
46 102.3
b
88.5
1-1/2"
51 22.8 19.7
52 41.3 35.7
53 73.9
b
63.9
54 171.7
b
148.5
2"
61 41.7 36.1
63 71.1 61.5
65 108
b
93.4
66 210 181.7
67 266
b
230.1
2-1/2"
71 45 38.9
72 55 47.6
73 72.3 62.5
74 101 87.4
75 162 140.1
76 202
b
174.7
3"
82 63 54.5
85 145
b
125.4
C
v
gpm
PΔ
-----------=
k
vs
m
3
h⁄
PΔ
---------------=
Table-2 3-Way TAC Ball Valve Assemblies—Sizes, Port
Codes, and Cv’s
Size
3-Way
Port Code A Port C
v
a
b
a
(where ΔP is measured in psi) k
vs
= C
v
/ 1.156
(where ΔP is measured in bar; 1 bar = 100 kPa)
b
B port Cv is 80% of A port Cv.
k
vs
a
1"
21 0.40 0.35
22 0.65 0.56
23 1.3 1.1
24 2.3 2.0
25 3.5 3.0
26 4.5 3.9
27 8.6 7.4
28 10
c
c
Denotes a full port valve, without the characterized insert.
8.6
29 14.9 12.9
30 22.3
c
19.3
31 30.8
c
26.6
1-1/4"
41 4.1 3.5
43 8.7 7.5
44 12.7 11.0
45 19.4
c
16.8
46 34.1
c
29.5
1-1/2"
51 4 3.5
52 8.3 7.2
53 13.4 11.6
54 23.5 20.3
55 32
c
27.7
56 61.1
c
52.8
2"
61 23.9 20.7
62 38.2 33.0
63 56.7
c
49.0
64 108.5
c
93.8
C
v
gpm
PΔ
-----------=
k
vs
m
3
h⁄
PΔ
---------------=