How Does a Bleed Ring Flange Work? A bleed ring flange, by comparison, adds an access point between those standard flange connections. Advantages of Using a Bleed Ring FlangeA major advantage of a bleed ring is that it provides additional functionality without requiring a welded branch connection directly into the pipeline. FAQ About Bleed Ring FlangesWhat does a bleed ring flange do? Choosing the Right Bleed Ring FlangeChoosing the right bleed ring requires a clear understanding of the piping system and the function the connection needs to perform.