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发明公开
CN101657772A 用于气体调节器的次级阀座 有权

用于气体调节器的次级阀座
摘要：
一种流体调节装置包括阀盘(128)和适于在受阻的闭合操作过程中提供次级密封的阀口(136)，密封阀盘(128)直接接合阀口(136)的壳体(260)部件，从而使次级密封的完整性最大化并有利地减小现有阀口的尺寸和复杂性。阀口(136)包括壳体(260)和可滑动地设置在该壳体(260)内的插装筒(262)。阀盘(128)在正常闭合操作过程中直接接合插装筒(262)包含的主级阀座。然而，在受阻的闭合操作过程中，插装筒(262)被推到壳体(260)中，使得阀盘(128)在插装筒(262)下游的位置直接接合壳体(260)包含的次级阀座。
摘要（英）：

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 ahousing (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 alocation that is downstream of the cartridge (262).

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