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3DRE(M) type three-way proportional pressure reducing valve

Series of pictures

Valves of types 3DRE(M) and 3DRE(M)E are electrically pilot operated 3-way pressure reducing valves with pres-sure relief function for the actuator. They are used to reduce a system pressure.

NG: 10 and 16

Max pressure: 315 bar

Max flow: 125L/min(size 10)  300L/min(size 16)

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Serial Advantage

  • Pilot operated valve for reducing a pressure (P to A) and limiting (A to T) a system pressure

  • Actuation by proportional solenoid

  • Maximum pressure relief function, optional

  • Valve and control electronics from a single source

  • Control electronics for type 3DRE(M):

    - Analogue amplifier type VT-VSPA1(K)-1in Euro-card format

    - Digital amplifier type VT-VSPD-1 in Euro-card format

    - Analogue amplifier type VT 11131 of modular design

  • Linear command value/pressure characteristic curve

  • Integrated electronics (OBE) with type 3DRE(M)E:

    - Low manufacturing tolerance of the command value/pressure characteristic curve

    - Ramp times can be adjusted separately for pressure build-up

Technical Specification

General

Size1016
Weight3DRE and 3DREMkg7.710.2
3DREE   and 3DREMEkg7.810.3
Installation   orientationOptional, preferably   horizontal
Storage   temperature range-20 to +80
Ambient   temperature range3DRE and 3DREM-20 to +70
3DREE   and 3DREME-20 to +50








Hydraulic  ( measured with HLP46;ϑoil =40℃ ±5℃ and p = 100bar )
Size1016
Max.   operating pressurePorts P, A and Xbar315P and X=315;A=250
Port   Ybarseparately and at zero   pressure to tank
Max.   set pressure  in channel APressure stage50barbar5050
Pressure   stage100barbar100100
Pressure   stage200barbar200200
Pressure   stage250barbar
250
Pressure   stage315barbar315
Min.   set pressure channel A at zero command valuesee characteristic   curves
Maximum   pressure relief function (infinitely adjustable)Pressure stage 50barbarPressure adjustment   range30 to 70Factor settingto 70bar
Pressure   stage 100barbar50 to 130to 130bar
Pressure   stage 200barbar90 to 230to 230bar
Pressure   stage 250barbar100 to 250to 250bar
Pressure   stage 315 bar ( size 10 only )bar150 to 350to 350bar
Max.   permissible flowL/min125300
Pilot   oil flowL/min1
Hydraulic   fluidMineral oil ( HL, HLP   ) to DIN 51524; further hydraulic fluids on enquiry!
Hydraulic   fluid temperature range-20 to +70
Viscosity   rangemm2 /s20 to 380
Degree   of contaminationMaximum permissible   degree of fluid contamination:
    Class 9.NAS 1638 or 20/18/15, ISO4406
Hysteresis                                    %±2 of max. set   pressure
Repeatability                                 %< ±2 of max. set   pressure
Linearity                                     %±3.5 of max. set   pressure
Manufacturing tolerance of command value/pressure char. curve,   referred to hysteresis curve, increasing pressure3DRE and 3DREM   %±2.5 of max. set   pressure
3DREE   and 3DREME %±1.5 of max. set   pressure
Switching   timems100 to 200 (depending   on system)
Electrical
Supply  voltage
V24 V DC
Min.  control current
mA100
Max.  control current3DRE and 3DREMmA1600
3DREE and  3DREMEmA1440 to 1760
Solenoid  coil resistanceCold value at 20 ° C5.4
Max. hot  value7.8
Duty  cycle                                                           %100
Electrical connection3DRE and  3DREMWith component plug to DIN EN  175301-803
Cable  socket to DIN EN 175301-803
3DREE and 3DREMEWith component plug to E DIN EN  175201-804
Cable  socket to DIN EN 175201-804
Type  of protection of the valve to EN 60529Ip65 with cable socket mounted and  locked
Control  electronics
Integrated  electronics (OBE) with types 3DREE and 3DREMEIntegrated in the valve
External  control electronics for types 3DRE and 3DREMAmplifier in Euro-card  formatanalogueVT-VSPA1(K)-1
digitalVT-VSPD-1
Amplifier  of modular designanalogueVT 11131


Application Industry

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