Improvements in the valves for the discharge of gases in systems of circulation of liquids. (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in the valves for the discharge of gases in liquid circulation systems, and in particular those used as air purge valves for central heating installations, installed at the end of a discharge duct in the system, essentially characterized by comprising at least one fiber washer, impregnable and inflatable, mounted on a support arranged at the outlet end of the discharge conduit, whose washer, upon receiving moisture, completely fills the support, exerting a sealing action . (Machine-translation by Google Translate, not legally binding)