DeZURIK
BHP High Performance Butterfly Valves
D10503
Page 18
November 2015
Torque Specification
(Continued)
Table B: Class 300 Valves—Gland Nut Torques and
Spring Washer Quantities for Live-Loaded Packing
Valve Size
Gland Nut Torque
Spring Washers (17-7PH Stainless Steel)
Quantity
Each
Gland
Stud
Dimensions (Ref)
in [mm]
in
mm
in lbs
Nm
Outside
Diameter
Inside
Diameter
Material
Thickness
Overall
Height
2
50
13±0.5
1.4±0.05
9
0.551
[14.00]
0.283
[7.19]
0.014
[0.35]
0.032
[0.81]
2.5
65
14±0.5
1.5 ±0.05
10
3
75
16±1
1.8±0.11
6
0.551
[14.00]
0.283
[7.19]
0.020
[0.50]
0.035
[0.89]
4
100
28±1
3.1±0.11
8
5
125
40±1
4.5±0.11
7
0.630
[16.00]
0.323
[8.20]
0.024
[0.61]
0.041
[1.04]
6
150
49±2
5.5±0.22
8
8
200
59±2
6.6±0.22
4
0.630
[16.00]
0.323
[8.20]
0.035
[0.89]
0.049
[1.24]
10
250
110±3
12.4±0.33
8
0.984
[25.00]
0.480
[12.19]
0.035
[0.89]
0.063
[1.60]
12
300
126±3
14.2±0.33
14
350
152±3
17.1±0.33
7
1.100
[27.94]
0.480
[12.19]
0.039
[0.99]
0.077
[1.96]
16
400
163±3
18.4±0.33
7
1.240
[31.50]
0.480
[12.19]
0.039
[0.99]
0.083
[2.11]
18
450
181±3
20.4±0.33
8
20
500
274±4
30.9±0.45
7
1.340
[34.04]
0.563
[14.30]
0.049
[1.24]
0.095
[2.41]
24
600
382±4
43.1±0.45
7
1.240
[31.50]
0.642
[16.31]
0.049
[1.24]
0.085
[2.16]