Sightglass acc. DIN 11851 Standard Design Material: 1.4571/1.4404 (threaded nozzle); 1.4301 (cap nut) Perbunan-/PTFE-gasket Heavy wall nozzle (t=5,0-6mm) Borosilicatglass-pane acc DIN 7080 MAWP: 6bar PDF Downloading