| 摘要 |
An air-relief valve assembly (10) adapted for use in connection with a pressure vessel (12) includes a body (14) sized and shaped so as to be mounted on the pressure vessel (12) and having a first valve opening, which is in communication with the interior of the pressure vessel, and a second valve opening, which is in communication with the exterior of the pressure vessel (12) and the first opening. The valve assembly (10) also includes a first closing member (70) for closing off the first opening and a second closing member (82) for closing off the second opening. The first and second closing members (70, 82) are positioned in their open positions during the filling of liquid in the pressure vessel (12) so as to permit expulsion of gas from the interior of the pressure vessel (12) through the first and second openings. |
