Mechanical Seal for stepped shafts, rotating spring
- Single Seal
- Balanced
- Conical spring
- Dependent on direction of rotation
Mechanical Seals of the B120N series are a cost effective version of a balanced seal. They feature the same robust and reliable construction as the unbalanced spring seals in the Longoseal range..
Operating Range
d1 = 10 ... 80 mm 0.4" ...3.125"p1 = 25 bar 360 PSI
t = - 50 ... 220°C - 58°F ... 430°F
vg = 15 m/s 50 ft/s
Details
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 | Right Hand Spring |
1.4 | 479 | Left Hand Spring |
2 | 475 | Seat (G9) |
3 | 412.2 | O-Ring |

