A white paper offers a guide to glass selection to avoid sight-glass failure. The paper also offers advice about the conditions that must be considered during the design phase of a process application.

Free from L.J. Star Inc., Twinsburg, Ohio, “6 Tips for Critical Sight Glass Applications” explains how and why sight-glass failures can occur from temperature, thermal shock, pressure, caustics, abrasion or impact.

The highly engineered products are essential for the inspection and maintenance of vessels and pipelines in food, beverage, chemical and pharmaceutical processing plants. However, extreme forces, whether internal or external, can harm visibility and strength of glass components in a process vessel. Minor cracks, scratches or abrasions of the glass create weakness within the glass, increasing the likelihood of failure. When a sight glass fails, it can be dangerous, deadly and potentially catastrophic. In addition, the failure can result in downtime, scrapping the process media and bringing on EPA or OSHA inspections.

To obtain a copy of the white paper, go to www.ljstar.com/pubs/38.htm.