Pressure relief valve for containers suited for the pneumatic loading of loose solid products, in particular silos

摘要

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

主权项

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