A BI slip-on flange is a type of flange often used in piping systems. It is a versatile connector—commonly used to join pipes and fittings in plumbing and industrial systems. It's easy to install due to its raised face, which allows for slipping it easily over the end of a pipe before being welded in place. The term "Bi" indicates the type of flange that can come in blind (no hole in the center) or non-blind (with a hole in the center) varieties.
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