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Catalog HY15-3502/US                              Proportional Flow Regulator Valve
                   Technical Information                             Series DFA125C21

            CV
                   General Description
                   2 Way, Normally Closed, Proportional Flow Regulator
                   Valve. Pressure Compensated. For additional informa-
            Valves
              Check
            SH     tion see Technical Tips on pages PV1-PV6.


                   Features
            Valves
              Shuttle
            LM     •  One piece cartridge housing ensures internal
                     concentricity
                   •  Coil: Waterproof, hermetically sealed, requires no
                     O’Rings; Symmetrical coil can be reversed without
              Load/Motor
            Controls
                     affecting performance.                                    (2)                 (3)
            FC
                                                                                                   (2)
                   NOTE:
                   This valve will be available January 1, 2011.               (3)
            Controls
              Flow
                                                                                                        Port (1)
            PC                                                                                        Is Not Used
                                                                       Performance Curves
                                                                        PWM Current Regulator Recommended
                   Specifications                                      Pressure Compensation of Regulated Flow
            Controls
              Pressure
            LE                                                           GPM LPM       Hydraulic Oil 150 SSU @ 100°F (32 cSt)
                    Rated Flow @ 75%  56.8 LPM (15 GPM)                  20  76.0
                    of Rated Current  Requires (‘SP’ Coil)
                                                                         15  57.0
                                                                         12  45.6
                    Maximum Input     210 Bar (3000 PSI)
              Logic
            Elements
                                                                         Flow
            DC      Pressure At Port 2                                    9  34.2
                                                                          6  22.8
                    Minimum Pressure  20.7 Bar (300 PSI)
                    Differential
                                                                          3  11.4
              Directional
            Controls
                                                                            0
            MV      Maximum Internal  568 cc (35 cu. in.)                    Bar             70          140          210
                    Leakage           @ 210 Bar (3000 PSI)                   PSI 0          1000         2000         3000
                                                                                              Load Pressure
                    Hysteresis @      >15%                             Flow vs. Input Current
                    100 Hz PWM
              Manual
            Valves
                                                                         GPM LPM       Hydraulic Oil 150 SSU @ 100°F (32 cSt)
            SV                                                           20  76.0
                    Cartridge Material  All parts steel. All operating
                                                                         15  57.0
                                      parts hardened steel.
                                                                         12  45.6
                                                                         Flow  9  34.2
                    Operating Temp.   -40°C to +93.3°C (Nitrile)
              Solenoid
            Valves
            PV      Range/Seals       (-40°F to +200°F)                   6  22.8
                                      -31.7°C to +121.1°C (Fluorocarbon)  3  11.4
                                      (-25°F to +250°F)                     0
                                                                                            25            50           75
                                                                               0
                    Fluid             Mineral-based or synthetic with                        Input Current (%)
              Proportional
            Valves
            CE      Compatibility/    lubricating properties at viscosities
                    Viscosity         of 45 to 2000 SSU (6 to 420 cSt)
                                                                       Pressure Drop vs. Flow (Through cartridge only)
                                                                         PSI  Bar      Hydraulic Oil 150 SSU @ 100°F (32 cSt)
                    Filtration        ISO Code 16/13,
                                      SAE Class 4 or better
            Electronics
              Coils &
            BC                                                           200  13.9  2-3 ENERGIZED
                                                                                 @ 75% of Rated Current
                    Approx. Weight    .40 kg (.89 lbs.)                  Pressure Differential
                    Cavity            C12-3L                             100  6.9
                                      (See BC Section for more details)
              Bodies &
            Cavities
            TD                                                              0
                                                                             LPM        15.2      30.4      45.5      60.8
                                                                                0
                                                                            GPM          4         8         12        16
                                                                                                Flow (Q)
              Technical
            Data
                                                                   PV39                        Parker Hannifin Corporation
                                                                                               Hydraulic Cartridge Systems
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