Page 47 - Parker - Pressure Control Valves
P. 47

Catalog HY15-3502/US                              Pilot Operated Relief Valve
                   Technical Information                             Series RAH201

            CV
                   General Description
                   Pilot Operated Spool-Type Relief Valve. For additional
                   information see Technical Tips on pages PC1-PC6.
              Check
            Valves
            SH
                   Features
                   •  Low override curve
            Valves
              Shuttle
            LM     •  Ball-type pilot for added stability
                   •  High accuracy - pilot operated design
                   •  Hardened, precision ground parts for durability                           Tank
                   •  Compact size for reduced space requirements                                 (2)
            Controls
              Load/Motor
            FC
                   •  All external parts have yellow zinc dichromate. This
                     coating is ideal for salt spray applications.      In               Out       Pressure
                                                                        (1)              (2)           (1)
            Controls
              Flow
            PC

                   Specifications
            Controls
              Pressure
            LE      Rated Flow        379 LPM (100 GPM)                Performance Curve
                                                                       Flow vs. Inlet Pressure
                    Maximum Inlet     380 Bar (5500 PSI)
                    Pressure                                           (Pressure rise through cartridge only)
            Elements
              Logic
                                                                         PSI Bar       Hydraulic Oil 150 SSU @ 100°F (32 cSt)
            DC      Maximum           350 Bar (5000 PSI)                 6000  414
                    Pressure Setting
                                                                         5000  345
                    Maximum Tank      350 Bar (5000 PSI)
                    Pressure                                             4000  276
            Controls
              Directional
            MV
                                                                        Pressure  3000  207
                    Reseat Pressure   80% of crack pressure
                    Leakage at        5 cc per 100 PSI (6.8 Bar) setting
                                                                         2000 138
                    150 SSU (32 cSt)
              Manual
            Valves
            SV
                                                                         1000  69
                    Cartridge Material  All parts steel. All operating
                                      parts hardened steel.
                                                                            0
                                                                            LPM        76     151     227     303     379
            Valves
              Solenoid
                    Operating Temp.   -40°C to +93.3°C (Nitrile)            GPM 0      20      40      60      80     100
            PV      Range/Seals       (-40°F to +200°F)                                         Flow (Q)
                                      -31.7°C to +121.1°C (Fluorocarbon)
                                      (-25°F to +250°F)
              Proportional
                    Fluid             Mineral-based or synthetic with
            Valves
            CE      Compatibility/    lubricating properties at viscosities
                    Viscosity         of 45 to 2000 SSU (6 to 420 cSt)
                    Filtration        ISO Code 16/13,
                                      SAE Class 4 or better
            Electronics
              Coils &
            BC
                    Approx. Weight    0.9 kg (2.0 lbs.)
                    Cavity            C20-2
              Bodies &
            Cavities
                                      (See BC Section for more details)
            TD
                    Form Tool         Rougher   None
                                      Finisher  NFT20-2F
            Data
              Technical
                                                                   PC45                        Parker Hannifin Corporation
                                                                                               Hydraulic Cartridge Systems
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