Mechanical Seals U740-D

Mechanical Seal for plain shafts, spring rotating

  • Double seal
  • Unbalanced
  • Multiple springs
  • Independent of direction of rotation

Double seals in the U740-D series have the same design-features as the "U700N" family of single seals

Operating Range

d1 = 18 ... 200 mm 0.625" ... 8"
p1 = 16 (25) bar 230 (360) PSI
t = -50 ... 220°C (-20 ... 180°C*)
vg = 20 m/s (10 m/s*) 66 (33) ft/s

Details

Item Part No - DIN 24250 Description 
1.1 472.1 Seal face
1.2 472.2 Seal face
1.3 474 Thrust ring
1.4 485 Drive Collar
1.5 477 Spring
1.6 904 Set screw
1.7 412.1 O-Ring
1.8 412.2 O-Ring
2 475.1 Seat (G9)
3 412.3 O-Ring
4 475.2 Seat (G9)
5 412.4 O-Ring

 


U740-D
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