Spectacle Blind Flange is a type of pipe fitting resembling the number "8", mainly used in flange connected pipeline systems to achieve "conduction" or "sealing" of pipelines by rotating and switching states:
One side is a solid blind end: used to completely seal the pipeline and block the flow of medium;
On the other side is a circular spacer end: there is a through-hole in the center that matches the inner diameter of the pipeline, used to maintain pipeline continuity;
The middle is connected to the flanges on both sides through bolt holes, and the state can be switched by rotating without disassembling the flanges, making the operation convenient.
Spectacle Blind Flanges are mainly used in industrial pipeline systems that require quick switching between "conduction/blocking" states. Typical scenarios include:
Temporary isolation during equipment maintenance in process pipelines (such as sealing pipelines before pump and heat exchanger maintenance);
Media switching system (such as pipeline switching between two different media);
Quick isolation in emergency situations (no need to disassemble flange bolts, can be switched by rotating).
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