首页>
外国专利>
Vent assembly and method for a digital valve positioner
Vent assembly and method for a digital valve positioner
展开▼
机译:用于数字阀门定位器的排气组件和方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
A digital valve positioner for use with an actuator. The digital valve positioner includes a housing, at least one exhaust port opening formed in the housing, and a vent assembly operatively coupled to the at least one exhaust port opening. The vent assembly includes a body having a bore, a valve seat surrounding the bore, and a check valve disposed within the bore. The check valve is arranged to shift from a closed position seated against the valve seat to an open position disposed away from the valve seat. A plurality of barriers is disposed around and positioned to enclose the check valve. The plurality of barriers is arranged to prevent an external medium from entering the check valve and to provide a tortuous flow path for the exhaust medium reducing sound through the vent assembly.
展开▼