Curved flapper valve

Details Curved flapper valve Curved flapper valve

E - Fixed Constructions

21

B

E21B 34/06 (2006.01) E21B 34/10 (2006.01) F16K 1/20 (2006.01) F16K 1/22 (2006.01) F16K 15/03 (2006.01) E21B 34/00 (2006.01)

Patent

CA 2433703

A flapper valve having a curved flapper and a seat, the flapper and seat each having complementary undulating and tapered perimeters, with sealing surfaces designed to maintain seal integrity under higher pressure, for a given outer diameter to inner diameter ratio, compared to prior art flapper valves.

L'invention a trait à un clapet muni d'un joint incurvé et d'un siège. Le clapet et le siège comportent des périmètres ondulés et coniques à surface d'étanchéité conçues pour assurer l'intégrité de scellement dans des conditions de presion élevée, pour un ratio diamètre extérieur/diamètre intérieur donné, ce qui représente une amélioration par rapport à l'état de la technique.

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