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Page 4
Appendix A – Stud Torque Values
NOTE:
Torque values in Appendix A are based on a nut factor K= 0.2. Adjustment to the torque should be considered if the installation
utilizes bolting/lubrication with a nut factor other than K= 0.2. The following expression may be used for correction:
Equation 1: T
2
= (T
1
/K
1
)*K
2
where T
1
and K
1
are the Fike default torque and nut factor values.
NOTE:
Torque values in Tables 1 to 3 are recommended values, but may be increased up to 50% to achieve an increased gasket seal.
If the torque values are unsatisfactory, consult factory.
Nominal
Pipe Size
(in)
Torque by Flange Rating
(ft-lb [N-m])
150 ANSI
300 ANSI
600 ANSI
900 ANSI
1500 ANSI
2500 ANSI
.75
30 [41]
60 [81]
60 [81]
N/A
N/A
N/A
1”
30 [41]
60 [81]
60 [81]
160 [217]
160 [217]
160 [217]
1.5
30 [41]
100 [136]
100 [136]
245 [332]
245 [332]
355 [481]
2
60 [81]
60 [81]
60 [81]
160 [217]
160 [217]
245 [332]
3
60 [81]
100 [136]
100 [136]
160 [217]
355 [481]
500 [678]
4
60 [81]
100 [136]
160 [217]
355 [481]
500 [678]
800 [1,085]
6
100 [136]
100 [136]
245 [332]
355 [481]
680 [922]
2,200 [2,983]
8
100 [136]
160 [217]
355 [481]
680 [922]
1,100 [1,491]
2,200 [2,983]
10
160 [217]
245 [332]
500 [678]
680 [922]
2,000 [2712]
4,400 [5,966]
12
160 [217]
355 [481]
500 [678]
680 [922]
2,200 [2,983]
5,920 [8,026]
14
245 [332]
355 [481]
680 [922]
800 [1,085]
3,180 [4,312]
N/A
16
245 [332]
500 [678]
800 [1085]
1,100 [1,491]
4,400 [5,966]
N/A
18
355 [481]
500 [678]
1100 [1491]
2,000 [2712]
5,920 [8,026]
N/A
20
355 [481]
500 [678]
1100 [1491]
2,200 [2,983]
7,720 [10,467]
N/A
24
500 [678]
800 [1085]
2000 [2712]
4,400 [5,966]
11,651 [15,797]
N/A
Nominal
Pipe Size
(in [mm])
Torque by Flange Rating
(ft-lb [N-m])
PN 6
PN 10
PN 16
ISO PN 20
PN 25
PN 40
ISO PN 50
DIN PN 63/64
DIN PN 100
ISO PN 100/110
.75 [DN20]
23 [31]
28 [37]
28 [37]
32 [44]
45 [61]
45 [61]
60 [82]
N/A
N/A
60 [82]
1” [DN 25]
23 [31]
28 [37]
28 [37]
32 [44]
45 [61]
45 [61]
60 [82]
60 [82]
60 [82]
60 [82]
1.5 [DN 40]
28 [37]
37 [50]
37 [50]
32 [44]
84 [114]
84 [114]
105 [142]
105 [142]
105 [142]
105 [142]
2 [DN 50]
45 [61]
60 [82]
60 [82]
60 [82]
121 [164]
121 [164]
60 [82]
151 [205]
181 [246]
60 [82]
3 [DN 80]
60 [82]
30 [41]
30 [41]
60 [82]
84 [114]
84 [114]
105 [142]
105 [142]
126 [171]
105 [142]
4 [DN 100]
121 [164]
60 [82]
60 [82]
60 [82]
105 [142]
105 [142]
105 [142]
173 [235]
195 [264]
173 [235]
6 [DN 150]
84 [114]
105 [142]
105 [142]
105 [142]
189 [256]
189 [256]
105 [142]
433 [587]
289 [391]
260 [352]
8 [DN 200]
84 [114]
105 [142]
70 [95]
105 [142]
173 [235]
195 [264]
173 [235]
410 [555]
410 [555]
372 [505]
10 [DN 250]
115 [157]
144 [196]
173 [235]
173 [235]
347 [470]
385 [523]
260 [353]
693 [939]
756 [1,025]
520 [705]
12 [DN 300]
144 [196]
144 [196]
173 [235]
173 [235]
336 [455]
373 [505]
373 [505]
650 [881]
768 [1,041]
520 [705]
14 [DN 350]
192 [261]
144 [196]
173 [235]
260 [352]
466 [632]
513 [695]
372 [504]
875 [1,187]
1,094 [1,484]
700 [950]
16 [DN 400]
192 [261]
231 [314]
260 [353]
260 [353]
650 [881]
709 [961]
520 [705]
1,024 [1,388]
N/A
819 [1,110]
18 [DN 450]
249 [337]
239 [323]
268 [364]
373 [505]
624 [846]
680 [922]
520 [705]
N/A
N/A
1,119 [1,517]
20 [DN 500]
249 [337]
298 [405]
373 [506]
372 [504]
624 [846]
737 [999]
520 [705]
N/A
N/A
1,120 [1,518]
24 [DN 600]
378 [512]
425 [576]
520 [705]
520 [705]
907 [1,230]
1,134 [1,537]
819 [1,110]
N/A
N/A
2,016 [2,733]
Nominal Pipe
Size (in [mm])
Torque by Flange Rating
(ft-lb [N-m])
JIS 5
JIS 10
JIS 16
JIS 20
JIS 30
JIS 40
JIS 63
.75 [DN20]
N/A
28 [37]
28 [37]
60 [82]
N/A
N/A
N/A
1” [DN 25]
23 [31]
37 [50]
37 [50]
60 [82]
60 [82]
60 [82]
75 [102]
1.5 [DN 40]
28 [37]
37 [50]
37 [50]
84 [114]
105 [142]
105 [142]
115 [157]
2 [DN 50]
45 [61]
60 [82]
60 [82]
60 [82]
60 [82]
60 [82]
75 [102]
3 [DN 80]
60 [82]
30 [41]
30 [41]
105 [142]
105 [142]
105 [142]
115 [157]
4 [DN 100]
60 [82]
60 [82]
75 [102]
105 [142]
115 [157
115 [157]
173 [235]
6 [DN 150]
84 [114]
105 [142]
77 [104]
115 [157]
126 [171]
157 [214]
289 [391]]
8 [DN 200]
105 [142]
70 [95]
77 [104]
159 [215]
173 [235]
217 [294]
372 [505]
10 [DN 250]
144 [196]
159 [215]
173 [235]
308 [418]
385 [523]
385 [523]
756 [1,025]
12 [DN 300]
144 [196]
119 [161]
130 [176]
298 [404]
373 [505]
447 [607]
709 [961]
14 [DN 350]
212 [287]
159 [215]
217 [294]
465 [631]
465 [631]]
558 [757]
1,021 [1,385]
16 [DN 400]
212 [287]
231 [314]
289 [392]
591 [801]
709 [961]
709 [961]
1,102 [1,495]
18 [DN 450]
273 [370]
239 [323]
298 [404]
567 [769]
N/A
N/A
N/A
20 [DN 500]
273 [370]
298 [404]
372 [504]
567 [769]
N/A
N/A
N/A
24 [DN 600]
378 [512]
394 [534]
472 [641]
756 [1,025]
N/A
N/A
N/A
Table 1 – Stud Torque Values – ASME (SRX, SRL/SRLO, XL/XLO)
Table 2 – Stud Torque Values – EN/ISO/DIN (SRX, SRL/SRLO, XL/XLO)
Table 3 – Stud Torque Values – JIS (SRX, SRL/SRLO, XL/XLO)
