Electric Drivesand Controls Hydraulics Linear Motion andAssembly Technologies PneumaticsServiceTable of contentsContents Page Features 1 Ordering details 2 Standard types 3 Symbols 3 Functional description, cross-section 4 Technical data 5 to 6 Electrical connections, plug-in connectors 7 Integrated valve electronics for type 4WRAE 8 Characteristic curves 9 to 11 Unit dimensions 12 to 15RA 29055/08.01 Replaces: 06.98Nominal sizes 6 and 10Series 2XMaximum operating pressure 315 bar (4600 PSI) Maximum flow 42 L/min (11 GPM) (NS 6) Maximum flow 75 L/min (19.8 GPM) (NS 10)Model4WRAE 6 …-2X/G24K31/.VFeatures– Direct actuated proportional valve for controlling the direction and volume of a fl ow– Actuation by means of proportional solenoids with central thread and removable coil– For subplate mounting: Porting pattern to DIN 24 340 form A, ISO 4401 and CETOP-RP 121 HNFPA T3.5.1M R1 and ANSI B93.7 D 03Subplates to catalog sheets RE 45 052 (NS 6) or RE 45 054 (NS 10) separate order, see pages 12 to 15– Spring centred control spool– Integrated control electronics, interface A1 or F1 for type 4WRAE– Control electronics for type WRA:• Electrical amplifi er VT-VSPA2-1-1X in Eurocard format (separate order), see RE 30 112• Digital amplifi er VT-VSPD-1-1X in Eurocard format (separate order), see RE 30 123Model 4WRA 10 …-2X/G24…K4/.Vwith plug-in connectors andassociated control electronics(separate order)4/2- and 4/3-way proportional directional valves, direct actuated, without electrical position feedback Model 4WRA and 4WRAE 1/162/16 Bosch Rexroth Corp. | Industrial Hydraulics 4WRA and 4WAE | RA 29055/08.01 Ordering details1)Other types of electrical protection on request2)Only for NS 6: for version “J” = sea water resistant only state “K31”SymbolsProportional directional valve without integrated Type WRA…Type WRA…Proportional directional valve with integratedNS 6Model Material no. 4WRA 6 E07-2X/G24K4/V00910780 4WRA 6 E15-2X/G24K4/V00904438 4WRA 6 E30-2X/G24K4/V00904439 4WRA 6 E1-15-2X/G24K4/V00954053 4WRA 6 E1-30-2X/G24K4/V00947835 4WRA 6 EA15-2X/G24K4/V00954054 4WRA 6 EA30-2X/G24K4/V00954055 4WRA 6 W07-2X/G24K4/V00928412 4WRA 6 W15-2X/G24K4/V00954056 4WRA 6 W30-2X/G24K4/V00954407 4WRA 6 W1-15-2X/G24K4/V00954057 4WRA 6 W1-30-2X/G24K4/V00954058 4WRA 6 WA15-2X/G24K4/V00954059 4WRA 6 WA30-2X/G24K4/V00935535 4WRAE 6 E07-2X/G24K31/A1V00954069 4WRAE 6 E15-2X/G24K31/A1V00954070 4WRAE 6 E30-2X/G24K31/A1V00954071 4WRAE 6 E1-15-2X/G24K31/A1V00954072 4WRAE 6 E1-30-2X/G24K31/A1V00954073 4WRAE 6 EA15-2X/G24K31/A1V00954074 4WRAE 6 EA30-2X/G24K31/A1V00954075 4WRAE 6 W07-2X/G24K31/A1V00954076 4WRAE 6 W15-2X/G24K31/A1V00954077 4WRAE 6 W30-2X/G24K31/A1V00954078 4WRAE 6 W1-15-2X/G24K31/A1V00954079 4WRAE 6 W1-30-2X/G24K31/A1V00954080 4WRAE 6 WA15-2X/G24K31/A1V00954081 4WRAE 6 WA30-2X/G24K31/A1V00954082NS 10Model Material no. 4WRA 10 E30-2X/G24K4/V00954060 4WRA 10 E60-2X/G24K4/V00954061 4WRA 10 E1-30-2X/G24K4/V00954062 4WRA 10 E1-60-2X/G24K4/V00954063 4WRA 10 EA30-2X/G24K4/V00954408 4WRA 10 EA60-2X/G24K4/V00954064 4WRA 10 W30-2X/G24K4/V00577424 4WRA 10 W60-2X/G24K4/V00954065 4WRA 10 W1-30-2X/G24K4/V00954066 4WRA 10 W1-60-2X/G24K4/V00954067 4WRA 10 WA30-2X/G24K4/V00954068 4WRA 10 WA60-2X/G24K4/V00952054 4WRAE 10 E30-2X/G24K31/A1V00933793 4WRAE 10 E60-2X/G24K31/A1V00954083 4WRAE 10 E1-30-2X/G24K31/A1V00954084 4WRAE 10 E1-60-2X/G24K31/A1V00954409 4WRAE 10 EA30-2X/G24K31/A1V00954085 4WRAE 10 EA60-2X/G24K31/A1V00954086 4WRAE 10 W30-2X/G24K31/A1V00954087 4WRAE 10 W60-2X/G24K31/A1V00954088 4WRAE 10 W1-30-2X/G24K31/A1V00953496 4WRAE 10 W1-60-2X/G24K31/A1V00954089 4WRAE 10 WA30-2X/G24K31/A1V00954090 4WRAE 10 WA60-2X/G24K31/A1V00954091Standard typesRA 29055/08.01 | 4WRA and 4WAE Industrial Hydraulics | Bosch Rexroth Corp.3/16Functional description, cross-sectionThe 4/2- and 4/3-way proportional directional valves are designed as direct operated components for subplate mounting. They are actuated by means of proportional solenoids with central thread and removable coil. The solenoids are controlled either by external control electronics (type WRA) or by integrated control electronics (type WRAE).Design:The valves basically consist of:– Housing (1) with mounting surface– Control spool (2) with compression springs (3 and 4)– Solenoids (5 and 6) with central thread– Optional integrated valve electronics (7)Valve with 2 spool positions:(Type 4WRA…A …)In principle, the funtion of this valve version corresponds to that of the valve with 3 spool positions. However, the valves with 2 spool positions are only fi tted with solenoid “a”. Instead of the 2nd proportional solenoid a plug (8.1) is fi tted for NS 6 or for NS 10 a cover (8.2).Functional description:– With the solenoids (5 and 6) de-energized, the control spool (2) is held in the central position by compression springs (3 and 4)– Direct actuation of the control spool (2) by energizing a proportional solenoidE.g. controlling of solenoid “b” (6)→ The control spool (2) is moved to the left in proportion to the electrical input signal→ Connection form P to A and B to T via orifi ce-like cross sections with progressive fl ow characteristics – De-energization of the solenoid (6) → The control spool (2) is returned to the central position by compression spring (3)Note for type 4WRA 6…-2X/…:Draining of the tank line is to be avoided. With the appropriate installation conditions, a back pressure valve is to be installed (back pressure approx 2 bar).4/16 Bosch Rexroth Corp. | Industrial Hydraulics 4WRA and 4WAE | RA 29055/08.01RA 29055/08.01 | 4WRA and 4WAE Industrial Hydraulics | Bosch Rexroth Corp.5/16 Technical data (for applications outside these parameters, please consult us!)GeneralValve type WRA WRAE Installation optional, preferably horizontalStorage temperature range °C (°F) – 20 to + 80 (-4 to 176)Ambient temperature range °C (°F) – 20 to + 70 (-4 to 158) – 20 to + 50 (-4 to 122) Weight NS 6 kg (lbs) 2.0 (4.4) 2.2 (4.8)NS 10 kg (lbs) 6.6 (14.5) 6.8 (15)Hydraulic (measured at p = 100 bar, with HLP46 at 40 °C ± 5 °C)Operating pressure Ports A, B, P bar (PSI) up to 315 (4600)Port T bar (PSI) up to 210 (3000)NS 6 L/min (GPM) 7, 15 and 26 (1.85, 3.96 and 6.87)Nominal fl ow qV nomat Δp = 10 bar NS 10 L/min (GPM)30 and 60 (7.92 amd 15.85)Max. permissible fl ow NS 6 L/min (GPM)42 (11) [80 (21) with double fl ow](GPM)75 (19.8) [140 (37) with double fl ow]10L/minNSPressure fl uid Mineral oil (HL, HLP) to DIN 51 524other pressure fl uids on request!Pressure fl uid temperature range °C (°F) – 20 to + 80 (-4 to 176) [preferably + 40 to + 50 (104 to 122)] Viscosity range mm2/s (SUS) 20 to 380 (97 to 1766) [preferably 30 to 46 (141 to 210)] Degree of contamination Maximum permissible degree Filter with a minimumof contamination of the retention rate ofp ressure fl uid is to NAS 1638 β≥ 75 is recommendedxclass 9 x = 10≤ 5Hysteresis %Reversal error % ≤ 1Response sensitivity % ≤ 0.5Technical data (for applications outside these parameters, please consult us!)Electrical Valve type WRA 1)WRAEVoltage typeDC Command value signal Voltage input …A1“ V ± 10 ± 10with type WRAE Current input …F1“ mA 4 to 20 4 to 20Max. current per solenoidA 2.5 2.5Solenoid coilCold value 20 °CΩ2 2resistance Max. warm value Ω 33Duty % 100Max. coil temperature 2) °C (°F) Up to 150 (302)Electrical connections WRA With component plug to DIN EN 175 301-803 and ISO 4400see page 7 Plug-in connector to DIN EN 175 301-803 and ISO 4400 3) WRAE With component plug to E DIN 43 563-AM6-3Plug-in connector E DIN 43 563-BF6-3/Pg11 3)Valve protection to DIN 40 050IP 65 with fi tted and locked plug-in connectorControl electronics For WRA Amplifi er in Eurocard format 3) VT-VSPA2-1-2X/… see RE 30 110 Amplifi er in Modular format VT-MSPA2-1-1X/… see RE 30 228Digital amplifi er in Eurocard format 3) VT-VSPD-1-2X see RE 30 523For WRAEIntegrated into the valves, see page 8 Analogue command value module V T- SWMA-1-1X/... see RE 29 902 Analogue command value module V T-SWMKA-1-1X/... see RE 29 903 Analogue command value module V T-SWKA-1-1X/... see RE 30 255Digital command value module V T HACD-1-1X ... see RE 30 143Supply voltage Nominal voltage VDC 244WRAE, Lower limiting value V 21 / 22194WRA 1) Upper limiting valueV 35Amplfi er currentI max A 1.81.8Note: For details regarding the environmental simulation test covering EMC (electro-magnetic compatibility),climate and mechanical loading see RE 29 055-U (declaration regarding environmental compatibility).1)With Bosch Rexroth AG control electronics2)Due to the occuring surface temperature of the solenoidcoils, the European Standards EN 563 and EN 982 must be taken into account!3)Separate order6/16 Bosch Rexroth Corp. | Industrial Hydraulics 4WRA and 4WAE | RA 29055/08.01Electrical connection, plug-in connectors For type WRA(without integrated control electronics – not for version “J ” = sea water resistant) Connection on component plug Connection on plug-in connectorPlug-in connectorCECC 75 301-803-A002FA-H3D08-G to DIN EN 175 301-803 and ISO 4400Solenoid a , color graySeparate order under material no. 00074683Solenoid b , color blackSeparate order under material no. 00074684For type WRAE(with integrated electronics and for version “J ” = sea water resistant)For pin allocation, see block circuit diagram on page 8Plug-in connector to E DIN 43 563-BF6-3/Pg11Separate order under material no. 00021267 (plastic version)RA 29055/08.01 | 4WRA and 4WAE Industrial Hydraulics | Bosch Rexroth Corp. 7/16Block circuit diagram/terminal allocation of the integrated control electronicsCom. value: Positive command value (0 to 10 V or 12 to 20 mA) at D and reference potential to E causes fl ow from P to A and B to T.Negative command value (0 to – 10 V or 12 to 4 mA) at D and reference potential to E causes fl ow from P to B and A to T.For valves with a solenoid on side …a“ (spool variant EA and WA ) reference potential to E and positive command value at D (NS 6: 4 to 20 mA and NS 10: 12 to 20 mA) causes fl ow from P to B and A to T.Connection cable: Recommendation: – up to 25 m cable length type LiYCY 5 x 0.75 mm 2 (80 ft)– up to 50 m cable length type LiYCY 5 x 1.0 mm 2 (160 ft) External diameter 6.5 to 11 mm (0.26 in to 0.44 in) Connect screen to PE only on the supply side.1)Slots C and F must not be connected!Integrated electronics(see below)Pin allocation of the component plugIntegrated control electronics for type WRAE2) PE is connected to the cooling body and the valve housing 3)Protective conductor screwed to the valve housing and cover4) Ramp can be externally adjusted from 0 to 2,5 s; the same applies for T up and T down 5) Output stages current regualted6)Low voltage detection is not carried out for component type 4WRAE 10-2X.4)SlotSignalSupply voltage A B 24 VDC (19 to 35 VDC)GND C n.c. 1)Differential amplifi er inputD E com. value (± 10 V / 4 to 20 mA)ref. potential Fn.c. 1)8/16 Bosch Rexroth Corp. | Industrial Hydraulics 4WRA and 4WAE | RA 29055/08.010506070908010030 (7.9)20 (5.3)10 (2.6)5432130404050 2050607090801005432130402030 20 1050607090801005432130402030 20 10 20304050607080901005432130 (7.9)20 (5.3)10 (2.6)40 (10.6)50 (13.2)60 (15.9)70 (18.5)203040506070809010032.45120 (5.3)40 (10.6)60 (13.2)80 (21.1)100 (26.4)Characteristic curves – measured with HLP46 at 40 °C ± 5 °C (104 °F ±41 °F) NS 6Command value in % →F l o w i n L /m i n (G P M ) →7 L/min nominal fl ow at 10 bar valve pressure differential (1.8 GPM at 145 PSI)Command value in % →F l o w i n L /m i n (G P M ) →15 L/min nominal fl ow at 10 bar valve pressure differential (3.9 GPM at 145 PSI)Command value in % →F l o w i n L /m i n (G P M ) →30 L/min nominal fl ow at 10 bar valve pressure differential (7.9 GPM at 145 PSI)1 Δp = 10 bar constant2 Δp = 20 bar constant3 Δp = 30 bar constant4 Δp = 50 bar constant5 Δp = 100 bar constantΔp = Valve pressure differential (inlet pressure p P minus loadpressure p L and minus return pressure p T )30 L/min nominal fl ow at 10 bar valve pressure differential (7.9 GPM at 145 PSI)60 L/min nominal fl ow at 10 bar valve pressure differential (13.2 GPM at 145 PSI)Command value in % →F l o w i n L /m i n (G P M ) →1 Δp = 10 bar (145 PSI) constant2 Δp = 20 bar (290 PSI) constant3 Δp = 30 bar (435 PSI) constant4 Δp = 50 bar (725 PSI) constant 5Δp = 100 bar (1450 PSI) constantΔp = Valve pressure differential (inlet pressure p P minus loadpressure p L and minus return pressure p T )Command value in % →F l o w i n L /m i n (G P M ) →Characteristic curves – measured with HLP46 at 40 °C ± 5 °C (104 °F ±41 °F)NS 10RA 29055/08.01 | 4WRA and 4WAE Industrial Hydraulics | Bosch Rexroth Corp. 9/16501001502502003004321567(725) (1450) (2175) (2900) (3625) (4350)405030(7.9)20(5.3)10(2.6)501001502502003004321567(725) (1450) (2175) (2900) (3625) (4350)30(7.9)20(5.3)10(2.6)50100150250200300432567302010(725) (1450) (2175) (2900) (3625) (4350)100908070605040302010040801201602000–1000 – 750 – 500 – 25020406080Characteristic curves – measured with HLP46 at 40 °C ± 5 °C (104 °F ±41 °F) NS 6Performance limit, nominal fl ow 7 L/min (1.8 GPM)Performance limit, nominal fl ow 15 L/min (3.9 GPM)Performance limit, nominal fl ow 30 L/min (7.9 GPM)F l o w i n L /m i n (G P M ) →1 Command value = 40 %2 Command value = 50 %3 Command value = 60 %4 Command value= 70 %5 Command value = 80 %6 Command value = 90 %7 Command value = 100 %Valve pressure differential in bar (PSI) →Transient functions with stepped form of electrical input signals Time in ms →Signal change in %Types WRA and WRAES t r o k e i n % →F l o w i n L /m i n (G P M ) →Valve pressure differential in bar (PSI) →F l o w i n L /m i n (G P M ) →Valve pressure differential in bar (PSI) →If the performance limits are exceeded then fl ow forces occur which lead to uncontrolled spool movements.10/16 Bosch Rexroth Corp. | Industrial Hydraulics 4WRA and 4WAE | RA 29055/08.01501000150250200300765432130 (7.9)20 (5.3)10 (2.6)40 (10.6)50 (13.2)60 (15.9)70 (18.5)(725) (1450) (2175) (2900) (3625) (4350)80 (21.1)90 (23.8)100 (26.4)5010001502502003007654321(725) (1450) (2175) (2900) (3625) (4350)3020 10 40 50 60 70Characteristic curves – measured with HLP46 at 40 °C ± 5 °C (104 °F ±41 °F) NS 10Performance limit, nominal fl ow 30 L/min (7.9 GPM)Performance limit, nominal fl ow 60 L/min (15.9 GPM)F l o w i n L /m i n (G P M ) →Valve pressure differential in bar (PSI) →F l o w i n L /m i n (G P M ) →Valve pressure differential in bar (PSI) →Transient functions with stepped form of electrical input signalsTime in ms →Signal change in %1 Command value = 40 %2 Command value = 50 %3 Command value = 60 %4 Command value = 70 %5 Command value = 80 %6 Command value = 90 %7 Command value = 100 %I f the performance limits are exceeded then fl ow forces occur which lead to uncontrolled spool movements.Unit dimensions: NS 6 – dimensions in millimeters (inches) Type 4WRA1 Valve housing2Proportional solenoid “a”3Proportional solenoid “b”4.1Plug-in connector “A”, colour grey, separate order,see page 74.2Plug-in connector “B”, colour black, separate order,see page 75 Name plate6R-ring 9.81 x 1.5 x 1.78 (ports A, B, P, T)7Plug for valves with one solenoid(2 switched positions, versions EA or WA)8Space required to remove the plug-in connector9Machined valve mounting surface,position of the ports to DIN 24 340 form A,ISO 4401 and CETOP-RP 121 H Subplates to catalogue sheet RE 45 052 and valve fi xing screws have to be ordered separately.Subplates:G341/01, G1/4 (SAE-4; 7/16-20)G342/01, G3/8 (SAE-6; 9/16-18)G502/01, G1/2 (SAE-8; 3/4-16)Valve fi xing screws: 4 of M5 x 50 DIN 912-10.9(10-24 UNC x 2”); MA= 8.9 Nm (6.56 lb-ft)Unit dimensions: NS 6 – dimensions in millimeters (inches) Subplates to catalogue sheet RE 45 052 and valve fi xing screws have to be ordered separately.Subplates: G341/01, G1/4 (SAE-4; 7/16-20) G342/01, G3/8 (SAE-6; 9/16-18) G502/01, G1/2 (SAE-8; 3/4-16)Valve fi xing screws: 4 of M5 x 50 DIN 912-10.9 (10-24 UNC x 2”); M A = 8.9 Nm (6.56 lb-ft)1 Valve housing2 Proportional solenoid “a”3 Proportional solenoid “b”4 Plug-in connector to E DIN 43 563-BF6-3/Pg11,separate order, see page 7 5 Name plate6 R-ring 9.81 x 1.5 x 1.78 (ports A, B, P, T)7 Plug for valves with one solenoid(2 switched positions, versions EA or WA ) 8 Integrated control electronics9 Space required for the connection cable and to removethe plug-in connector 10 Machined valve mounting surface,position of the ports to DIN 24 340 form A,ISO 4401 and CETOP-RP 121 HTypes 4WRAE .../...K31/ (V)Required surface fi nish ofmating pieceUnit dimensions: NS 10 – dimensions in mm (inches) 1 Valve housing2Proportional solenoid “a”3Proportional solenoid “b”4.1Plug-in connector “A”, color gray, separate order,see page 74.2Plug-in connector “B”, color black, separate order,see page 75 Name plate6Valve bleed screwNote: The valves are bled before delivery.7R-ring 13.0 x 1.6 x 2.0 (ports A, B, P, T)8Plug for valves with one solenoid(2 switched positions, versions EA or WA)9Space required to remove the plug-in connector 10Machined valve mounting surface,position of the ports to DIN 24 340 form A,ISO 4401 and CETOP-RP 121 H Subplates to catalogue sheet RE 45 054 and valve fi xing screws have to be ordered separately.Subplates:G66/01, G3/8 (SAE-6; 9/26-18)G67/01, G1/2 (SAE-8; 3/4-16)G534/01, G3/4 (SAE-12; 1-1/16-12) Valve fi xing screws: 4 of M6 x 40 DIN 912-10.9(1/4-20 UNC x 1-1/2”); MA= 15.5 Nm (11.4 lb-ft)Type 4WRAUnit dimensions: NS 10 – dimensions in mm (inches)Subplates to catalogue sheet RE 45 054 and valve fi xing screws have to be ordered separately.Subplates: G66/01, G3/8 (SAE-6; 9/26-18) G67/01, G1/2 (SAE-8; 3/4-16) G534/01, G3/4 (SAE-12; 1-1/16-12)Valve fi xing screws: 4 of M6 x 40 DIN 912-10.9 (1/4-20 UNC x 1-1/2”); M A = 15.5 Nm (11.4 lb-ft)1 Valve housing2 Proportional solenoid “a”3 Proportional solenoid “b”4 Plug-in connector to E DIN 43 563-BF6-3/Pg11,separate order, see page 7 5 Name plate6 Valve bleed screwNote: The valves are bled before delivery. 7 R-ring 13.0 x 1.6 x 2.0 (ports A, B, P, T) 8 Cover for valves with one solenoid(2 switched positions, versions EA or WA ) 9 Integrated valve electronics10 Space required for the connection cable and to removethe plug-in connector 11 Machined valve mounting surface,position of the ports to DIN 24 340 form A,ISO 4401 and CETOP-RP 121 HType 4WRAENotesBosch Rexroth Corp. Industrial Hydraulics2315 City Line Road Bethlehem, PA 18017-2131 USATelephone (610) 684-8300 Facsimile (610) 694-8467 © This document, as well as the data, specifi cations and other information set forth in it, are the exclusive property of Bosch Rexroth Corporation. Without their consent it may not be reproduced or given to third parties.The data specifi ed above only serve to describe the product. No statements concerning a certain condition or suitability for a certain application can be derived from our information. The information given does not release the user from the obligation of own judgment andverifi cation. It must be remembered that our products are subject to a natural process of wear and aging.。