Ball valve coupling

Details Ball valve coupling Ball valve coupling

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 37/30 (2006.01) F16K 5/06 (2006.01) F16L 37/373 (2006.01)

Patent

CA 2209828

This invention relates to an environmental coupling that reduces spillage to less than 1 ml. One ball valve (22') includes flat surfaces (102') on the ball and a retainer (104') with "flats" (106') that correspond to the "flats" on the ball valve. This feature keeps the ball valve (22') on centerline and allows valve actuation without damage to either ball valve. The coupling also provides other numerous safeguards against spillage. For instance, the handle design prohibits wrong sequencing of opening and closing the ball valves.

L'invention se rapporte à un raccord protégeant l'environnement car il réduit la perte de liquide à moins d'1 ml. Un tournant sphérique (22') comprend des surfaces plates (102') ainsi qu'un dispositif de rétention (104') également pourvu de surfaces plates (106') correspondant aux siennes. Cette caractéristique permet au tournant sphérique (22') de rester dans l'axe médian, ainsi qu'un fonctionnement du robinet sans endommagement de l'un quelconque des tournants. Ce raccord comporte également de nombreux autres dispositifs de sécurité contre la perte de liquide. Par exemple, la conception du manche empêche une mise en séquence erronée des tournants sphériques d'ouverture et de fermeture.

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