Internal blow out preventer ball and seat

Details Internal blow out preventer ball and seat Internal blow out preventer ball and seat

E - Fixed Constructions

21

B

E21B 33/06 (2006.01)

Patent

CA 2538264

An internal blow out preventer is provided that includes a ball valve including a tubular assembly having a central passageway with upper and lower seats mounted therein. A ball is rotatably received between the upper and lower seats and includes an external surface and a central opening, wherein the central opening includes an undercut. A protective coating is applied to both the external surface and the undercut of the ball.

La présente invention concerne un dispositif de prévention d'éclatement interne qui comprend une valve à bille comprenant un ensemble tubulaire lequel inclut un passage central avec des sièges supérieur est inférieur montés dans ce passage. Une bille est reçue de manière à pouvoir tourner entre les sièges supérieur et inférieur et elle comprend une surface externe et une ouverture centrale, cette ouverture centrale comprenant une coupure inférieure. Un revêtement de protection est appliqué sur la surface externe et sur la coupure inférieure de cette bille.

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