EN 13828This description is for standard: EN 13828This European standard applies primarily to copper alloy ball valves, dimensions DN 8 to DN 100, for potable water supply in buildings up to PN 10 and
EN 817This description is for standard: EN 817This European Standard specifies: ? the dimensional, leaktightness, pressure resistance, hydraulic performance, mechanical strength, endurance and acousti
EN 15092This description is for standard: EN 15092This European Standard specifies dimensions, materials and performance requirements (including methods of test) for in line hot water supply tempering