Annular Packing Element

A doughnut shaped, rubber/elastomer element that effects a seal in an annular preventer or diverter. The annular packing element is displaced toward the bore center by the upward movement of an annular piston.

Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global Standards




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