Spiral Wound Gasket Torque Values

Spiral Wound Gasket Torque Values

Target Torque (Nm) ASME B16.5 flanges, SWG Gaskets
NB/Class 150 300 600
0.5" 64 64 64
0.75" 90 112 113
1" 100 154 157
1.25" 102 128 133
1.5" 105 257 265
2" 191 147 152
2.5" 207 194 203
3" 207* 284 298
4" 208 343 571
5" 354 357 851
6" 364 355 783
8" 363* 581 1226
10" 579 771 1399
12" 578* 1150 1491
14" 869 1040 1678
16" 858* 1597 2402
18" 1257* 1747 3133
20" 1238 1727 2930
24" 1761 3036 4160

* These flanges have limited bolt load, flange allignment is critical.

The above calculations are based on the use of a ASTM A193 Grade B7/B16 bolt with a coefficient of friction of 0.14. The flanged assembly must be fitted with a Klinger Maxiflex Spiral Wound, Style CRIR Gasket. Please forward any queries to: ryan.hough@klinger.co.za

spiral wound gasket torque values