The valve is a combined differential pressure regulator, flow restrictor and equal percentage control valve with full stroke and propulsion.
PC (M) TV valves can be used in constant or variable temperature systems, constant volume flow systems (without actuators) or as pressure independent control valves in variable volume systems (with actuators).
DN15-25 PICV valves must be used in conjunction with Regin RVAPC ... or RTAM100 actuators.