HomeIn line armaturesF 33.1 N In-line pressure and vacuum relief valveF 33.1 N In-line pressure and vacuum relief valve / In line armatures, In line pressure and vacuum relief valves / By Elke Nienstedt KITO® VD/T-1-…As inline armature with venting and breather valve function for vessels, preferably used for installation in pipes.The exhaust air is carried away via a pipe while the ventilation comes from the atmosphere. Download