Spectacle Blind Flanges, API 6A Spectacle Blind Flange

Spectacle Blind Flanges are specialized flanges used to isolate sections of piping systems for maintenance or modifications. They are named for their distinctive appearance, which resembles a pair of spectacles or glasses. A spectacle blind flange consists of two discs connected by a small web: one disc is a solid plate (blind flange) that blocks the flow, while the other is an open disc (spade flange) that allows for flow when the blind is removed. This design allows for efficient flow isolation and facilitates easy maintenance.