Cast Iron Body, SS steel Disc, DN50-DN300 (Water Type) 16 bar at -10 Degree Celcius to 120 Degree Celcius Water and Natural Liquids application shell (water) 17.6 bar. Available in sizes (MM) 50, 65, 80, 100, 125, 150, 200, 250, 300, 350, 400, 450...