Gasket - Spiral Wound, for ANSI Class 150, B16.47, Series B (in) | ||||
|---|---|---|---|---|
| Pipe
Size (NPS) | Inner
Ring Inside Diameter A | Sealing
Element Inside Diameter B | Sealing
Element Outside Diameter C | Outer
Ring Outside Diameter D |
| 26 | 25.75 | 26.50 | 27.50 | 28.56 |
| 28 | 27.75 | 28.50 | 29.50 | 30.56 |
| 30 | 29.75 | 30.50 | 31.50 | 32.56 |
| 32 | 31.75 | 32.50 | 33.50 | 34.69 |
| 34 | 33.75 | 34.50 | 35.75 | 36.81 |
| 36 | 35.75 | 36.50 | 37.75 | 38.88 |
| 38 | 37.75 | 38.37 | 39.75 | 41.13 |
| 40 | 39.75 | 40.25 | 41.88 | 43.13 |
| 42 | 41.75 | 42.50 | 43.88 | 45.13 |
| 44 | 43.75 | 44.25 | 45.88 | 47.13 |
| 46 | 45.75 | 46.50 | 48.19 | 49.44 |
| 48 | 47.75 | 48.50 | 50.00 | 51.44 |
| 50 | 49.75 | 50.50 | 52.19 | 53.44 |
| 52 | 51.75 | 52.50 | 54.19 | 55.44 |
| 54 | 53.75 | 54.50 | 56.00 | 57.63 |
| 56 | 56.00 | 56.88 | 58.18 | 59.63 |
| 58 | 58.19 | 59.07 | 60.19 | 62.19 |
| 60 | 60.44 | 61.31 | 62.44 | 64.19 |
Dimensions to ASME B16.20 - Metallic Gaskets for Pipe Flanges: Ring-Joint, Spiral-Wound, and Jacketed- Inner rings are recommended for all graphite filled gaskets, required for all PTFE filled gaskets.
- The gasket outside diameter tolerance for NPS 26" through NPS 60" is ±0.06".
- The gasket inside diameter tolerance for NPS 26" through NPS 34" is ±0.03"; for NPS 36" through NPS 60" is ±0.05".
- The centering ring outside diameter tolerance is ±0.03".
