Vickers® Proportional Pressure Relief Valve KBCG5 …

1 vickers Proportional Pressure Relief ValveTechnical CatalogKBCG5-3 10 Design2 eaton VickersProportional Pressure Relief Valve KBCG5 -3, V-VLPO-MC012-E November 2009 ContentsIntroductionGeneral Description ..3 Basic Characteristics ..3 Features and Benefits ..3 Typical Section ..3 Functional Symbols ..3 Model 10 Application 12 This product has been designedand tested to meet specific standards outlined in theEuropean Electromagnetic CompatibilityDirective (EMC).For instructions on installation requirementsto achieve effective protection levels, seethis leaflet and the Installation WiringPractices for vickers Electronic Productsleaflet 2468.

2 Wiring practices relevant tothis Directive are indicated byElectromagnetic Compatibility (EMC).3 eaton VickersProportional Pressure Relief Valve KBCG5 -3, V-VLPO-MC012-E November 2009 IntroductionGeneral DescriptionThese compact two-stagepressure Relief valves offerextensive applicationpossibilities through theirability to control the pressuresetting in proportion to anapplied electrical integral amplifier allowsthe Pressure to be controlledfrom a low power commandsignal: either a voltage orcurrent command.

3 The amplifier is mounted in arobust metal housing andelectrical connections are viaan industry standard 7-pinplug. Factory-setadjustments ensure highreproducibility CharacteristicsMax. pressure350 bar (5000 psi)Max. flow rate40 L/min ( USgpm)Mounting face to ISO 6264-03-04 Note: Port B must beblocked by the mountinginterface - see installationdiagram for port A is used for pilot drainflow on external drain models shouldbe selected for applicationswhere a high T port pressureis required (up to 210 bar) orwhere T port pressuredisturbances are and Benefits Remote electricalproportional control ofpressure from a choice offive Pressure ranges.

4 Excellent repeatability andstable performance. Low installed cost andspace requirement fromhigh power/size ratios. On-board rampadjustment. Model code selectableramp SectionFunctional Symbols4 eaton VickersProportional Pressure Relief Valve KBCG5 -3, V-VLPO-MC012-E November 2009 Model CodeVa l v e Ty p eKB Proportional Valve withintegral amplifier, B seriesC o n t r o l Ty p eC Pressure Relief ValveM o u n t i n gG Subplate mountedO p e r a t i o n5 Pilot operatedMounting Inte r fa c e3 ISO 6264-03-04P r e s s u r e R a t i n g40 40 bar100 100 bar160 160 bar250 250 bar350 350 barD a m p e rD Standard DamperM a n u a l O v e rr i d eZ No manual overrideD rain OptionT Internal drainBlank External drainAmplifier Control SignalM1 10 V control signalM2 4 to 20 mA control signalRamp Option4 Fast 5 Damped Amplifier Ty p eA

5 StandardE l e c t r i c a l C o n n e c t i o nPC7 7 pin connector,without plug suppliedPE7 7 pin connector, withplug suppliedPH7 As PE7 but with pin 'C'used for enable signalPR7 As PC7 but with pin 'C'used for enable signalCoil IdentificationH 24 VDCT p o r t p r e s s u r e1 10 bar. Internal drain (T models)7 210 bar. External drain(non-T models)Design Number 1* series. Subject to change16151413121110987654321 WARNINGV alves with integralamplifiers aresupplied with or without themetal 7-pin vickers TM plug, part no.

6 934939, must becorrectly fitted to ensure thatEMC and IP67 ratings areachieved. The plug retaining nut mustbe tightened with a torqueof 2-2,5 Nm ( lbf ft) toeffect a proper seal. Typically 160 ms for 0-100%/100-0% signal(system dependent) Typically 420 ms for 0-100%/100-0% signal(system dependent)Standard test conditions are with antiwear hydraulic oil at 36 cSt (168 SUS) and 50 C (122 F)Maximum pressures:Internal drainExternal drainModel code [9] = TModel code [9] = blankPort P350 bar (5000 psi)350 bar (5000 psi)Port T10 bar (145 psi)210 bar (3000 psi)Port A* 10 bar (145 psi)*External drain portRated flow at p = 5 bar (73 psi).

7 KBCG5V-340 L/min ( USgpm)Pilot flow0,4 -1,0 L/min ( - USgpm)Coil or amplifier rating24V x 36W max. (22 to 34V including 10% peak-to-peak max. ripple)Command signal:Volts (see model code - [10] M1)0 to +10V or 0 to -10 VInput impedance47 k Common mode voltage to pin B 4 VCurrent (see model code - [10] M2) 4 to 20 mAInput impedance 100 Valve enable signal:Enable> (36V max)Disable < impedance 36 k 7-pin plug connectorPin DescriptionAPower supply positive (+)BPower supply 0V and current command returnCValve enable (PH7 & PR7)DCommand signal (+V or current in)ECommand signal (-V or current GND)FOutput monitor GProtective groundView of pins of fixed halfElectromagnetic compatibility (EMC).

8 Emission EN 50081-2 Immunity (10 V/m) EN 50082-2 Monitor signal (pin F) V/amp solenoid currentOutput impedance10 k Pressure gain See graphsFactory setting: maximum with 100% command signalPressure override when relieving and when off-loadSee graphsLinearity, between 10% and 100% of rated Pressure <5%Hysteresis<5% (with factory-set dither)Repeatability+/-2% of rated pressureReproducibility, Valve -to- Valve (at factory settings): Pressure at 100% command signal+/-3% of rated pressureProtection.

9 ElectricalReverse polarity protectedEnvironmentalIE C60529, Class IP67 Mass (weight)3,45 kg ( )Mounting attitudeNo restriction, provided that the Valve is kept full of fluid through port VickersProportional Pressure Relief Valve KBCG5 -3, V-VLPO-MC012-E November 2009 Operating Data6 eaton VickersProportional Pressure Relief Valve KBCG5 -3, V-VLPO-MC012-E November 2009 Performance DataData is typical with oil at 36 cSt (168 SUS) and at 50 C (122 F)7 eaton VickersProportional Pressure Relief Valve KBCG5 -3, V-VLPO-MC012-E November 2009 Performance Data8 eaton VickersProportional Pressure Relief Valve KBCG5 -3, V-VLPO-MC012-E November 2009 Performance DataMODEL CODESTEP SIZE.

10 RESPONSE TIME Pressure DEMAND(ms)M*-40-100%/100-0%16025 - 75%/75-25%10010-90%/90-10%140M*-50-100%/ 100-0%42025-75%/75-25%26010-90%/90-10%36 0 Step ResponseThe step response data inthe attached table should beused as a guideline only asresponse time in anyapplication will be systemdependant. The response will besignificantly influenced bythe Valve operating flow rateas well as the volume of oilbeing VickersProportional Pressure Relief Valve KBCG5 -3, V-VLPO-MC012-E November 2009 InstallationDimensionsWARNINGV alves with integralamplifiers aresupplied with or without themetal 7-pin vickers TM plug, part no.