The dimensions of the 20BUV seal are shown above. Seals BUV in other sizes are shown in the configurator and catalogue card, available at the top of the page.
General characteristics
Double seal, cartridge design, direction of rotation-dependent, multi-spring. BPD seal requires application of buffer or barrier liquid installation. The seal acc. to EN ISO 21049 (API 682): type A, category 2 or 3, arrangement 2 or 3, configuration 2CW-CW or 3CW-FB.
Range of sizes available
- Shaft diameter: d = 20 ... 110 mm
Operating parameters
- Pressure: < 4.2 MPa
- Temperature: < 180 °C
- Velocity: < 20 m/s
Applications
The BUV is a double mechanical seal used for media contaminated with particulate solids, especially, e.g., crude oil and polluted hydrocarbons.
BUV seal requires auxiliary installations acc. to API 682 (EN ISO 21049), Plan: 11/52, 11/53A, 12/52, 12/53A, 13/52, 13/53A.
Available options
ATEX versions are available.
Materials
- Rotating ring: Q, U
- Stationary ring : A, B, Q, U
- Secondary flexible seals: E, K, M, V
- Spring (springs): M
- Other metal parts: G, M
- Rotating ring (atmosphere side): Q, U
- Stationary ring (atm. side): A, B, Q, U
- Secondary flexible seals (atm. side): E, K, M, V
