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A Design Study in Steel Castings - Steel Plates in BOP Valve                                        

BOP Seal Ring Function

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In the annular type of BOP valve, the sealing element is an elastomeric packing ring which forms the conforming seal.

  • The packing is mechanically squeezed inward to seal on either pipe (drill collars, drill pipe, casing, or tubing) or the open hole.

The packing ring is compressed by the upward wedging action of the hydraulically actuated piston.
The compressed ring shuts off over-pressure gas and oil flow.





Copyright 2003  by the Steel Founders' Society of America   All rights reserved. 
Address comments to: blairr@sfsa.org
Last Modified:April, 2003 by STG

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