Hub Face Separation

Occurs when all preload is lost between the two hubs, flanges, or OEC faces, and the two faces have lost contact from OD to ID or ID to OD.

Source: API Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. Global Standards

Hub Face Separation

Separation is defined as zero contact forces between the mating hubs (from ID to OD) on the tension side of the applied load condition.

Source: API Technical Report 17TR7, Verification and Validation of Subsea Connectors, First Edition, April 2017. Global Standards

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