Face Seal
Face Seals
Internal and external face seals energized with a V (cantilever) spring are suitable for static and slow dynamic applications. Spring pre-load is light to medium which keeps friction lower. Some seal deflection can be tolerated without permanent deformation as the V spring allows the seal to cope with minor misalignment.
The heel length of this type of seal can be increased for high pressure applications and these can also be combined with back up rings as shown on page 9 for higher pressure applications.
- Good general purpose face seal
- Low seal friction
- Available up to 1850mm diameter
- Any groove depth and width can be accommodated with bespoke profiles
- Pressure up to 50 MPa/500 bar (this can be increased with backup ring to 2000 bar)
- Operating temperature -80°C to + 260°C
Nominal Diameter | Groove Depth | Groove Width Standard | Groove Width Extended | Max Gap (Radial Clearance) | RMax |
10–20mm | 2.26/2.31 | 3.60 | 4.60 | 0.12 | 0.4 |
20–40mm | 3.07/3.12 | 4.80 | 6.00 | 0.14 | 0.4 |
40–120mm | 4.67/4.73 | 7.10 | 8.50 | 0.16 | 0.6 |
120–500mm | 6.07/6.13 | 9.50 | 12.10 | 0.20 | 0.6 |
500–1200mm | 9.35/9.40 | 13.50 | 15.00 | 0.22 | 0.8 |
AFCI/AFCE
Internal and external face seals energized with a tape wound helical spring suitable for static applications only. Spring pre-load is high and these type of seals require precision in the two mating faces. The heel length of this type of seal can be increased to accommodate higher pressures and this seal profile type can also be combined with back up rings as shown on page 9 for even higher pressure applications
- Primary choice for high load/tight sealing
- High spring preload
- Available up to 1850mm diameter
- Any groove depth and width can be accommodated with bespoke profiles
- Pressure up to 50 MPa/500 bar (this can be increased with back up rings to 2000 bar)
- Operating temperature -80°C to + 260°C
Nominal Diameter | Groove Depth | Groove Width Standard | Groove Width Extended | Max Gap (Radial Clearance) | RMax |
10–20mm | 2.26/2.31 | 3.60 | 4.60 | 0.12 | 0.4 |
20–40mm | 3.07/3.12 | 4.80 | 6.00 | 0.14 | 0.4 |
40–120mm | 4.67/4.73 | 7.10 | 8.50 | 0.16 | 0.6 |
120–500mm | 6.07/6.13 | 9.50 | 12.10 | 0.20 | 0.6 |
500–1200mm | 9.35/9.40 | 13.50 | 15.00 | 0.22 | 0.8 |
High performance materials With an unrivalled range of elastomer materials available, PPE has an elastomer for every application, with performance characteristics that meet high temperature, high pressure and aggressive chemical applications.