Description
- Sealing element (D) combined with a centering ring (R) and an inner ring (I) which improves radial strength and protects the sealing element from erosion and inward buckling
- Commonly used with standard Raised Face, Full Face type flanges and worn RTJ flange replacement gaskets
- Inner rings are recommended for all spiral wound gaskets but are mandatory (ASME B16 20-2007) for all PTFE filled gaskets, NPS (Nominal Pipe Size) 24” and larger Class 900. NPS 12”, larger Class 1500 and NPS 4” and larger Class 2500
Additional information
| Nominal Pipe Size | 1/2”, 3/4”, 1”, 1-1/4”, 1-1/2”, 2”, 2-1/2”, 3”, 4”, 5”, 6”, 8”, 10”, 12”, 14”, 16”, 18”, 20”, 24”, 30”, 36” |
|---|---|
| Flange Rating | 150, 175, 300, 400, 600, 900, 1500, 2500, 3-4-600, 9-1500 |