Gasket - Spiral Wound, for ANSI Class 300, B16.47, Series A (in)
- 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".
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 | 27.00 | 29.00 | 32.88 |
28 | 27.75 | 29.00 | 31.00 | 35.38 |
30 | 29.75 | 31.25 | 33.25 | 37.50 |
32 | 31.75 | 33.50 | 35.50 | 39.63 |
34 | 33.75 | 35.50 | 37.50 | 41.63 |
36 | 35.75 | 37.63 | 39.63 | 44.00 |
38 | 37.50 | 38.50 | 40.00 | 41.50 |
40 | 39.50 | 40.25 | 42.13 | 43.88 |
42 | 41.50 | 42.25 | 44.13 | 45.88 |
44 | 43.50 | 44.50 | 46.50 | 48.00 |
46 | 45.38 | 46.38 | 48.38 | 50.13 |
48 | 47.63 | 48.63 | 50.63 | 52.13 |
50 | 49.00 | 51.00 | 53.00 | 54.25 |
52 | 52.00 | 53.00 | 55.00 | 56.25 |
54 | 53.25 | 55.25 | 57.25 | 58.75 |
56 | 55.25 | 57.25 | 59.25 | 60.75 |
58 | 57.00 | 59.50 | 61.50 | 62.75 |
60 | 60.00 | 61.50 | 63.50 | 64.75 |