Technical Specifications
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Assembly Torque Requirements
Valve Size
ANSI Class
Bolting Requirements
Torque Requirements
Minimum Maximum Pre-Load
inch mm Qty. Size (inch) Lbs.Ft N.m Lbs.Ft N.m Lbs.Ft N.m
.75 & 1
20 &
25
150 & 300 4 1/2"-13NC-2A 25 34 66 89 5 7
600 4 1/2"-13NC-2A 25 34 66 89 5 7
900 & 1500 4 1"-8NC-2A 125 169 560 759 45 61
2500 4 1"-8NC-2A 125 169 560 759 45 61
1.5 & 2
40 &
50
150 & 300 8 1/2"-13NC-2A 25 34 66 89 5 7
600 8 1/2"-13NC-2A 25 34 66 89 5 7
900 & 1500 8 7/8"-9NC-2A 100 136 300 407 30 41
1.5 40 2500 8 7/8"-9NC-2A 100 136 300 407 30 41
2 50 2500 8 1-1/8"-7NC-2A 160 217 640 868 60 81
3
80
150 & 300 6 5/8"-11NC-2A 45 61 132 179 10 14
600 8 3/4"-10NC-2A 80 108 230 312 20 27
900 & 1500 8 1-1/8"-8NC-2A 225 305 830 1125 75 102
4 100
150 & 300 8 5/8"-11NC-2A 45 61 132 179 10 14
600 8 1"-8NC-2A 125 169 560 759 45 61
900 & 1500 8 1-1/2"-8NC-2A 400 542 2100 2847 115 156
6 150
150 & 300 12 5/8"-11NC-2A 45 61 132 179 10 14
600 12 1"-8NC-2A 125 169 560 759 45 61
8 200 150 - 600 12 1-1/4"-8NC-2A 235 319 1200 1627 100 136
Notes: 1. Do not exceed Maximum Torque values listed.
2. Tighten in increments until required torque levels are reached.
3. Reject assembly if metal-to-metal contact is not achieved after reaching Maximum Torque.
4. Torque requirements shown are for standard B7 studs and 2H nuts.
Bellows Bonnet Assembly Torque Requirements
Bolting Requirements
Torque Requirements
Minimum Maximum Increments Pre-Load
Qty. Size (inch) Lbs.Ft N.m Lbs.Ft N.m Lbs.Ft N.m Lbs.Ft N.m
8 1/2"-13NC-2A 20 27 30 41 5 7 5 7
8 5/8"-11NC-2A 25 34 55 75 10 14 5 7
Notes: 1. Do not exceed Maximum Torque values listed.
2. Tighten in increments noted until required torque levels are reached.
3. Torque requirements shown are for standard B7 studs and 2H nuts.
Valve
Size
mm in.
25
&
40
1
&
1- 1/2
900
31
230 250
34
Min.
daN.m
Carbon Steel Bolting
Max.
Ft. Lbs.
daN.m
Ft. Lbs.
ANSI Class
Stud (9)
20 to 50 3/4 to 2
150 - 300
600
4,5
33 37
5
1/2” -13 NC - 2A
200 8 150 - 300
26
192 207
28
1- 1/4” - 8 NC - 2A
1
2
3
4
5
6
7
8
1
2
3
4
1
2
3
4
10
8
5
6
7
11
12
9
1
2
3
5
6
4
Size Qty
8
12
1500
35
260 295
40
1” - 8 NC - 2A 4
2500
40
295 370
50
5,5
40 48
6,5
80 3
150
300
600
8
60 63
8,5
5/8” -11 NC - 2A 6
19
140 148
20
3/4” -10 NC - 2A 8
100 4
150 - 300
600
8,5
63 70
9,5
5/8” -11 NC - 2A 8
28
207 220
30
1” -8 NC - 2A 8
150 6
150 - 300
600
8,5
63 66
9
5/8” -11 NC - 2A 12
28
207 221
30
1” -8 NC - 2A 12
8
60 63
8,5
5/8” -11 NC - 2A 6
23
170 184
25
Min.
daN.m
Stainless Steel Bolting
Max.
Ft. Lbs.
daN.m
Ft. Lbs.
3,5
26 30
4
26
192 207
28
4,5
33 37
5
23 *
170 * 184 *
25 *
7
52 59
8
28
207 221
30
9
66 74
10
Req’d. Torque
28
207 221
30
*
Only on 21000 threaded trim valves. For quick-change trim valves, use following torques.........
Figure 11 - Bolting Torques and Tightening Sequence