... .manual,electric,pneumatic operated. Wafer Type Butterfly Valve with Lever actuatorFeatures:1. Small in size, light in weight, easy installation ... Air, Vapor, Food, Medicine, Oils, Acids,Alkalis, etc.Operating mode manual, worm gear, pneumatic, electric, etc. Standard: Design & ManufactureFlange ConnectionFace ... what you want from our catalogue as below: Manual Operated Wafer Type Butterfly Valve