Standard VG 85011-3:2016
Flanges on castings made of copper tin alloys - Part 3: Principles of design, round flanges DN 20 to DN 300, DN 20 to DN 32 - PN up to 25, DN 40 to DN 150 - PN up to 16, DN 175 to DN 300 - PN up to 10; Text in German and English Current