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Elastomer Bellows Double Seal

Type TU4702

Elastomer Bellows Double SealType TU4702 -d

 

 

 

 

 

 

 

 

Technical Features

  • Double seal
  • Unbalanced
  • Single spring
  • Independent of direction of rotation
  • Elastomer bellows

Technical Data

Media: water, light oils, and mildly aggressive fluids
p1 = 0.3 MPa
t = -20 – 180 ?C
vg = 10 m/s

Materials

Seal face: silicon carbide, carbon graphite (resin impreg.)
Stationary Seats: silicon carbide, silicon nitride, Al-Oxide (99.5%)
Bellows: NBR, FPM
Housing parts: 1Cr18Ni9Ti
Spring: 1Cr18Ni9Ti
Secondary seals: NBR, FPM

d D L L1 L2
20 35 46.5 6.5 8
25 40 52 6.5 8
28 43 52 6.5 8
30 45 54 7.5 9
32 48 64 7.5 9
35 50 64 7.5 9
40 58 64 7.5 9
45 63 71 8 9.5
50 70 71 8 9.5
55 75 75 8 9.5
60 80 77 8 9.5