Safety valve, in particular for closing an oil well

Details Safety valve, in particular for closing an oil well Safety valve, in particular for closing an oil well

E - Fixed Constructions

21

B

166/41

E21B 34/12 (2006.01) E21B 29/04 (2006.01) E21B 29/08 (2006.01) E21B 34/04 (2006.01) E21B 34/10 (2006.01) F16K 5/06 (2006.01) E21B 34/00 (2006.01)

Patent

CA 1225326

P A T E N T ETUDES ET FABRICATIONS FLOPETROL SAFETY VALVE, IN PARTICULAR FOR CLOSING AN OIL WELL ABSTRACT OF THE DISCLOSURE In a cylindrical valve body I slides a sleeve (3) whose end (26) supports swivelably a spherical plug (2) and the first fluid-tight seat (4), which cooperates with the crown (29) of the spherical plug. The other crown (28) of the plug is provided with a radial slot (25) which receives a bar (US) mounted on the valve body (1). During the movement of the sleeve (3), the spherical plug (2) turns around the bar (15) to meet, in the open position, the lower seat (5) integral with the valve body. Figure 2C.

471009

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