Oilfield Glossary
Oilfield Glossary
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Tools

swivel flange

1. n. [Drilling, Production, Production Testing, Well Completions, Well Testing, Well Workover and Intervention]
A flange consisting of two parts—a hub and a ring. The hub contains the gasket profile, and the ring features the bolt-hole pattern. The ring can rotate around the hub for easier makeup. Once the bolts are tightened, the ring is compressed against the hub via a shoulder and secured in place.