Size: DN40-600mmRating: PN10/16, ANSI125/150Design Standard:API609;Material of main parts:Body: Cast iron, ductile iron, stainless steel, cast steel (WCB) , GGG40Disc: Monel, ductile iron, stainless steel, ductile iron with nylon coatedSeat: EPDMStem: steel,SS416 or SS304,SS316Body Flange Drilling Body:DIN2505;ANSI125/150;BS4504; Tope Flange: ISO5211Face to Face: ISO5752;API609;Test Inspection: API598;Suitable Medium: Water,Sewage,Air,Oil,Salty,etc.Operations: lever, Worm gear, Electric Actuator and Pneumatic