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Catalog HY15-3502/US                              Needle Valve
                   Technical Information                             Series NVH081

            CV
                   General Description                                                                      FINE
                                                                                                      ADJUSTMENT
                   Cartridge Style Needle Valve.
                   For additional information see
            Valves
              Check
            SH     Technical Tips on pages FC1-FC4.


                   Features
            Valves
              Shuttle
            LM     •  Hardened, precision ground parts for durability
                   •  Compact size for reduced space requirements                                            (2)
                   •  Fine adjustment needle option available for precise
                     adjustment                                                                                (1)
            Controls
              Load/Motor
            FC     •  Polyurethane “D”-Ring eliminates backup rings and
                     prevents hydrolysis
                                                                        (1)              (2)
                   •  Valve meters flow in either direction, but (2 to 1) is the                (2)      COARSE
                                                                                                         ADJUSTMENT
                     preferred direction for lowest leakage at shut off
                                                                                                  (1)
            Controls
              Flow
                   •  All external parts zinc plated
            PC
            Controls
              Pressure
            LE     Specifications                                      Performance Curves
                                                                       Flow vs. Inlet Pressure (Through cartridge only)
                    Rated Flow        Fixed     37.9 LPM (10 GPM)
                                      Adjusted                            PSI Bar      Hydraulic Oil 150 SSU @ 100°F (32 cSt)
              Logic
            Elements
                                                                         500 34.5
            DC                                                                      Coarse
                    Maximum Inlet     380 Bar (5500 PSI)
                    Pressure                                                      Adjustment
                                                                         400  27.6
                                                                         P)
                    Cartridge Material  All parts steel. All operating
              Directional
            Controls
                                      parts hardened steel.              300  20.7
            MV                                                                             1 Turn
                    Operating Temp.   -45°C to +93.3°C (“D”-Ring)        Pressure Drop (  200 13.8  2 Turns
                    Range/Seals       (-50°F to +200°F)                                                 3 Turns
                                      -31.7°C to +121.1°C (Fluorocarbon)
            Valves
              Manual
                                      (-25°F to +250°F)                  100  6.9
            SV
                                                                                                         Full Open
                    Fluid             Mineral-based or synthetic with
                                                                            0
                    Compatibility/    lubricating properties at viscosities  LPM       7.6    15.1    22.7    30.3    37.9
                    Viscosity         of 45 to 2000 SSU (6 to 420 cSt)         0
                                                                            GPM        2       4       6       8       10
              Solenoid
            Valves
                                                                                                Flow (Q)
            PV
                    Filtration        ISO Code 16/13,
                                                                          PSI Bar      Hydraulic Oil 150 SSU @ 100°F (32 cSt)
                                      SAE Class 4 or better
                                                                         500 34.5
                    Approx. Weight    .10 kg (.20 lbs.)
            Valves
              Proportional
                                                                         400  27.6
            CE                                                           P)
                    Cavity            No. C08-2                                  1 Turn  2 Turns  3 Turns  Full Open
                                                                         Pressure Drop (
                                      (See BC Section for more details)  300  20.7
                    Form Tool         Rougher   None
            Electronics
              Coils &
                                      Finisher  NFT08-2F                 200 13.8
            BC                                                                                               Fine
                                                                         100  6.9                         Adjustment
            Cavities
              Bodies &
                                                                            0
            TD                                                              LPM        7.6    15.1    22.7    30.3    37.9
                                                                               0
                                                                            GPM        2       4       6       8       10
                                                                                                Flow (Q)
            Data
              Technical
                                                                    FC7                        Parker Hannifin Corporation
                                                                                               Hydraulic Cartridge Systems
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