Pusher Seal
Elastomer Seal
Metal Bellows
Standard Cartridge
Split Seal
Gas Lubricated
Engineered Seal
Compressor Seal
Agitator Seal
Marine Seal
Mechanical Seal BT-FN
Type in the H-Brinker HBT-FN
BT-FN Operating range
- Shaft diameter: d1*= 10 … 40 mm (0.39″ … 1.57″)
- Pressure: p1*= 12 (16) bar (174 (232) PSI)
- Temperature: t* = -35 °C… +180 °C (-31 °F … +356 °F)
- Sliding velocity: vg = 15 m/s (49 ft/s)* Dependent on medium, size and material
Description
| Item | Description |
| 1 | Seal face |
| 2 | Stationary seat |
| 3, 3a, 3b | O-Ring |
| 4 | Spring |
| 5 | Collar |
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 |
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