Type 93FR Dry Gas Seals | John Crane Mechanical Seals
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Type 93FR

セパレーションシール (非接触型テクノロジー)

The Type 93FR is a non-contacting carbon bushing designed to protect dry gas seals from bearing oil ingress. Segments are specifically designed to prevent oil migration. Separation gas (normally nitrogen or air) is injected between the two segmented bushings, effectively creating a pressure barrier between the bearing and dry gas seal cavity. Advanced materials and design eliminate wear under normal running, promoting long service life.


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Features

  • California Residents: PROPOSITION 65 WARNING
  • Non-contacting for longer life and improved reliability, low heat generation.
  • Runs at low operating pressure differential enabling low gas consumption.
  • Specially designed segments further minimize gas consumption.
  • Universal design, independent of shaft rotation.
  • Will retrofit many traditional carbon bushing rings.
  • Suitable for running with nitrogen separation gas irrespective of dew point.
  • Self-centering design minimizes wear even during upset conditions.

Parameters

Temperature Limits

-40°F to 450°F/-40°C to 230°C

Speed Limits

430fps/130m/s

Size Limits

40mm to 375mm, with sleeve to fit all metric or imperial shafts

Recommended Applications

  • 离心压缩机
  • 其他压缩机
Works With
H-F H-F
PD 75 PD 75
H-R H-R
Type 28AT Type 28AT
Type 28EXP Type 28EXP
Similar Products
Type 83 Type 83

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