

The dimensions of the 18US/A0 seal are shown above. Seals US in other sizes are shown in the configurator and catalogue card, available at the top of the page.
Legend
- 1. Stationary ring
- 2. O-ring
- 3. Rotating ring
- 4. Rotating ring housing
- 5. Sinusoidal spring
- 6. O-ring
- 7. O-ring
- 8. Housing
- 9. Set screw
General characteristics
Single seal, balanced, independent from the direction of rotation, sinusoidal spring, spring separated from the medium.
Range of sizes available
- Shaft diameter: d = 18 ... 100 mm
Operating parameters
- Pressure: < 2.0 MPa
- Temperature: < 200 °C
- Velocity: < 20 m/s (4000 rpm)
Applications
The US is a general purpose mechanical seal with a wide range of applications. It is designed to operate with cold and hot water, oils, fuels, not very aggressive chemicals and other liquids contaminated with solid particles. It is recommended for the majority of mediums in the food industry.
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 : A, B, Q, U, U1, U2
- Secondary flexible seals: E, K, M, P, V
- Spring (springs): G, M
- Other metal parts: G, M