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Single-Spring Elastomer Bellow Seals R91 BIA Mechanical Seal

elastomer mechanical seal
Elastomer Bellow Seals R91
Replacement for:
  • BIA mechanical seal

Features:
  • Single-Spring
  • SS316 metal available
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Performance Capabilities of Elastomer Bellow Seals R91

  • Temperature: -20℃ to 150℃, dependent on the elastomer
  • Pressure: Up to 8 bar
  • Speed: Up to 10 m/s
  • End play/axial float allowance ±0.1mm

Sizes of Elastomer Bellow Seals R91

14mm to 90mm

Materials Selection of Elastomer Bellow Seals R91

  • Face: Carbon, SiC, TC
  • Seat: Ceramic, SiC, TC
  • Bellow: NBR, EPDM, VITON etc.
  • Spring: SS304, SS316
  • Metal parts: SS304, SS316

Specification of Elastomer Bellow Seals R91

Elastomer Bellow Seals By Size  d D D1 L1 L2
R91-14 14 27.5 30 5 18.7
R91-16 16 28.5 32 5 21
R91-18 18 31.2 35 7.5 22.5
R91-20 20 31.7 35 8 21
R91-24 24 40.2 39 8 25.5
R91-25 25 40.2 40 8 25.5
R91-28 28 44.1 43 8 25.5
R91-30 30 45.1 45 9 25.5
R91-32 32 49 48 9 33.5
R91-33 33 49 48 9 33.5
R91-35 35 50.2 50 9 33.5
R91-38 38 55.3 56 9 33.5
R91-40 40 57 58 9 33.5
R91-43 43 60.7 61 9.5 36.5
R91-45 45 62.5 63 9.5 38
R91-48 48 66.5 66 9.5 38
R91-50 50 68.6 70 9.5 38
R91-53 53 70.8 73 9.5 41
R91-55 55 72.4 75 9.5 41
R91-58 58 80 78 9.5 42
R91-60 60 83 80 9.5 42
R91-65 65 87.2 85 9.5 43
R91-70 70 91.6 92 11 45
R91-75 75 99.4 97 12 48
R91-80 80 104.6 104 12 55
R91-85 85 111 109 12 64.2
R91-90 90 113 114 12 66.2

Design Drawing of Elastomer Bellow Seals R91

Elastomer Bellow Seals R91
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