Proportional pressure reducing valve of 3-way design

Transcription

1 Courtesy of CM/Flodyne/Hydradyne Motion Control Hydraulic neumatic Electrical Mechanical (800) Electric Drives and Controls Hydraulics Linear Motion and ssembly echnologies neumatics Service roportional pressure reducing valve of 3-way design Model 3DRE and 3DREE Nominal size 6 Component series 2X Maximum operating pressure 100 bar (1450 SI) Maximum flow 15 L/min (3.96 GM) able of contents Contents age Features 1 Ordering details 2 Standard types 2 Symbols 2 Function, section 3 echnical data 4, 5 Electrical connections, plug-in connectors 5 Control electronics 5, 6 Characteristic curves 7 Unit dimensions 8, 9, 10 hrottle insert 10 3DRE 6.-2X/..EG24N9K4... with plug-in connectors and associated control electronics (separate order) Features R 29184/12.02 Replaces: /12 3DREE 6.-2X/..EG24N9K31... with integrated control electronics Directly controlled proportional valves for the control of the pressure and direction of a fl ow Operated via proportional solenoids with central thread and removable coil For subplate mounting: orting pattern to DIN part 2 Form, ISO 4401 and CEO-R121H Subplates to catalogue sheet RE (separate order), see pages 8 to 10 Hand override, optional Spring centred control spool ype 3DREE with integrated control electronics, interface 1 External control electronics for type 3DRE: nalogue amplifi er type V-VS2-1-2X/ in Euro - card format (separate order), see page 5 Digital amplifi er type V-VSD-1-2X/ in Eurocard format (separate order), see page 5 Electrical amplifi er type V of modular design (separate order), see page 5

2 2/12 osch Rexroth Corp. Industrial Hydraulics 3 DRE / 3DREE R 29184/12.02 Courtesy of CM/Flodyne/Hydradyne Motion Control Hydraulic neumatic Electrical Mechanical (800) Ordering details For external control electronics = No code With integrated control electronics = E Nominal size 6 = 6 Symbols (simplified) a Standard types ype 3DRE 3DRE 6-2X/16EG24K4/M 3DRE 6-2X/25EG24K4/M 3DRE 6-2X/45EG24K4/M 3DRE 6 C-2X/16EG24K4/M 3DRE 6 C-2X/25EG24K4/M 3DRE 6 C-2X/45EG24K4/M Symbols = = = C Series 20 to 29 = 2X (20 to 29: unchanged installation and connection dimensions) ressure stage 16 bar (232 SI) = 16 ressure stage 25 bar (362.6 SI) = 25 ressure stage 45 bar (652.7 SI) = 45 1) Suitable for mineral oil (HL, HL) to DIN ) For version J = sea water resistance only state K31 3) For version J = N instead of N9 Special types of electrical protection on request! ype 3DRE.. 6 2X/...E (detailed) 3DRE 6 2X / E G24 / ype 3DRE.. 6 2X/...E (detailed) a a b b b Material No. R R R R R R E = G24 = ype 3DREE 3DREE 6-2X/16EG24K31/1M 3DREE 6-2X/25EG24K31/1M 3DREE 6-2X/45EG24K31/1M 3DREE 6 C-2X/16EG24K31/1M 3DREE 6 C-2X/25EG24K31/1M 3DREE 6 C-2X/45EG24K31/1M M = 1) V = Further details in clear text NR seals FKM seals No code = For 3DRE For 3DREE 1 = Com. value input ±10 V Electrical connections For 3DRE K4 = 2) Without plug-in connector, with component plug to DIN EN lug-in connector - separate order, see page 5 Fow 3DREE K31 = 2) Without plug-in connector, with component plug to DIN EN lug-in connector - separate order, see page 5 No code = J = No code = N9 = 3) Without special protection Sea water resistant Without hand override With protected hand override Supply voltage for the control electronics 24 V DC roportional solenoid with removable coil ype 3DRE.. 6 C 2X/...E (detailed) a Example of a valve with integrated control electronics ype 3DREE.. 6 C 2X/...E (simplified) a * b b Material No. R R R R R R

3 3 DRE / 3DREE R 29184/12.02 Industrial Hydraulics osch Rexroth Corp. 3/12 Courtesy of CM/Flodyne/Hydradyne Motion Control Hydraulic neumatic Electrical Mechanical (800) Function, section he 3-way pressure reducing valve type 3DRE 6.. is directly operated by proportional solenoids. hey convert an electrical input signal into a proportional pressure output signal. he proportional solenoids are controlable wet pin DC solenoids with central thread and removable coil. he solenoids are controlled optionally via external control electronics (type 3DRE) or by integrated control electronics (type 3DREE). Design: he valve mainly comprises of: Housing (1) with mounting surface Control spool (2) with pressure measuring spools (3 and 4) Solenoids (5 and 6) with central thread Optional integrated valve electronics (7). Function: With the solenoids (5 and 6) de-energised the control spool (2) is held in its centre position by compression springs he control spool (2) is directly operated when one of the solenoids is energised. ype 3DRE 6.. ype 3DREE Valve with 2 switching positions: (types 3DRE.. or 3DRE.. ) he function of this version of the valve is basically the same as that of the valve with 3 switching positions. he 2 position valves are however only fitted with either solenoid a (5) or solenoid b (6). plug (8) is fitted in place of the second solenoid. "a" 7 E. g. by energising solenoid a (5). he pressure measuring spool (3) and control spool (2) moves to the right in proportion to the electrical input signal. he connection from to and to is via orifice form cross-sections with progressive flow characteristics. De-energising of the solenoid (5). he control spool (2) is returned to its centre position by the compression springs. In the middle position the connections and to are open, therefore the pressure fluid can freely flow to tank. n optional hand override (9 and 10), makes it possible to move the control spool (2) without energising the solenoid. ttention! Unintended use of the hand override can cause uncontrolled machine movement! "a" 8 8 "b" "b" Note: Draining of the tank line is to be prevented. aking the installation conditions into account a back pressure valve is to be fitted (back pressure approx. 2 bar). 10

4 4/12 osch Rexroth Corp. Industrial Hydraulics 3 DRE / 3DREE R 29184/12.02 Courtesy of CM/Flodyne/Hydradyne Motion Control Hydraulic neumatic Electrical Mechanical (800) echnical data (for applications outside these parameters, please consult us!) General Valve type 3DRE 3DREE Installation Optional, preferably horizontal Storage temperature range C ( F) 20 to + 80 ( 4 to + 176) mbient temperature range C ( F) 20 to + 70 ( 4 to +158) 20 to + 50 ( 4 to +122) Weight kg (lb) 2.0 (4.4) 2.2 (4.84) Hydraulic Operating pressure range ort bar (SI) 20 to 100 (290 to 1450) for pressure stage 16 bar (SI) 30 to 100 (435 to 1450) for pressure stage 25 bar (SI) 50 to 100 (725 to 1450) for pressure stage 45 ort bar (SI) 0 to 30 (0 to 435) Max. fl ow L/min (GM) 15 (4.0) Δp = 50 bar (725 SI) ressure fl uid Mineral oil (HL, HL) to DIN Further fl uids on request! ressure fl uid temperature range C ( F) 20 to +80 ( 4 to +176) preferably +40 to +50 (+104 to +122) Viscosity range mm 2 /s (SUS) 20 to 380 (97 to 1760) preferably 30 to 46 (141 to 215) Cleanliness class to ISO code Maximum permissible degree of contamination of the pressure fl uid is to ISO 4406 class 17/15/12 1) Hysteresis % 5 Repeatability accuracy % 1 Response sensitivity % 0.5 Reversal span % 1 Electrical, solenoid Valve type 3DRE 3DREE Voltage type DC Signal type nalogue Command value signal Voltage input 1 V ± 10 Max. current per solenoid Solenoid coil resistance Cold value at 20 C Ω Max. warm value Duty % 100 Coil temperature C ( F) Up to 150 (302) Electrical connections 3DRE With component plug to DIN EN lug-in connector to DIN EN ) 3DREE With component plug to E DIN M6-3 lug-in connector E DIN F6-3/g11 2) rotection to DIN EN /VDE 0470 part 1 I65 with mounted and fi xed plug-in connector 1) he cleanliness class stated for the components must be adhered too in hydraulic systems. Effective fi ltration prevents faults from occurring and at the same time increases the component service life. For the selection of fi lters see catalogue sheets RE , RE and RE ) Separate order, see page 5

5 3 DRE / 3DREE R 29184/12.02 Industrial Hydraulics osch Rexroth Corp. 5/12 Courtesy of CM/Flodyne/Hydradyne Motion Control Hydraulic neumatic Electrical Mechanical (800) echnical data (for applications outside these parameters, please consult us!) Electrical, control electronics Integrated, control electronics for type 3DREE Integrated into the valve, see page 6 Supply voltage Nominal voltage VDC 24 Lower limiting value V 19 Upper limiting value V 35 mplifi er I max 1.8 current consumption Impulse current 4 External, control electronics for type 3DRE nalogue amplifi er With 1 ramp time V- VS2-50-1X/1, to catalogue sheet RE in Eurocard format 1) With 5 ramp times V- VS2-50-1X/5, to catalogue sheet RE Digitale amplifi er in Eurocard format 1) V-VSD-1-2X/, to catalogue sheet RE mplifi er of modular design 1) V X/..., to catalogue sheet RE ) Separate order Note: For details regarding the environmental simulation test covering EMC (electro-magnetic compatibility), climate and mechanical loading see RE U (declaration regarding environmental compatibility). Electrical connections, plug-in connectors (dimensions in mm) For type 3DRE (for external control electronics - not for version J = sea water resistant) Connections at component plug E 1 2 E 1 2 lug-in connector to DIN EN Solenoid a, colour grey Separate order under Material No. R Solenoid b, colour black Separate order under Material No. R For type 3DREE (with integrated control electronics and for version J = sea water resistant) lug-in connector to DIN EN Separate order under Material No. R (plastic version) For pin allocations see block circuit diagram on page 6 Ø 27 (7.13) 91 (24.03) 27.5 (1.08) 30 (1.18) 36 (1.42) Connections at plug-in connector Ø 6.5 Ø 11 ( ) E 1 2 o amplifier 53 (2.09) 27.5 (1.08) 30 (1.18) C D F E E 1 2 o amplifier Ø 22.5 (0 89)

6 6/12 osch Rexroth Corp. Industrial Hydraulics 3 DRE / 3DREE R 29184/12.02 Courtesy of CM/Flodyne/Hydradyne Motion Control Hydraulic neumatic Electrical Mechanical (800) Integrated control electronics for type 3DREE lug allocation, component plug Integrated control electronics (see below) Slot Signal Supply 24 VDC (19 to 35 VDC) voltage GND C n.c. Differential D Com. value (± 10 V / 4 to 20 m) input E ref. potential Command value: positive command value (or 12 to 20 m) at D and the reference potential at E results in pressure in. negative command value (or 12 to 4 m) at D and the reference potential at E results in pressure in. For a valve with one solenoid on side b (version ), a positive command value at D (4 to20 m) and the reference potential at E, results in pressure in and for a valve with one solenoid on side a (version ) a positive command value at D (4 bis 20 m) and the reference potential at E, results in pressure in. Connection cable: Recommended: Up to 25 m cable length type LiYCY 5 x 0.75 mm 2 Up to 50 m cable length type LiYCY 5 x 1.0 mm 2 Outside diameter 6.5 to 11 mm Only attach the screen to E on the supply line. lock circuit diagram / connection allocation for the integrated electronics ower supply: Interface Integrated control electronics Valve Com. value Ref. potential 24V GND rotective conductor D E E C D E F Differential amplifier 1 U U Under voltage recognition ower supply U U Ramp generator Step function generator 1 rotective conductor screwed onto housing and cover 2 Ramp from 0 to5 s can be externally adjusted ( up down ) 1) Output stages are current controlled 2 + U i 0 V U i F Summator Interlock n.c. Output stage 1) U I Output stage 1) U I

7 3 DRE / 3DREE R 29184/12.02 Industrial Hydraulics osch Rexroth Corp. 7/12 Courtesy of CM/Flodyne/Hydradyne Motion Control Hydraulic neumatic Electrical Mechanical (800) Characteristic curves - measured with HL-46, ϑ oil = 40 C ±5 C (104 F ±41 F) and p = 100 bar (1450 SI) ressure stages 16, 25 and 45 bar (230, 360 and 650 SI) Nominal pressure in % Flow in L/min Output pressure in % Command value in % ressure stages 16, 25 and 45 bar (230, 360 and 650 SI) ressure-flow relationship (15.85) 50 (13.21) 40 (10.57) (7.93) 20 (5.28) 10 (2.64) 0 25 () 0 10 (145) or 20 (290) ressure differential in bar Flow in L/min 30 (435) 40 (580) 50 (725) or ()

8 8/12 osch Rexroth Corp. Industrial Hydraulics 3 DRE / 3DREE R 29184/12.02 Courtesy of CM/Flodyne/Hydradyne Motion Control Hydraulic neumatic Electrical Mechanical (800) Unit dimensions: type 3DRE (dimensions in mm) Valve housing 2 Name plate "a" 3 roportional solenoid a 42 (11.10) 8.5 (2.26) 69 (18.23) 31 (8.19) (41.34) 227 (59.97) 13.5 (3.57) 4 roportional solenoid b 5 lug-in connector, colour grey (separate order, see page 5) 6 lug-in connector, colour black (separate order, see page 5) 7 Identical seal rings for ports,, and 8 rotected hand override N9 9 Cover for valves with one solenoid (versions or ) 10 Space required to remove the plug-in connector 11 Machined valve mounting face and position of the ports 40.5 (10.70) 32.5 (8.59) "b" 79 (20.87) (12.42) 0.01/100 mm /4.0 in. (R max 4) Required surface finish of the mating piece 15 (3.96) 85.5 (22.59) 23 (6.08) 47 (12.42) 8 (2.12) 31 (8.19) 15 (3.96) 72 (19.02) Subplates: G 341/01, G 1/4 (SE-4; 7/16-20) G 342/01, G 3/8 (SE-6; 9/16-18) G 502/01, G 1/2 (SE-8; 3/4-16) Valve fixing screws: 4 socket head cap screws M5 x 50 DIN (10-24 UNC x 2 ) ightening torque M = 8.9 Nm (6.56 lb-ft) 11 (2.91) 40.5 (10.70) 44 (11.62) 0.75 (0.20) (8.39)

9 3 DRE / 3DREE R 29184/12.02 Industrial Hydraulics osch Rexroth Corp. 9/12 Courtesy of CM/Flodyne/Hydradyne Motion Control Hydraulic neumatic Electrical Mechanical (800) Unit dimensions: type 3DRE...J sea water resistant (dimensions in mm) 15 (3.96) 10 1 Valve housing 2 Name plate 5 3 roportional solenoid a 4 roportional solenoid b (8.19) "a" 5 lug-in connector (separate order, see page 5) 7 Identical seal rings for ports,, and ) 8 rotected hand override N 9 Cover for valves with one solenoid (versions or ) 10 Space required to remove the plug-in connector 11 Machined valve mounting face and position of the ports (2.26) 69 (18.23) (49.80) 13.5 (3.57) 42 (11.10) 292 (77.14) (10.70) "b" 32.5 (8.59) (20.87) 47 (12.42) 0.01/100 mm /4.0 in. (R max 4) Required surface finish of the mating piece 23 (6.08) 8 (2.12) 31 (8.19) 89 (23.51) 15 (3.96) 72 (19.02) Subplates: G 341/01, G 1/4 (SE-4; 7/16-20) G 342/01, G 3/8 (SE-6; 9/16-18) G 502/01, G 1/2 (SE-8; 3/4-16) Valve fixing screws: 4 socket head cap screws M5 x 50 DIN (10-24 UNC x 2 ) ightening torque M = 8.9 Nm (6.56 lb-ft) 8 47 (12.42) 11 (2.91) 40.5 (10.70) 44 (11.62) 292 (77.14) 0.75 (0.20) (8.39)

10 10/12 osch Rexroth Corp. Industrial Hydraulics 3 DRE / 3DREE R 29184/12.02 Courtesy of CM/Flodyne/Hydradyne Motion Control Hydraulic neumatic Electrical Mechanical (800) Unit dimensions: types 3DREE and 3DREE... J sea water resistant (dimensions in mm) 15 (3.96) 10 "a" 8.5 (2.26) 69 (18.23) [188.5] (41.34 [49.80]) 227 [292] (59.97 [77.14]) Subplates: G 341/01, G 1/4 (SE-4; 7/16-20) G 342/01, G 3/8 (SE-6; 9/16-18) G 502/01, G 1/2 (SE-8; 3/4-16) Valve fixing screws: 4 socket head cap screws M5 x 50 DIN (10-24 UNC x 2 ) ightening torque M = 8.9 Nm (6.56 lb-ft) 1 Valve housing 2 Name plate 3 roportional solenoid a 4 roportional solenoid b 5 lug-in connector (separate order, see page 5) 7 Identical seal rings for ports,, and 5 42 (11.10) 266 [299] (70.27 [78.99]) "b" 79 (20.87) (8.19) 13.5 (3.57) 40.5 (10.70) (8.59) 0.01/100 mm /4.0 in. (R max 4) Required surface finish of the mating piece 47 (12.42) 8 (2.12) 31 (8.19) 23 (6.08) 15 (3.96) (29.72) 47 (12.42) 72 (19.02) 44 (11.62) 292 (77.14) 8.1 rotected hand override N9 8.2 Hand override N for sea water resistant version J Cover for valves with one solenoid (versions or ) 10 Space required to remove the plug-in connector 11 Machined valve mounting face and position of the ports 12 Integrated control electronics 13 Dim. ( ) for sea water resistant version J 11 (2.91) 40.5 (10.70) 0.75 (0.20) (8.39)

11 3 DRE / 3DREE R 29184/12.02 Industrial Hydraulics osch Rexroth Corp. 11/12 Courtesy of CM/Flodyne/Hydradyne Motion Control Hydraulic neumatic Electrical Mechanical (800) hrottle insert When used with a proportional directional valve type 4WRZ, then the following throttle inserts are to be used for ports and : NS Ø in mm Material No

12 12/12 osch Rexroth Corp. Industrial Hydraulics 3 DRE / 3DREE R 29184/12.02 Courtesy of CM/Flodyne/Hydradyne Motion Control Hydraulic neumatic Electrical Mechanical (800) Notes osch Rexroth Corp. Industrial Hydraulics 2315 City Line Road ethlehem, US elephone (610) Facsimile (610) his document, as well as the data, specifi cations and other information set forth in it, are the exclusive property of osch Rexroth Corporation. Without their consent it may not be reproduced or given to third parties. he 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. he information given does not release the user from the obligation of own judgment and verifi cation. It must be remembered that our products are subject to a natural process of wear and aging.