SIGHTSPEC BLOG
Sight Glass Technical Guides
Practical, engineering-level guides on sight glasses: how they work, how to select them, and how to match the glass type to your process. Written by our factory engineers for buyers, specifiers and maintenance teams.
What Is a Sight Glass? Definition, Working Principle and Types
The definition, why process plants need sight glasses, how they work, a soda lime vs borosilicate vs quartz comparison, and the four main sight glass types.
2026-08-25 · 8 min read
Read article →How to Choose a Sight Glass: A 6-Question Selection Guide
Pressure, temperature, materials, application, gasket and mounting — six questions that narrow any sight glass requirement down to the right model.
2026-08-25 · 8 min read
Read article →Sight Glass Glass Types: Borosilicate vs Soda Lime vs Quartz
A deep comparison of the three sight glass glass types: temperature limits, thermal shock resistance, chemical compatibility, pressure behavior and cost.
2026-08-25 · 8 min read
Read article →Have a Sight Glass Question Our Guides Do Not Cover?
Ask our engineers directly — send your process details and get a recommendation within 24 hours, factory-direct.