Ram type blowout preventor

Details Ram type blowout preventor Ram type blowout preventor

1998-04-09

2000-07-18

Fox, John

Valves and valve actuation

Blow-out preventers

Radial reciprocating ram

251 11, E21B 122

Patent

active

060895268

ABSTRACT:
There is disclosed a ram type blowout preventor whose rams have variable ram packers for sealing about pipes of difference sizes in the bore of the preventor housing. Each ram packer includes a body of elastomeric material installed with a slot across the face of a metal ram body slidable with a guideway intersecting the bore of the preventor body. First and second sets of metal segments embedded in the body of elastomeric material beneath a top plate embedded in the packer body are so constructed and arranged as to prevent extrusion of the elastomeric material as the packers seal about the different sizes of pipe.

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