... .Disc: DI WCB SS 4.Stem: SS Double Eccentric Butterfly Valve 1.Size: DN50 to DN30002.Body: WCB SS3.Disc: DI ... Pressure: PN167.Surface: Electric Fussion Epoxy Powder Coated 8.Actuator: Hand Lever Worm Gear Penumatic Electric 9.Flange drilling standard: as ... . Long service life, free passage, low resistance coefficient.Suitable for control of water, seawater, sewage, oil, air, vapor, food, medicine, acids ...