Sight Windows

Jacoby-Tarbox manufactures sight windows for nearly all connections from male and female threaded, flanged, and welded.  Circular and Obround windows are available manufactured in accordance with Section VIII of the ASME Boiler and Pressure Vessel Code.  Most sight windows are available with UniGlas® and, or Dual Window assemblies.

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Bolt-On & Security Sight Windows

Jacoby-Tarbox bolt on and security sight windows provide safe, economical tank viewing from light to severe service.  Model 5800 UniGlas® sight window plus a retaining flange combine to simply change any flange or studding outlet into an observation port.

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Weld-On Sight Windows for ASME Pressure Vessels

Jacoby-Tarbox’s full ASME rated line of flanged bullseye sight flow indicators have been engineered per the design criteria of the ASME B31.1 & 31.3 Power & Chemical Piping Codes, incorporating only ASTM listed metals in the unit’s construction.

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Threaded Sight Windows

Jacoby-Tarbox manufacturers sight windows with both male and female threaded connections.  Specialty UniGlas sight plugs are available up to 4000 psig (275 bar).