Valves GATE VALVES. Application Water, Irrigation I Sewage I General Industries Product Range & Specification Size -2 to 12′ Pressure Rating – PN 10 / PN 16 End Connection – Flanged Material of construction – Cast Iron & Ductile Iron Standards Design – IS 14346 Face to Face – I IS 14846 Flange Standard Conformity – IS 1538 Testing – EN 12266 – 1 / IS 14846