Positioning device for pressure regulator

Details Positioning device for pressure regulator Positioning device for pressure regulator

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 31/122 (2006.01) F16K 27/02 (2006.01) F16K 31/126 (2006.01)

Patent

CA 2664431

A control assembly for converting a "fail-close" regulator to a "fail-open" regulator, or vice versa, without having to modify or reconfigure a casing of the regulator includes a control member, a central rod (186), and a spring (193) disposed between first (188) and second (192) spring seats. A regulator including the control assembly includes a valve body and an actuator casing, the valve body defining a fluid flow-path. The control member is slidably disposed within the actuator casing and adapted for displacement relative to the valve body for controlling the flow of fluid through the flow-path. The spring (193) and spring seats (188, 192) are disposed about the central rod, such that the spring biases the control member into a predetermined position relative to the regulator casing.

L'invention concerne un ensemble de commande permettant de convertir un régulateur "à fermeture rapide" en un régulateur "à ouverture rapide", ou vice versa, sans devoir modifier ou reconfigurer le boîtier du régulateur. Ledit ensemble de commande comporte un élément de commande, une tige centrale (186), et un ressort (193) disposé entre le premier (188) et le second (192) siège de ressort. Un régulateur incluant le système de commande comporte un corps de soupape et un boîtier d'actionneur, le corps de soupape définissant un trajet d'écoulement fluidique. L'élément de commande est disposé de manière coulissante dans le boîtier d'actionneur, et conçu se déplacer par rapport au corps de soupape et contrôler l'écoulement fluidique à travers le trajet d'écoulement. Le ressort (193) et les sièges (188, 192) de ressort sont disposés autour de la tige centrale, de sorte que le ressort ramène l'élément de contrôle à une position prédéterminée par rapport au boîtier de régulateur.

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