Mechanical Seals B120N

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 

B120N
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