Fluid valves having an integral safety shut-off

F - Mech Eng,Light,Heat,Weapons – 16 – K

Patent

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Details

F16K 1/44 (2006.01)

Patent

CA 2743577

Fluid valves having an integral safety shut-off are described. An example bonnet assembly for use with a control valve having opposing seating surfaces includes a first bonnet that is to be removably coupled to the control valve. The first bonnet (210) having a first bore (211) adapted to receive a portion of a first valve trim and further adapted to engage one of the seating surfaces to provide a fluid seal between the first bore and the portion of the first valve trim. Additionally, the second bonnet (216) that is to be removably coupled to the control valve. The second bonnet (216) having a second bore adapted to receive a portion of a second valve trim and further adapted to engage the other one of the seating surfaces to provide a fluid seal between the second bore and the portion of the second valve trim.

Les systèmes décrits sont des vannes pour fluide avec fermeture de sécurité intégrée. Un exemple d'ensemble de chapeaux utilisé dans une vanne de régulation comportant des surfaces de portée opposées comprend un premier chapeau qui est accouplé de façon amovible à la vanne de régulation. Le premier chapeau (210) comporte un premier alésage (211) conçu pour recevoir une partie d'un premier mécanisme de vanne ainsi que pour s'engager sur l'une des surfaces de portée afin de créer un joint étanche aux fluides entre le premier alésage et la partie du premier mécanisme de vanne. De plus, le système comporte un deuxième chapeau (216) accouplé de façon amovible à la vanne de régulation. Le deuxième chapeau (216) comporte un deuxième alésage conçu pour recevoir une partie d'un deuxième mécanisme de vanne ainsi que pour s'engager sur l'autre surface de portée afin de créer un joint étanche aux fluides entre le deuxième alésage et la partie du deuxième mécanisme de vanne.

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