YFL 150lbs 6'' & 8'' wafer type PFA lined control butterfly valves are exported to Philippines for corrosive medium. The corrosion resistant PFA lined butterfly valves have carbon steel WCB body lined with PFA, and stainless steel CF8 disc lined with PFA. The control butterfly valves are equipped with SMC air regulator and filter, Siemens electric-pneumatic positioner, double acting pneumatic actuator with emergency handwheel.