Stainless Products SP56SG-2-3 Sight Glass

Stainless Products SP56SG-2-3 Sight Glass is a hygienic inline viewing window from the SP56 family that provides a full 360° view of process media, suitable for both vertical and horizontal mounting, with the caveat that when mounted horizontally no mechanical force should be exerted on the glass. It ships with SP56-40-2 gaskets and carries 3-A sanitary certification, reflecting its compatibility with sanitary process systems and ease of disassembly for inspection. The viewing window is borosilicate glass rated for up to 100 psi, with a maximum operating temperature of 200°F, and the unit uses Tri-Clamp end connections for standard SP56 fittings. For the 3-inch glass variant, mounting dimension A is 6.50 in. This sight glass is commonly used on vessels and pipelines to visually monitor color, clarity, and process conditions without exposing the media to the external environment, making it a precise choice for hygienic applications that require reliable, glass-view visibility in sanitary operations.