Piloted pressure regulatory valve The PM5 valve is a piloted pressure regulator, made in modular version. It is available with limitation of pressure on P, on A, on B, on A and B, with limitation on A and B and cross discharge, in four pressure adjustment fields. This valve is used as a circuit pressure limit. It is supplied with recessed ESAGONE regulation screw and locking nut. The version with knob is also available.