... Materials: WCB, Ductile iron, CF8, CF3, CF8M,CF3M etc Resilient seated Butterfly valve 1) Product range1.Rating: PN 1.0-1.6MPa2 ... ,CF3M etc 2)Design feature: 1 Seal: PTFE, NRB rubber soft seal2 Replaceable disc sealing ring3 Operation: Worm Gear, electric actuator ...