Features mechanical seal h12n
- For stepped shafts
- Single seal
- Balanced
- Dependent of direction of rotation
- Torque transmission via conical spring
Advantages mechanical seal h12n
- High flexibility due to extended selection of materials
- Insensitive to low solids contents
- Short Installation length possible (G16)
Economical balanced seal - Seat cooling for hot water applications available (G115)
- No damage of the shaft by set screws
Operating range mechanical seal h12n
- Shaft diameter:
d1 = 10 … 80 mm (0.4″ … 3.125″) - Pressure: p1 = 25 bar (363 PSI)
- Temperature:
t = -50 °C … +220 °C (-58 °F … +430 °F) - Sliding velocity: vg = 15 m/s (50 ft/s)
- Axial movement: ±1.0 mm
Materials mechanical seal h12n
- Seal face: Carbon graphite antimony impregnated (A)
- Seat G9: Silicon carbide (Q1), Special cast CrMo steel (S)
| Item | Part no. to DIN 24250 | Description |
| 1.1 | 472/473 | Seal face |
| 1.2 | 412.1 | O-Ring |
| 1.3 | 474 | Thrust ring |
| 1.4 | 478 | Righthand spring |
| 1.4 | 479 | Lefthand spring |
| 2 | 475 | Seat (G9) |
| 3 | 412.2 | O-Ring |
Recommended applications seal h12n
- Chemical industry
- Pulp and paper industry
- Water and waste water technology
- Low solids content media (H12GN)
- Hot water
- Chemical standard pumps
- Water and sewage pumps
