Model

FMDGXCN

Control
Flow Rate
Seal Material
Coil

Model: FMDG

Electro-proportional 3-way flow control valve, meter in (740 Series)

Cavity: T-11A | Capacity:

Model

FMDGXCN

Control
Flow Rate
Seal Material
Coil

Technical specifications

This valve is a 3-way, meter-in, electro-proportional throttle. The flow path, unenergized, has the supply blocked at port 1 and port 2 connected to tank at port 3. Energizing the coil generates a closing force on the spool, creating a metering orifice in the 1 to 2 direction that is proportional to the coil command current. The valve self-compensates in the 1 to 2 direction and with the addition of an external compensator will provide pressure compensated flow control. Flow in the 2 to 3 direction is not proportional.

  • The transition between positions is closed.
  • Using 2 3-ways to create a 4-way allows one to choose existing flow ranges instead of cutting a special spool.
  • These valves may be pressure compensated by an external, modulating, logic element. Use LR_C-XHN for a bypass circuit or LP_C-XHN for a restrictive circuit.
  • The valve provides a degree of self-compensation and may be used as a flow control. To increase the accuracy of flow control, an external, modulating, logic element can be used to maintain a constant flow over a wider range of flows and pressures. See performance curves for additional information.
  • All ports will accept 5000 psi (350 bar).
  • All configurations of this valve include zinc-nickel plating as standard for 1000-hour salt fog protection.
  • This valve can be used with both the 740 Series high-power coils and 747 Series hazardous location coils.
  • A wide variety of coil termination and voltage options are available, with and without surge protection. See the CONFIGURATION section.
  • Coil connector options offer ratings up to IP69K. See individual coil product pages for details.
  • Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge machining variations.
  • Hysteresis (with dither)
    <4%
  • Hysteresis with DC input
    <8%
  • Linearity (with dither)
    <2%
  • Repeatability (with dither)
    <2%
  • Recommended dither frequency
    140 Hz
  • Deadband, nominal (as a percentage of input)
    60%
  • Hysteresis (with dither)
    <4%
  • Hysteresis with DC input
    <8%
  • Linearity (with dither)
    <2%
  • Repeatability (with dither)
    <2%
  • Recommended dither frequency
    140 Hz
  • Deadband, nominal (as a percentage of input)
    60%

Model CAD Files

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