Check valve

Details Check valve Check valve

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 15/02 (2006.01)

Patent

CA 2537838

A check valve comprising a poppet (30) urged by a conical spring (50) to annularly seal uniformly around its entire periphery to assure more uniform cracking pressure about its entire periphery. To insure uniform sealing of the poppet (30) against a seat (36) the conical spring (50) has a smallest coil (50S) in engagement with a center protrusion (42) of the poppet (30) to permit the protrusion (42) to pivot relative to the conical spring (50).

La présente invention a trait à un clapet comportant un champignon sollicité par un ressort conique pour l'obturation étanche uniforme annulaire autour de toute sa périphérie pour assurer une pression d'ouverture plus uniforme autour de toute sa périphérie. La pression d'ouverture peut être ajustée au moyen d'une platine réglable qui réduit la longueur du ressort conique, accroissant ainsi la quantité de force exercée par le ressort sur le champignon en engagement étanche, augmentant ainsi la pression d'ouverture.

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