Butterfly valve can not remove the butterfly plate, butterfly plate is fixed with pins and valve stem
Summary: if the repair, then suggest buyers change itOf course, if the pin is easily removed.
Method two: the pin is too big, drill the screw hole on the pin, and then screw up, pull out the pin (can not hurt)
The plate is a pain in the neckMethod 1: take out the pin and go out and drill the pin out