Flowserve Nordstrom Dynamic Balance Plug Valve and Double DB Plug Valve - Manual (Page 31)

Flow Control
Nordstrom Valves
FCD NVENIM2005-01 Dynamic Balance ® Plug Valve and Double DB ® Double Isolation Plug Valve 31
Plug Adjusting Screw Torque Values
The torque values listed in the following table are based on the
torque used during assembly of Dynamic Balance Plug Valves at
the factory. Estimations of accurate torque values for the countless
varieties of field site conditions, valve conditions, and sealant used
are not feasible. Judgment and experience must be exercised when
using this information for specific valves at your site.
Table 4 – Plug Adjusting Screw Torque Values
Valve
Size
Basic Figure Numbers Initial ft-lb
Final
ft-lb
1/2 - 1
2245, 3045, 20545 65 – 75 5 – 8
6804, 6814, 6824 65 – 75 5 – 7
11/2 & 2
1945, 2045, 2245, 3045, 76205,
76305, 5345, 5545, 5645, 5845,
6345, 6545, 6645, 6845
105 – 125 5 – 8
20545, 76505, 5945, 6945 105 – 125 5 – 10
6804, 6814 150 – 175 10 – 17
6824, 6405, 6415 150 – 175 10 – 16
21/2 & 3
1945, 2045, 2245, 2345, 3045,
76205, 76305, 5345, 5545, 5645,
5745, 5845, 6345, 6545, 6645,
6745, 6845
150 – 175 9 – 16
20545, 76505, 5945, 6945 150 – 175 8 – 13
6405, 6415, 5205, 5215 150 – 175 22 – 36
5225 150 – 175 20 – 33
4
1945, 2045, 2245, 2345, 3045,
76205, 76305, 5345, 5545, 5645,
5745, 5845, 6345, 6545, 6645,
6745, 6845
150 – 175 12 – 20
20545, 76505, 5945, 6945, 32049 150 – 175 11 – 19
6405, 6415 150 – 175 22 – 36
5225 150 – 175 20 – 33
6
1945, 1949, 2045, 2049 40 4
2245, 2249, 4745, 4749, 5349,
5549, 5649, 6349, 6549, 6649
42 4
2349, 5749, 6749 58 6
3049, 6049, 5849, 6849 75 8
4245, 4249 70 7
4445, 4449 30 3
20549, 5949, 6949 65 6
8
1945, 1949, 2045, 2049 57 6
2249 145 15
2349, 5749, 6749 142 14
3049, 4749 75 8
4245, 4249, 4445, 4449 70 7
6049 132 13
Table 4 – Plug Adjusting Screw Torque Values (continued)
Valve
Size
Basic Figure Numbers Initial ft-lb
Final
ft-lb
10
1949, 2045, 2049 147 15
2249 190 19
2349 195 20
3049, 6049, 5849, 6849 630 63
4249 220 22
4449, 4749 210 21
20549 450 45
12
1949 330 33
2249 710 71
2349 730 73
4249 260 26
4449, 4749 300 30
6049, 9349, 5849, 6849, 5949,
6949
630 63
14
4149, 4249 430 43
4749 610 61
6049 770 77
16
4149, 4249, 4449, 4749 710 71
4949 910 91
6049 770 77
9349 1010 101
18
4149 740 74
4249, 4449 900 90
4749 930 93
4949 910 91
6049 1090 109
20
4149 800 80
4249, 4449 850 85
4749 1050 105
4949 1070 107
6049 1090 109
24
4149 1170 117
4249, 4449 1210 121
4749 1350 135
4949 1070 107
6049 1090 109
30
4149 1770 177
4249, 4449, 4749 1890 189