Oil Circulation Windows

For trouble-free visual inspection
Observation windows are used to provide a clear view of gears, lube level, couplings, chains or switches in sealed or oil immersed areas. Observation Windows can also be called oil windows, oil sight glasses or circulation windows.

  • One-step fixation, self-locking, no thread required, no machine wall reinforcement needed
  • Solid, shock-resistant transparent acrylic
  • Withstands temperatures up to 158° (70° C)
  • Absolutely oil tight, withstands internal pressures up to 8.8 psi (0,6 bar)
  • NBR seals
  • Extremely stable and fracture-resistant. No protective cage required
  • Can be mounted vertically or horizontally

Observation Window Dimensions

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