Seal BT-FN Features (HBT-FN)
- Single pusher-type seal
- Unbalanced
- Conical spring
- Dependent on direction of rotation
Seal BT-FN Material
- Seal face:
Steatite (X), Aluminium oxide (V), Silicon carbide (Q1, Q6), Tungsten carbide (U1) - Seat:
Carbon graphite antimony impregnated (A), Carbon graphite resin impregnated (B), Silicon carbide (Q1, Q6), Tungsten carbide (U1) - Elastomers:
NBR (P), EPDM (E), FKM (V), FFKM (K) - Metal parts: CrNi steel 1.4301 (F), CrNiMo steel 1.4401 (G)
Seal BT-FN Advantages (HBT-FN)
- The BT-FN combines a spring loaded ceramic seal face and the traditional pusher mechanical seals. The competitive price and the wide range of applications have made the BT-FN seal a success. The seal is produced with punched metal parts that allow an economical design.
- BT-FN mechanical seals are also the ideal solution for light chemicals media applications.
- To ensure the best reliable performance, we recommend a material combination of hard material sliding faces and proper elastomer O-Rings.
Seal BT-FN Recommended applications
Building services industry
Household appliances
Centrifugal pumps
Clean water pumps
Pumps for domestic applications and gardening
Seat PFL
Seat PFL-1
Dimension Table
d1 | d3 | d4 | d6 | d7 | l1 | l3 | l4 | l5 | l6 |
---|---|---|---|---|---|---|---|---|---|
10 | 19.5 | 22 | 14.0 | 18.1 | 20.5 | 15 | 5.5 | 1.2 | 3 |
11 | 22.5 | 25 | 16.5 | 20.6 | 23.5 | 18 | 5.5 | 1.2 | 3 |
12 | 22.5 | 25 | 16.5 | 20.6 | 23.5 | 18 | 5.5 | 1.2 | 3 |
13 | 24.5 | 28 | 19.0 | 23.1 | 28.0 | 22 | 6.0 | 1.2 | 3 |
14 | 24.5 | 28 | 19.0 | 23.1 | 28.0 | 22 | 6.0 | 1.2 | 3 |
15 | 29.0 | 32 | 21.0 | 26.9 | 29.0 | 22 | 7.0 | 1.5 | 4 |
16 | 29.0 | 32 | 21.0 | 26.9 | 30.0 | 23 | 7.0 | 1.5 | 4 |
17 | 29.0 | 32 | 21.0 | 26.9 | 30.0 | 23 | 7.0 | 1.5 | 4 |
18 | 32.5 | 36 | 25.0 | 30.9 | 32.0 | 24 | 8.0 | 1.5 | 4 |
19 | 32.5 | 36 | 25.0 | 30.9 | 33.0 | 25 | 8.0 | 1.5 | 4 |
20 | 32.5 | 36 | 25.0 | 30.9 | 33.0 | 25 | 8.0 | 1.5 | 4 |
22 | 37.5 | 42 | 30.0 | 35.4 | 33.0 | 25 | 8.0 | 2.0 | 4 |
24 | 37.5 | 42 | 30.0 | 35.4 | 35.0 | 27 | 8.0 | 2.0 | 4 |
25 | 40.0 | 45 | 33.0 | 38.2 | 35.5 | 27 | 8.5 | 2.0 | 4 |
28 | 46.0 | 51 | 38.0 | 43.3 | 38.0 | 29 | 9.0 | 2.0 | 4 |
30 | 46.0 | 51 | 38.0 | 43.3 | 39.0 | 30 | 9.0 | 2.0 | 4 |
32 | 46.0 | 51 | 38.0 | 43.3 | 39.0 | 30 | 9.0 | 2.0 | 4 |
35 | 50.0 | 55 | 45.0 | 53.5 | 50.5 | 39 | 11.5 | 2.0 | 6 |
38 | 58.0 | 68 | 52.0 | 60.5 | 50.5 | 39 | 11.5 | 2.0 | 6 |
40 | 58.0 | 68 | 52.0 | 60.5 | 50.5 | 39 | 11.5 | 2.0 | 6 |