Valves for use in wells

Details Valves for use in wells Valves for use in wells

E - Fixed Constructions

21

B

E21B 34/06 (2006.01) E21B 21/10 (2006.01) E21B 34/10 (2006.01)

Patent

CA 2360083

A valve assembly includes a seat having at least an opening and a first surface. A cover has a contact surface that is slideably and sealingly engaged to the first surface of the seat to form a seal when the contact surface completely covers the at least one opening.

L'invention porte sur une vanne dont le siège comporte au moins une ouverture et une première surface et un couvercle dont la surface de contact coulissante qui plaque sur la première surface du siège forme un joint étanche lorsque le couvercle recouvre entièrement ladite ouverture.

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