ARCHON model KBRFNL sight glasses provide a quick, efficient and economical way for process observation when bolted on to a standard ASME/ANSI Class 150 raised face flange. They are widely used in the general processing industry to allow any existing flanged connection to become a sight glass.

Operating Conditions

Standard units are designed for full vacuum and 150 psig. Temperature rating is limited by the gasket material and/or lens material. 10” model is rated for 75 psig.

Options and Accessories

KBRFNL sight glasses can be supplied with the following options and accessories:

• Lighting units for hazardous or non‐hazardous locations
• Low pressure wipers