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 →Sanitary Sight Glass Guide: Tri-Clamp, Specs & Selection
A 3,000-word deep guide to sanitary sight glasses: 3A/ASME BPE/USP Class VI standards, tri-clamp connection sizes, gasket materials, selection questions and CIP/SIP duty.
2026-08-25 · 15 min read
Read article →Sight Glass vs Sight Flow Indicator: Key Differences & How to Choose
Sight glass or sight flow indicator? A side-by-side comparison of function, indication, installation, price and maintenance — plus a decision checklist.
2026-08-25 · 9 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.