DFR-120-3

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Schematic
Pressure Drop vs Flow
Dimensions
How to Order
Description

A fixed bypass-type cartridge valve designed to regulate priority flow while bypassing excess flow regardless of load pressure.

Operation

The DFR-120-3 maintains a constant flow within specified accuracies from ➀ to ➂ regardless of downstream load pressure at ➂ or bypass leg ➁. When flow produces a minimum predetermined pressure differential across the compensator spool control orifice, the spool shifts against the spring force to throttle the flow and maintain the priority flow setting. Reverse flow is not regulated.

Features and Benefits
  • Pressure-compensated.
  • Quiet response.
  • Bypass port ➁ may be fully pressurized.
  • Industry common cavity.
Specifications
Max Operating Pressure (psi)
3000
Max Operating Pressure (bar)
207
Flow gpm
25.0
Flow lpm
94.6
Cavity
Valve Style
Spool
  • Operating Pressure: 3000 PSI (207 Bar)
  • Flow:
    • Ranges from 2 to 13 gpm (7.6 to 49.2 L/min.) (See ordering table)
    • 25 gpm (94.6 L/min.) max. input.
  • Flow Tolerances:
    • Flows up to and including 3.0 gpm (11.4 L/min.) +15%
    • Flows over 3.0 gpm (11.4 L/min.) +10%
  • Temperature: -30° F to +250° F (-35°C to +120° C)
  • Recommended Filtration: ISO 17/15/13
  • Fluids: Mineral-based fluids. For other fluid compatibility consult factory.