Hydraulic logic valve symbols

Learn about cartridge poppet logic valve symbols

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Logic control valve symbols

logic valve symbol

Logic valves come in many different forms so we've only tried to cover a few of the main types here.

Top left is a directional control cartridge poppet valve with a 1:1 ratio, as shown by the straight nature of the spool/poppet body.

Top right is a directional control cartridge poppet valve with an area ratio =< 0.7

Bottom left is a directional control cartridge poppet valve with an area ratio > 0.7

Bottom right is a directional control cartridge poppet valve with an area ratio =< 0.7 but with a damped / throttle nose.

Learn more about logic valves


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