Allowable Bend Radius

Minimum radius to which an umbilical, at a given tension, may be bent to without infringing design criteria or suffering loss of performance. See Figure 1. NOTE 1 The bend radius is measured to the centreline of the umbilical. NOTE 2 Allowable bend radius increases with increasing tensile load and varies depending on internal pressure and condition, i.e. safety level.

Source: API SPEC 17E, Specification for Subsea Umbilicals, Upstream Segment, Fourth Edition, October 2010. Global Standards


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