... 1, BS5155 , ISO 5752Top flangeISO 5211BodyDuctile iron,Stainless steel,WCBDiscDuctile iron,CF8,CF8M,C95400,C95500StemSS416,SS420,SS431,SS316SeatNBR, ... EPDMSuitale mediumSewage, Sea water, Air, Foodstuff and OilThese ... valves and so on with the materials of ductile iron, carbon steel, stainless steel to order. Our ...