| 摘要 |
The pressure limiting valve consists of a pipe (2) with its inner end linked to the container (3) and its outer end (5) equipped with a shut-off valve (7) actuated by elastic elements. The shut-off valve is connected via a duct (22,23) to the exterior and is located between the outer end of the pipe and an auxiliary chamber (CA) which is linked to the interior of the container and is equipped with a pilot assembly (12-14) for opening the valve. The pilot assembly is gravity operated, comprising a calibrated weight (15) which slides inside a frame in a vertical direction to control the opening (11) of an upper aperture in the auxiliary chamber. The frame has a base for a sliding shut-off element connected to the weight, and has a series of columns with gaps between them through which a fluid can flow into the container. |
