| 摘要 |
<p>A pressure relief valve (10) comprises a housing (20) having a base portion defining an airflow passage and a flap (90) positioned to overlie the airflow passage and having several mounting openings. At least a portion of the flap is movable relative to the base portion of the housing in response to an air pressure differential acting on opposite portions of the flap. The flap is made from Mylar (RTM) and is movable between an open condition for venting air from the first side to the second side of the valve and a closed condition for blocking flow of air from the second side to the first side of the valve. The housing has several generally T-shaped mounting posts projecting from the base portion of the housing. A snap connection is provided between the flap and the mounting posts to secure the flap to the housing with the mounting posts extending through the opening.</p> |
