Page 69 - Parker - Pressure Control Valves
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Catalog HY15-3502/US                              Dual Cross-Over Relief Valve
                   Technical Information                             Series XRDH103

            CV
                   General Description
                                                                                                   A  Control Valve  B
                   Dual Cross-Over Relief Valve with
                                                                                                      RVA
                   Motor Mount. This valve provides
              Check
            Valves
            SH     overload and shock protection for
                   small gerotor motors with a manifold
                   mounting pattern, such as the Parker TB
                   and TE series. Close coupling the valve to the motor
                   provides ideal protection and eliminates plumbing.                                      RVB
            Valves
              Shuttle
            LM
                   For additional information see Technical Tips on                                A    Motor   B
                   pages PC1-PC6.
                   Features
              Load/Motor
            Controls
            FC     •  Fast acting differential area reliefs for high flow capacity  RVB
                   •  Spherical poppets for low leakage
                   •  Internal mechanical stop limits poppet travel eliminating  RVA
                     spring solidification
              Flow
            Controls
            PC     •  “D”-Ring eliminates backup rings
                   •  All external parts have yellow zinc dichromate. This  RDH103 Series
                     coating is ideal for salt spray applications.          Relief Cartridge Valve (2 Ea.)      Body
            Controls
              Pressure
            LE     Specifications                                      Performance Curve
                                                                       Flow vs. Inlet Pressure
                    Maximum Flow      75 LPM (20 GPM)
                                                                       (Pressure rise through cartridge only)
            Elements
              Logic
                    Maximum Inlet     380 Bar (5500 PSI)                 PSI Bar       Hydraulic Oil 150 SSU @ 100°F (32 cSt)
            DC
                    Pressure                                             6000  414
                    Maximum           350 Bar (5000 PSI)                 5000  345
                    Pressure Setting
            Controls
              Directional
                                                                         4000  276
            MV
                                                                        Pressure  3000  207
                    Reseat Pressure   85% of crack pressure
                    Leakage at        5 drops/min. (.33 cc/min.)
                    150 SSU (32 cSt)  @ 75% of crack pressure
                                                                         2000 138
              Manual
            Valves
            SV
                    Cartridge Material  All parts steel. All operating
                                                                         1000  69
                                      parts hardened steel.
                                                                            0
                    Body Material     Steel                                  LPM      15.1    30.3    45.4    60.6    75.7
            Valves
              Solenoid
                                                                               0
            PV                                                              GPM        4       8  Flow (Q) 12  16      20
                    Operating Temp.   -45°C to +93.3°C (“D”-Ring)
                    Range/Seals       (-50°F to +200°F)
                                      -31.7°C to +121.1°C (Fluorocarbon)
                                      (-25°F to +250°F)
            Valves
              Proportional
            CE
                    Fluid             Mineral-based or synthetic with
                    Compatibility/    lubricating properties at viscosities
                    Viscosity         of 45 to 2000 SSU (6 to 420 cSt)
              Coils &
            Electronics
                    Filtration        ISO Code 16/13,
            BC
                                      SAE Class 4 or better
                    Approx. Weight    2.0 kg (4.5 lbs.)
            Cavities
              Bodies &
                   Note: A 6.9 Bar (100 PSI) pressure differential must be maintained
            TD
                   between the two relief valve settings.
            Data
              Technical
                                                                   PC67                        Parker Hannifin Corporation
                                                                                               Hydraulic Cartridge Systems
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