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MoogModel G631/631 Series -Flow Control Servo Valve

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The G631 series flow control servovalves are throttle valves for 3- and preferably 4-way applications. They are a medium performance, two-stage design that covers the range of rated flows from 1.0 to 20 gpm at 1,000 psi valve drop. The output stage is a closed center, four-way sliding spool. The pilot stage is a symmetrical doublenozzle and flapper, driven by a double air gap, dry torque motor. Mechanical feedback of the spool position is provided by a cantilever spring. The valve design is simple and rugged for dependable, long life operation. These valves are suitable for electrohydraulic position, speed, pressure or force control systems with high dynamic response requirements.
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  • Rated Flow

    4 to 76 l/min (1 to 20 gpm) @ ?p 70 bar (1000 psi)

  • Maximum Flow

    150 l/min (40 gpm)

  • Maximum Operating Pressure

    310 bar (4,500 psi)

  • Mounting Pattern

    ISO 4401-05-05-0-94 (for 4 ports)

  • 100% Step Response

    10 to 15 ms @ 210 bar (3,000 psi)

  • Electric Data
  • Supply Voltage

    N/A

  • Rated Signal Options

    +/-15 and +/-50mA

  • Additional Options

    Contact Industrial Application Engineering for additional Flow, Pressure, and Signal options