The dimensions of the 24USP seal are shown above. Seals USP in other sizes are shown in the configurator and catalogue card, available at the top of the page.
Legend
- 1. Stationary ring
- 2. Rotating ring
- 3. Rotating ring
- 4. Sleeve
- 5. Cover
- 6. Clamping ring
- 7. Expanding ring
- 8. Pin
- 9. Distance plate
- 10. Socket head screw
- 11. Set screw
- 12. Thrust ring
- 13. Flat gasket
- 14. Spring
- 15. O-ring
- 16. O-ring
- 17. O-ring
- 18. O-ring
General characteristics
Double seal, compact (cartridge) design, balanced, independent from the direction of rotation, multi-spring.
Range of sizes available
- Shaft diameter: d = 24 ... 125 mm
Operating parameters
- Pressure: < 2,0 MPa
- Temperature: < 120 °C
- Velocity: < 12,5 m/s
Applications
The USP is a mechanical seal used for viscid media containing abrasive particles.
The USP seal requires the following liquid installations:
– buffer liquid (API Plan 52 ) or
– barrier liquid (API Plan 53), note: max. pressure of barrier liquid: 1.6 MPa, max. overpressure: 0.6 MPa.
Available options
ATEX versions are available.
Available with materials compliant with FDA and EC 1935/2004.
Materials
- Rotating ring: A, B, Q, U, U1, U2
- Stationary ring : Q, U, U1, U2
- Secondary flexible seals: E, K, M, V
- Spring (springs): M
- Other metal parts: G, M
- Rotating ring (atmosphere side): A, B, Q, U, U1, U2
- Stationary ring (atm. side): Q, U, U1, U2
- Secondary flexible seals (atm. side): E, K, M, V
