Eaton CMX Sectional Controls

The CMX sectional valve is a stackable, load sensing, proportional directional control valve, and can be operated by hydraulic remote control (HRC) or electronic remote control (ERC) via integral electrohydraulic reducing valves.

A characteristic feature of the CMX valve line is the concept of separate meter-in and meter-out elements. The meter-in element is a pilot operated, flow force, pressure compensated, proportional sliding spool and controls fluid from the pump to the actuator. The meter-out elements are pilot controlled metering poppets, and control exhaust fluid from the actuator to tank. Each meter-out poppet functions as a variable orifice between one of the actuator’s ports and the tank port, with the degree of opening proportional to the pilot signal.

A CMX valve bank is made up of an inlet body, from one to eight valve sections, and an end cover. The valve sections are connected internally to common pressure, tank, load sense, pilot supply and pilot drain passages. Face seals between the sections seal the connecting passages, and the sections are held together by tie rods and nuts. Threaded mounting bolt holes are provided on the inlet body and end cover.