Loading... Please wait...GGG40 Ductile Iron Black Epoxy Painted, Flanged Ends PN10/16, Handwheel Operated, Max Working Pressure 16 Bar, Temperature Range with Standard Natural Rubber Dia. -40ºC + 100ºC. Spare diaphrams available in Natural Rubber, Black EPDM, Nitrile, Viton, and PTFE Butyl Backed.