The dimensions of the 16A4/A0 seal are shown above. Seals A4 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. Bellows
- 5. Spring
- 6. Front thrust ring
- 7. Rear thrust ring
General characteristics
Single seal, balanced. Installation compliant with L1k acc. to EN 12756 (DIN 24960) standard. Direction of rotation-independent. Elastomer bellows protected against twisting. Central spring.
Range of sizes available
- Shaft diameter: d = 16 ... 80 mm
Operating parameters
- Pressure: < 2.0 MPa
- Temperature: < 150 °C
- Velocity: < 10 m/s (3000 rpm)
Applications
A4 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 containing small amounts of abrasives.
The A41 version is available, sized to direct application in place of A1 seal (L3 dimension for particular size is the same as L3 for the type A1).
Available options
Available with materials compliant with FDA and EC 1935/2004.
Materials
- Rotating ring: A, B, Q
- Stationary ring : Q, S, U2, V
- Secondary flexible seals: E, P, V
- Spring (springs): G
- Other metal parts: G
