PRESSURE RELIEF VALVE FOR CONTAINERS SUITED FOR THE PNEUMATIC LOADING OF LOOSE SOLID PRODUCTS, IN PARTICULAR SILOS

摘要

A pressure relief valve (1) for containers (3) suited for the pneumatic loading of loose solid products, in particular silos. The valve (1) comprises a valve body (2) having a first end, which pneumatically communicates with the inside of the container (3), and a second end, which is associated to a flow control organ (7), which is subject to the action of corresponding closing membrane (8). The flow control organ (7) periodically establishes. a fluid communication between said valve body (2) and a duct (22) that communicates with the outside. The valve (1) is characterised in that at least one portion of the duct (22) that communicates with the outside is suited to be elastically deformed by the pressure difference existing between the inside of said container (3) and the inside of the duct (22) itself.