Wafer Butterfly Valve, Flange Butterfly Valve, Lt Butterfly Valve manufacturer / supplier in China, offering Manual Actuator Handle/Gear Box Stainless Steel SS316 CF8m Wafer Type Butterfly Valve with Pn10/Pn16 150lb, Pneumatic Operate Ductile Iron/Stainless Steel Body and Disc Pn10/16 Wafer Butterfly Valve, Ser. 13 Ser. 14 DN800 DN900 DN1000 DN1200 DN1400 DN1600 DN1800 DN2000 Large Size Ductile Iron Double Offset Eccentric Butterfly Valve for Water Medium and so on.