Model L is the most maintenance-friendly sight window on the market.
Unlike other sight windows that rely on gasket compression for sealing, this window uses our proprietary sidewall seals. The glass windows are not subjected to direct thrust of the flange bolts at all, and there is no danger of crushing the glass while attempting to re-seal the window.
Since seal-maintenance tends to be the most expensive part of long-term sight window use, these models offer the lowest overall cost of ownership and use among all sight windows.
These windows are available in the popular ANSI CL150, and for ratings up to 150 PSI and 450F. Other flange sizes and ratings are available upon request.
REQUEST A QUOTE for large volume orders, or special metal or glass requirements.
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