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Raised Face Flange Gasket Dimensions

Gasket O.D
Nominal Pipe Size,NPS Gasket I.D. Class 300 Class 400 Class 600 Class 900
1/2 21 54 54 54 64
3/4 27 67 67 67 70
1 33 73 73 73 79
11/4 42 83 83 83 89
11/2 48 95 95 95 98
2 60 111 111 111 143
21/2 73 130 130 130 165
3 89 149 149 149 168
3 1/2 102 165 . 162 162 …
4 114 181 178 194 206
5 141 216 213 241 248
6 168 251 248 267 289
8 219 308 305 321 359
10 273 362 359 400 435
12 324 422 419 457 498
14 356 486 483 492 521
16 406 540 537 565 575
18 457 597 594 613 638
20 508 654 648 683 699
24 610 775 768 791 838

GENERAL NOTE: Dimensions are in millimeters.

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