Filling valve for food product container filling machine with piston blade cooperating with counter-blade around outside of discharge opening

摘要

The filling valve has a mouthpiece provided with a discharge opening (5) and a piston (3) moved in the axial direction (6) between a closed and an open position of the discharge opening. The piston rod has a blade (8) extending parallel to the axial direction in a full circle around the piston rod, for fitting within the discharge opening in the closed position, for cooperating with a counter-blade (12) extending in a full circle around the discharge opening. A collection channel (13) extends around the outside of the counter-blade on the opposite side to the piston blade.