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Reduced bore
Size
Reduced bore
Full bore
For conversion:
1⁄4"
3
/
8
" 1⁄2" 3⁄4" 1" 11⁄4" 11⁄2" 2" 21⁄2"
Size
A
A1
B
C
D
E
Weight
3
3
6.8 6
10 27
6.8 17 36 58
Cv (UK) = Kv x 0.963
49
70 103 168
89 153 205
-
Cv (US) = Kv x 1.156
1⁄4"
60
3
/
8
"
60
1⁄2"
60
3⁄4"
66
1"
80
11⁄4"
96
11⁄2"
102
2"
118
21⁄2"
146
58
58
49
56
78
91
98
112
145
130
66
26
11
0.92
130
66
26
11
130
66
26
11
0.92
130
69
29
14
0.95
162
100
33
21
1.65
162
104
37
25
2.30
185
112
41
31
3.05
185
120
48
38
4.60
250
140
57
51
7.95
B
ØE
B
C
D
E
Weight
0.92
C
D
Size
1⁄4"
3
/
8
" 1⁄2" 3⁄4" 1" 11⁄4" 11⁄2" 2" 21⁄2"
Reduced bore 2
2
2 3.5 13 21
30 40
45
Full bore
2
2
3.5 13 21 30
40 45
-
The indicated torque values are for valves frequently operated,
that are submitted to a maximum differential pressure of 62 bar.
Valves that are subject to a long static period, may require greater
break-out torque.
For full details see the Installation and Maintenance Instructions
supplied with the product.
Example: 1 off Spirax Sarco 1⁄2" screwed NPT M10F2RB ISO ball
valve.
The spare parts available are shown in solid outline. Parts drawn
in broken line are not supplied as spares.
Available spares
Seat, stem seal set and body gaskets
How to order spares
5, 6, 16, 17
A1: SW
A: Scrd and BW
Full bore
Size
A
A1
Always order spares by using the description given in the column
headed 'Available spares' and state the size and type of ball valve.
Example: 1 - Seat, stem seal set and body gasket set for a
Spirax Sarco 1⁄2" M10F2FB ISO ball valve.
1⁄4"
60
3
/
8
"
60
1⁄2"
66
3⁄4"
80
1"
96
11⁄4"
102
11⁄2"
118
2"
146
58
58
61
78
95
102
118
145
130
66
130
66
130
69
162
100
162
104
185
112
185
120
250
140
26
11
26
11
29
14
33
21
37
25
41
31
48
38
57
51
0.92
0.92
0.95
1.65
2.30
3.05
4.60
8.75
6
16
17
5
5
17
M10F ISO Ball Valve DN1⁄4" to DN21⁄2"
TI-P133-11 ST Issue 7
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