Bolt Style Sight Glass

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Steel & O’Brien is pleased to announce an economical bolt style sight glass. This in-line sight glass is comprised of a stainless steel frame and glass. Observe the flow of product clearly and precisely through your process lines. Made with borosilicate glass and sealed with FKM gaskets and clamp end connections.


• 316L SS end connection material

• Finish ID/OD is 32Ra per 3A requirements

• Borosilicate glass viewport

• FDA FKM gasket material

• 304 SS hardware material

• Maximum temperature 250° F (121° C)

• 3A Certified

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