Secondary seat for gas regulator

Details Secondary seat for gas regulator Secondary seat for gas regulator

G - Physics

05

D

G05D 16/06 (2006.01) F16K 1/36 (2006.01) F16K 1/44 (2006.01) F16K 25/00 (2006.01)

Patent

CA 2682236

A fluid regulating device includes a valve disc (128) and a valve port (136) adapted to provide a secondary seal during an obstructed closing operation, whereby the valve disc (128) directly engages a housing (260) component of the valve port (136) to maximize the integrity of the secondary seal and advantageously reduce the size and complexity of existing valve ports. The valve port (136) comprises a housing (260) and a cartridge (262) slidably disposed in the housing (260). The valve disc (128) directly engages a primary seat carried by the cartridge (262) during a normal closing operation. During an obstructed closing operation, however, the cartridge (262) is pushed into the housing (260) such that the valve disc (128) directly engages a secondary seat carried by the housing (260) at a location that is downstream of the cartridge (262).

Le dispositif de régulation de fluide selon l'invention inclut un disque de soupape (128) et un orifice de soupape (136) adaptés pour fournir un siège secondaire pendant une opération de fermeture par obstruction, au moyen de quoi le disque de soupape (128) engage directement une partie du corps (260) de l'orifice de soupape (136) pour optimiser l'intégrité du siège secondaire et pour réduire de façon avantageuse le taille et la complexité des orifices de soupape existants. L'orifice de soupape (136) comprend un corps (260) et une cartouche (262) disposée de façon coulissante dans le corps (260). Le disque de soupape (128) vient directement en contact avec un siège principal porté par la cartouche (262) pendant une opération de fermeture normale. Pendant une opération de fermeture par obstruction, cependant, la cartouche (262) est poussée dans le corps (260) de sorte que le disque de soupape (128) vienne directement en contact avec un siège secondaire porté par le corps (260) en un emplacement qui se situe en aval de la cartouche (262).

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