... 600LB Type: Wafer type, lugged type, flanged type, center line/double eccentric/triple offset type, metal seated or soft seated, high performance ... , DUPLEX SS, MONEL, ALLOY 20, cast iron etc. Operation: Gear, pneumatic and electric actuator 1. name : electric combination butterfly valve2. size ... , electric . hydraulic7. payment : T/T L/C ProfiBus debugging electric valve