HomeEnd of line armaturesD 12.4 N Vacuum relief valve D 12.4 N Vacuum relief valveEnd of line armatures, Vaccum relief valve / By Elke Nienstedt KITO® VS/oP-… As end-of-line armature on storage tanks and silos in which powder products and granulates are stored. Ventilation is provided to pre-vent dangerous vacuum. All moving parts are outside the storage room. Download