Servo solenoid valves with positive overlap and on-board electronics (OBE)

Transcription

1 Electric Drives and Controls Hydraulics Linear Motion and Assembly Technologies Pneumatics Service Servo solenoid valves with positive overlap and on-board electronics (OBE) RA 2989/1.5 1/24 Model 4WRLE 1 35, symbols E./W. Nominal sizes 1, 16, 25, 35 Unit series 3X Maximum working pressure P, A, B 35 bar (576 PSI) T, X, Y 25 bar (3626 PSI) Nominal flow rate 5 1,1 l/min ( GPM) [Δp 1 bar (145 PSI)] Overview of contents Contents Page Features 1 Ordering data and scope of delivery 2 Preferred types 3 Function, sectional diagram 3 Accessories 4 Control oil supply 4 Symbols 5 and 6 Technical data 7 to 9 On-board trigger electronics 1 Characteristic curves 11 to 15 Unit dimensions 16 to 19 Mounting hole configurations 2 and 21 Variants on request For standard applications Special symbols and characteristic curves with/without intermediate plates Features Pilot operated servo solenoid valves NG1 to NG35 with positive overlap, see symbols E./W. and characteristic curves Pilot valve NG6, with control piston and sleeve in servo quality Actuated on one side, 4/4 fail-safe position when switched off Control solenoid with integral position feedback and on-board valve electronics (OBE), calibrated at the factory Main stage with approx. 2-% overlap and position feedback Electronically compensated, calibrated overlap, see characteristic curve range ±.5-V Spool with linear travel, with anti-rotation element Flow characteristic S = Progressive NG16 and 25 with load tap C1/C2 Suitable for electrohydraulic controllers in production systems with more demanding requirements For subplate attachment, mounting hole configuration NG1 to ISO , NG16 to ISO , NG25 to ISO and NG32 to ISO Subplates as per catalog section, NG1 RE 4555, NG16 RE 4557, NG25 RE 4559 and NG32 RE 456 (order separately) Plug-in connectors to DIN AM6, see catalog section RE 88 (order separately)

2 2/24 Bosch Rexroth Corp. Industrial Hydraulics 4WRLE 1 35, symbols E/.W. RA 2989/1.5 Ordering data and scope of delivery With on-board trigger electronics Nominal size 1 Nominal size 16 Nominal size 25 Nominal size 35 1) Symbols A B P T AC1B PC2T A B P T A B 4WRL E Z S J 3X H / G24 K A1 M * = E = 1 = 16 = 25 = 35 = E, E1 A B P T = E (Z), E1 (Z) AC1B PC2T = W, W1 A B P T = W (Z), W1 (Z) AC1B PC2T A B P T A B = E4 = W4 J = Further information in plain text M = NBR seals, suitable for mineral oils (HL, HLP) to DIN Interface for trigger electronics A1 = Setpoint input ±1 V Electrical connection K = without plug-in connector, with plug to DIN AM6 Order plug-in connector separately Control oil supply x, control oil outlet y No code= E = ET = T = x = external, y = external x = internal, y = external x = internal, y = internal x = external, y = internal Voltage supply of trigger electronics G24 = +24 V DC H = Highflow version (on request) 3X = Unit series 3 to 39 (installation and connection dimensions unchanged) Overlap compensation signal See characteristic curve range: ±.5-V Flow characteristic S = Progressive Nominal flow rate at 1 bar valve pressure difference Nominal size 1 = 5 or 85 l/min (13.21 or GPM) 16 = 18 l/min (47.55 GPM) 25 = 35 or 43 l/min (92.46 or GPM) 35 = 1,1 l/min (29.59 GPM) Z = With load tap C1/C2 P T P T Transitional symbols With symbol E1, E1(Z), E4, W1(Z), W4: P A: q v B T: q v /2 P B: q v /2 A T: q v 1) NG35 is a high flow version of the NG32, ports P, A, B and T have Ø 5 mm in the main stage. Contrary to the standard, ports P, A, B and T may be drilled to max. Ø 48 mm in the control block. These valves therefore provide higher flow rates Q A : Q B.

3 RA 2989/1.5 4WRLE 1 35, symbols E/.W. Industrial Hydraulics Bosch Rexroth Corp. 3/24 Standard types (available at short notice) Type 4WRLE- Material No. E, E1, E4, W, W1, W4 NG1 4WRLE1E 8SJ 3X/G24KO/A1M WRLE1E 8SJ 3X/G24ETKO/A1M WRLE1E1 8SJ 3X/G24KO/A1M WRLE1E1 8SJ 3X/G24ETKO/A1M WRLE1E4 8SJ 3X/G24KO/A1M WRLE1W 5SJ 3X/G24ETKO/A1M WRLE1W 8SJ 3X/G24KO/A1M WRLE1W 8SJ 3X/G24ETKO/A1M WRLE1W1 8SJ 3X/G24KO/A1M WRLE1W4 8SJ 3X/G24KO/A1M E (Z), E1 (Z), W (Z), W1 (Z), W4 NG16 4WRLE16EZ 18SJ 3X/G24ETKO/A1M WRLE16EZ 18SJ 3X/G24TKO/A1M WRLE16EZ 18SJ 3X/G24KO/A1M WRLE16E1Z 18SJ 3X/G24KO/A1M WRLE16WZ 18SJ 3X/G24KO/A1M WRLE16W1Z 18SJ 3X/G24ETKO/A1M WRLE16W1Z 18SJ 3X/G24KO/A1M WRLE16W4 18SJ 3X/G24ETKO/A1M WRLE16W4 18SJ 3X/G24KO/A1M Type 4WRLE- Material No. E (Z), E1 (Z), E4, W (Z), W1 (Z), W4 NG25 4WRLE25EZ 35SJ 3X/G24KO/A1M WRLE25EZ 35SJ 3X/G24TKO/A1M WRLE25EZ 35SJ 3X/G24ETKO/A1M WRLE25E1Z 35SJ 3X/G24KO/A1M WRLE25E4 35SJ 3X/G24KO/A1M WRLE25WZ 35SJ 3X/G24KO/A1M WRLE25W1Z 35SJ 3X/G24EKO/A1M WRLE25W1Z 35SJ 3X/G24KO/A1M WRLE25W4 35SJ 3X/G24ETKO/A1M WRLE25W4 35SJ 3X/G24KO/A1M W NG35 4WRLE35W 11SJ 3X/G24KO/A1M

4 4/24 Bosch Rexroth Corp. Industrial Hydraulics 4WRLE 1 35, symbols E/.W. RA 2989/1.5 Function, sectional diagram Servo solenoid valve 4WRLE EN EN see page 4 Pilot valve Position transducer Main stage Accessories, not included in scope of delivery Fastening screws f * Plug-in connectors 6P+PE, see also RE 88 NG1 4 x M6 x 4, DIN NG16 2 x M6 x 45, DIN x M1 x 5, DIN NG25 6 x M12 x 6, DIN NG35 6 x M2 x 9, DIN KS KS MS MS KS Testing and service equipment Test box type VT-PE-TB3, see RE 365 Test adapter 6P+PE type VT-PA-2, see RE 368

5 RA 2989/1.5 4WRLE 1 35, symbols E/.W. Industrial Hydraulics Bosch Rexroth Corp. 5/24 Control oil supply NG1, 25, 35 NG16 Pv X Tv Y ( ) Tv Y Pv X P Plug T jk NG SW 3 NG SW ( ) 52 (2.5) ( ) Type 3X A B G a b Symbol in detail X Type 3X E Type 3X ET Type 3X T P T Y A B G a b P T Y A B G a b P T A B G a b Pilot valve Main valve X P T No code = E = ET = T = x = external, y = external x = internal, y = external x = internal, y = internal x = external, y = internal Conversion The pilot valve can be supplied with oil both via ports X and Y (external) and from the main flow ducts P and T. In the basic version, the valve is equipped with the plugs j and k, i.e. X and Y are external. For valve versions with X and/or Y as internal, see ordering overview or carry out the conversion (see diagram above). When the control oil supply or outlet is changed, the part number must also be changed.

6 6/24 Bosch Rexroth Corp. Industrial Hydraulics 4WRLE 1 35, symbols E/.W. RA 2989/1.5 Symbols in mid position E.. or W.. E W Spool valves with overlap With symbol E, leakage oil in the two work chambers A and B of the control piston results in a build-up of pressure in A or B, which then causes a connecting cylinder to drift out of position. In many cases, the W symbol is a better solution. With a setpoint of, the control piston moves into the overlapped mid position. In this mid position, pressure is then relieved from ports A and B with small openings to T. This also supports the function of external check valves. Flow in mid position leakage pressure relief NG1 6 (1.59) 5 (1.32) Q = f (Δ s)... ±25 % Δp x Q x = Q nom 5 bar l/min (GPM) 4 (1.6) 3 (.8) 2 (.53) 1 (.26) % Δ s NG16 12 (3.17) 1 (2.64) l/min (GPM) 8 (2.11) 6 (1.59) 4 (1.6) 2 (.53) % Δ s NG25 24 (6.34) 2 (5.28) l/min (GPM) 16 (4.23) 12 (3.17) 8 (2.11) 4 (1.6) % Δ s NG35 6 (15.85) 5 (13.21) l/min (GPM) 4 (1.56) 3 (7.93) 2 (5.28) 1 (2.64) % Δ s

7 RA 2989/1.5 4WRLE 1 35, symbols E/.W. Industrial Hydraulics Bosch Rexroth Corp. 7/24 Load tap C1/C2 To compensate for fluctuations in the load or supply pressure, proportional valves are combined with pressure compensators. The load is tapped through a shuttle valve for the NG1 and 35, and through two additional ports C1 and C2 for NG16 and 25 ( 4WRL and 4WRLE only). NG1, 35 The pressure compensator therefore always receives the correct pressure signal even in the event of negative load. When using pressure compensators, external control oil supply should always be selected. NG16, 25 Asymmetrical valve spool Q A : Q B = 2:1 The two throttle cross-sections of proportional directional control valves are usually symmetrical. In order to adapt to differential cylinders with different with asymmetrical metering notches are available. A comparison of the flow rates can be found in the product range overview Preferred types, characteristic curves. Valve spools in a differential circuit In order to produce differential circuits, valve spools with an additional 4th position are available (see diagram). It is sufficient to install a check valve in the consumer lines. In addition, a symbol (spool) with internal B-P connection is employed for certain branch-oriented solutions. However, we recommend that you consult the BRH Application Center with regard to these special symbols. As a rule, a simulation or knowledge of this type of system is required.

8 8/24 Bosch Rexroth Corp. Industrial Hydraulics 4WRLE 1 35, symbols E/.W. RA 2989/1.5 Technical data General Construction Spool type valve, pilot operated Actuation Servo solenoid valve NG6, with position controller for pilot valve and main stage Type of mounting Subplate, mounting hole configuration NG (ISO ) Installation position Optional Ambient temperature range C ( F) 2 +5 ( ) Weight kg ( NG1 8.7 (19.2) NG (23.4) NG (4.6) NG35 81 (178.5) Vibration resistance, test condition max. 25 g, shaken in 3 dimensions (24 h) Hydraulic measured with HLP 46, ϑoil = 4 C ±5 C (14 F ±41 F) Pressure fluid Hydraulic oil to DIN , other fluids after prior consultation Viscosity range recommended mm 2 /s (SUS) 2 1 (93 464) max. permitted mm 2 /s (SUS) 1 8 (46 37) Pressure fluid temperature range C ( F) 2 +7 ( ) Maximum permissible degree of contamination Class 18/16/13 1) of pressure fluid Purity class to ISO 446 (c) Direction of flow See symbol Nominal flow at NG1 NG16 NG25 NG35 Δp = 5 bar (73 psi) per notch 2) l/min (GPM) 5, 8 (13.2, 21.1) 18 (47.6) 35 (92.5) 1,1 (25.6) Max. working pressure in P, A, B 35 (576) 35 (576) 35 (576) 35 (576) Max. pressure in X (ext.) 28 (461) Max. pressure in P (X = int.) 28 (461) Max. pressure in T (Y = ext.) bar (PSI) 25 (3626) Max. pressure in T (Y = int.) 25 (3626) Max. pressure in Y (ext.) 25 (3626) Min. control oil pressure of pilot stage 8 (116) Q max l/min (GPM) 17 (44.9) 45 (118.9) 9 (237.8) 3,5 (924.6) Q N pilot valve (supply pressure) Δp = 35 bar l/min (GPM) 2 (.53) 4 (1.6) 12 (3.17) 4 (1.57) Leakage of pilot valve at 1 bar Leakage of main stage Sb E at 1 bar Q N : Sb W, see graph on page 5 Static/Dynamic Overlap in mid position cm 3 /min (in 3 /min) l/min (GPM) <15 (9.2) <.25 (6.6) <18 (11.) <.4 (.11) <35 (18.3) <.6 (.16) <1,1 (61.) <1.1 (.29) % of spool stroke, electrically adjustable for UD E ±.5 V Spool stroke, main stage ± mm (in) 4 (.16) 7 (.28) 1 (.39) 12.5 (.49) Control oil volume of main stage 1 % cm 3 (in 3 ) 1.1 (.7) 4.3 (.26) 11.3 (.69) 41.5 (2.53) Control oil requirement... 1 %, x = 1 bar (145 psi) l/min (GPM) 2.2 (.58) 4.7 (1.24) 11.7 (3.9) 15.6 (4.12) Hysteresis % <.1, scarcely measurable Manufacturing tolerance % ±5 (Q max) Response time for... 1 %, x = 1 bar (145 psi) ms <4 <8 <8 <13 Response time for... 1 %, x = 1 bar (145 psi) ms <15 <25 <25 <5 Switch-off behavior After electrical shut-off (pilot valve in fail-safe ) Main stage moves to spring-centered mid position (Sb E../W.. ) Thermal drift <1 % at ΔT = 4 C (14 F) Calibration At factory ±1 %, see flow curve Conformity EN EN ) The purity classes stated for the components must be complied with in hydraulic systems. Effective filtration prevents problems and also extends the service life of components. For a selection of filters, see catalog sections RE 57, RE 576 and RE 581. Δp x 2) Flow rate at a different Δp qx = q nom 5 bar

9 RA 2989/1.5 4WRLE 1 35, symbols E/.W. Industrial Hydraulics Bosch Rexroth Corp. 9/24 Technical data Electric pilot valve NG6, valve with on-board electronics Cyclic duration factor % 1 Degree of protection IP 65 to DIN 45 and IEC 14434/5 Connection Plug-in connector 6P+PE, DIN Power supply Terminal A: Terminal B: -V Power consumption External fuse Input, Standard version Terminal D: U E Terminal E: Max. differential input voltage at V Test signal, Standard version Terminal F: U Test Terminal C: Protective conductor and screen Recommended cable Calibration 24 V DCnom min. 21 V DC/max. 4 V DC Ripple max. 2 V DC Solenoid 45 mm = 4 VA max. 2.5 A F Difference amplifier, R i = 1 kω... ±1 V V D B E B max. 18 V DC LVDT... ±1 V Reference V See pin assignment (installation conforms to CE) See pin assignment up to 2 m (65.6 ft) 7 x.75 mm 2 (.3 in 2 ) up to 4 m (131.2 ft) 7 x 1. mm 2 (.4 in 2 ) Overlap and P A at +8 V, calibrated at the factory, see valve characteristic curve Version: Standard Important Pilot operated servo solenoid valves with positive overlap perform their function in open or closed-loop-controlled axes and have approx. 2-% overlap when switched off. This condition does not constitute an active, safe basic position. For this reason, many applications require the use of external check valves or certain sandwich-mounted valves, which must be taken into account during the On/Off switching sequence.

10 1/24 Bosch Rexroth Corp. Industrial Hydraulics 4WRLE 1 35, symbols E/.W. RA 2989/1.5 Connection For electrical data, see page 8 and Operating Instructions Technical notes on the cable Version: Multi-wire cable Extra-finely stranded wire to VDE 295, Class 6 Protective conductor, green/yellow Cu braided screen Types: e.g. Ölflex-FD 855 CP (from Lappkabel company) No. of wires: Determined by type of valve, plug types and signal assignment Cable Ø: Outside Ø:.75 mm 2 to 2 m length 1. mm 2 to 4 m length mm Pg mm Pg16 Important Voltage supply 24 V DC nom., if voltage drops below 18 V DC, rapid shutdown resembling Enable OFF takes place internally. Electrical signals emitted via the trigger electronics (e.g. feedback signal) must not be used to shut down safety-relevant machine functions! (See European Standard, Technical Safety Requirements for Fluid-Powered Systems and Components Hydraulics, EN 982.)

11 RA 2989/1.5 4WRLE 1 35, symbols E/.W. Industrial Hydraulics Bosch Rexroth Corp. 11/24 On-board trigger electronics Block diagram/pin assignment Version A1: U D E ±1 V Supply Supply zero Ref. zero* Setpoint ±1 V Feedback signal ±1 V Protective conductor Screen * Do not connect to supply zero Signal 4/3 WV Pin assignment 6P+PE Version A1: U D E ±1 V (R i = 1 kω)

12 12/24 Bosch Rexroth Corp. Industrial Hydraulics 4WRLE 1 35, symbols E/.W. RA 2989/1.5 Characteristic curves measured with HLP-46, ϑ oil = 4 C ±5 C (14 F ±41 F) NG1 Q in l/min (GPM) 1 (26.42) 9 (23.78) 8 (21.13) 7 (18.49) 6 (15.85) 5 (13.21) 4 (1.57) 3 (7.93) 2 (5.28) 1 (2.64) Q A : Q B = 8: 8 l/min (21.13 GPM) Q in l/min (GPM) 1 (26.42) 9 (23.78) 8 (21.13) 7 (18.49) 6 (15.85) 5 (13.21) 4 (1.57) 3 (7.93) 2 (5.28) 1 (2.64) Q A : Q B = 8: 5 l/min (13.21 GPM) Q in l/min (GPM) 1 (26.42) 9 (23.78) 8 (21.13) 7 (18.49) 6 (15.85) 5 (13.21) 4 (1.57) 3 (7.93) 2 (5.28) 1 (2.64) Q A : Q B = 8: 5 l/min (13.21 GPM) ** Comp. U D E ±.5 V factory setting ±1 % ** Q P A at +8 V [U D E ] manufacturing tolerance Q max ±5 %

13 RA 2989/1.5 4WRLE 1 35, symbols E/.W. Industrial Hydraulics Bosch Rexroth Corp. 13/24 Characteristic curves measured with HLP-46, ϑ oil = 4 C ±5 C (14 F ±41 F) NG16 Q in l/min (GPM) 2 (52.83) 18 (47.55) 16 (42.27) 14 (36.98) 12 (31.7) 1 (26.42) 8 (21.13) 6 (15.85) 4 (1.57) 2 (5.28) Q A : Q B = 18: 18 l/min (47.55 GPM) Q in l/min (GPM) 2 (52.83) 18 (47.55) 16 (42.27) 14 (36.98) 12 (31.7) 1 (26.42) 8 (21.13) 6 (15.85) 4 (1.57) 2 (5.28) Q A : Q B = 18: 11 l/min (29.6 GPM) Q in l/min (GPM) 2 (52.83) 18 (47.55) 16 (42.27) 14 (36.98) 12 (31.7) 1 (26.42) 8 (21.13) 6 (15.85) 4 (1.57) 2 (5.28) Q A : Q B = 18: 11 l/min (29.6 GPM) ** Comp. U D E ±.5 V factory setting ±1 % ** Q P A at +8 V [U D E ] manufacturing tolerance Q max ±5 %

14 14/24 Bosch Rexroth Corp. Industrial Hydraulics 4WRLE 1 35, symbols E/.W. RA 2989/1.5 Characteristic curves measured with HLP-46, ϑ oil = 4 C ±5 C (14 F ±41 F)) NG25 Q in l/min (GPM) 4 (15.67) 36 (95.1) 32 (84.54) 28 (73.97) 24 (63.4) 2 (52.83) 16 (42.27) 12 (31.7) 8 (21.13) 4 (1.57) Q A : Q B = 35: 35 l/min (92.46 GPM) Q in l/min (GPM) 4 (15.67) 36 (95.1) 32 (84.54) 28 (73.97) 24 (63.4) 2 (52.83) 16 (42.27) 12 (31.7) 8 (21.13) 4 (1.57) Q A : Q B = 35: 23 l/min (6.76 GPM) Q in l/min (GPM) 4 (15.67) 36 (95.1) 32 (84.54) 28 (73.97) 24 (63.4) 2 (52.83) 16 (42.27) 12 (31.7) 8 (21.13) 4 (1.57) Q A : Q B = 35: 23 l/min (6.76 GPM) ** Comp. U D E ±.5 V factory setting ±1 % ** Q P A at +8 V [U D E ] manufacturing tolerance Q max ±5 %

15 RA 2989/1.5 4WRLE 1 35, symbols E/.W. Industrial Hydraulics Bosch Rexroth Corp. 15/24 Characteristic curves (measured with HLP-46, ϑ oil = 4- C ±5- C) NG35 Q in l/min (GPM) 12 (317.) 11 (29.59) 1 (264.17) 9 (237.75) 8 (211.34) 7 (184.92) 6 (158.5) 5 (132.9) 4 (15.67) 3 (79.25) 2 (52.83) 1 (26.42) Q A : Q B = 11: 11 l/min (29.59 GPM) ** Comp. U D E ±-.5 V factory setting ±-1-% ** Q P A at +-8 V [U D E ] manufacturing tolerance Q max ±-5-%

16 16/24 Bosch Rexroth Corp. Industrial Hydraulics 4WRLE 1 35, symbols E/.W. RA 2989/1.5 Characteristic curves measured with HLP-46, ϑ oil = 4- C ±5- C (14 F ±41 F) Response time x = 1 bar (145 psi) NG1 Open Close NG16 NG25 NG35

17 RA 2989/1.5 4WRLE 1 35, symbols E/.W. Industrial Hydraulics Bosch Rexroth Corp. 17/24 Unit dimensions NG1 nominal dimensions in mm (inches) 21 (8.27) 4 (1.57) Not included in scope of delivery 15 (.59) (1/4-2 UNC x 1-1/2 ) 39 (1.54) 39 (1.54) 81 (3.19) 49 (1.93) 77 (3.3) 12 (4.2) 167 (6.57) 56.5 (2.22) 46 (1.81) 15 (4.13) 197 (7.76) Mounting hole configuration: NG1 (ISO ), see page 2 For subplates, see catalog section RE (2.76) 5 (.2) 8 (.31) 32.1/1 mm.4/4. in. (R max 4) Required surface finish of the mating piece

18 18/24 Bosch Rexroth Corp. Industrial Hydraulics 4WRLE 1 35, symbols E/.W. RA 2989/1.5 Unit dimensions NG16 nominal dimensions in mm (inches) 17 (.67) 21 (8.27) 15 (.59) Not included in scope of delivery 13 (.51) 34 (1.34) 25 (.98) Ø3 (.12) 77 (3.3) 3 (1.18) 15 (5.9) 225 (8.56) 32 (11.89) (1/4-2 UNC x 1-3/4 ) (3/8-16 UNC x 2 ) 46 (1.81) 119 (4.69) 212 (8.35) 95 (3.74) 3 (.12) Mounting hole configuration: NG16 (ISO ), see page 2 For subplates, see catalog section RE (3.62) 32.1/1 mm.4/4. in. (R max 4) Required surface finish of the mating piece

19 RA 2989/1.5 4WRLE 1 35, symbols E/.W. Industrial Hydraulics Bosch Rexroth Corp. 19/24 Unit dimensions NG25 nominal dimensions in mm (inches) 64 (2.52) 21 (8.27) 15 (.59) Not included in scope of delivery 13 (.51) 43 (1.69) Ø13 18 (.51) Ø6 (.24) 77 (3.3) 57 (2.24) (.71) 19 (7.48) 35 (12.1) 382 (15.4) 46 (1.81) (1/2-13 UNC x 2-1/4 ) 149 (5.87) 242 (9.53) 125 (4.92) 43 (1.69) 6 (.24) Mounting hole configuration: NG25 (ISO ), see page 21 For subplates, see catalog section RE (4.65) 32.1/1 mm.4/4. in. (R max 4) Required surface finish of the mating piece

20 2/24 Bosch Rexroth Corp. Industrial Hydraulics 4WRLE 1 35, symbols E/.W. RA 2989/1.5 Unit dimensions NG35 nominal dimensions in mm(inches) 21 (8.27) 15 (.59) 6 (2.36) Not included in scope of delivery 13 (.51) 37 (14.57) 29 (1.14) 49 (1.93) 43 (1.69) Ø21 (.83) 225 (8.56) 6 (2.36) Ø6 (.24) 5 (.2) 9 (3.54) 74 (2.91) 69 (2.72) 32 (12.6) 461 (18.15) (3/4-1 UNC x 3-1/2 ).1/1 mm.4/4. in. 32 (R max 4) Mounting hole configuration: NG32 (ISO ), see page 21 For subplates, see catalog section RE 456 Required surface finish of the mating piece

21 RA 2989/1.5 4WRLE 1 35, symbols E/.W. Industrial Hydraulics Bosch Rexroth Corp. 21/24 Mounting hole configurations nominal dimensions in mm (inches) NG1 ISO ) Deviates from standard 2) Thread depth: Ferrous metal 1.5 x Ø* Non-ferrous 2 x Ø * (NG1 min. 1.5 mm [.41 in.]) X Y Ø P A T B F1 F2 F3 F4 X Y R 27 (1.6) 6.3 (.25) 1.5 1) (.41) 16.7 (.66) 21.4 (.84) 1.5 1) (.41) 3.2 (.13) 32.5 (1.28) 1.5 1) (.41) 37.3 (1.47) 21.4 (.84) 1.5 1) (.41) () () 54 (2.13) () 54 (2.13) 46 (1.81) () 46 (1.81) 8 (.31) 11 (.43) M6 2) M6 2) M6 2) M6 2) 6.3 (.25) 62 (2.44) 11 (.43) 6.3 (.25) 5.8 (2.) 32.5 (1.28) 1.5 1) (.41) NG16 ISO ) Deviates from standard 2) Thread depth: Ferrous metal 1.5 x Ø Non-ferrous 2 x Ø X Y Ø P A T B L X Y G 1 G 2 F 1 F 2 F 3 F 4 F 5 F (1.34) (.72) (2.59) () (3.2) (3.47) (3.2) (.72) () (4.) (4.) () (1.34) 5 (1.97) 14.3 (.56) 1) 2 (.79) 55.6 (2.19) 2 1) (.79) 14.3 (.56) 2 1) (.79) 55.6 (2.19) 34.9 (1.37) 2 1 (.79) ) 6.3 (.25) 15.9 (.63) 6.3 (.25) 57.2 (2.25) 6.3 (.25) () 4 (.16) 69.9 (2.75) 4 (.16) () () 69.9 (2.75) 69.9 (2.75) 1.6 (.6) 5 (1.97) 71.5 (2.81) M1 2) M1 2) M1 2) M1 2) M6 2) M6 2)

22 22/24 Bosch Rexroth Corp. Industrial Hydraulics 4WRLE 1 35, symbols E/.W. RA 2989/1.5 Mounting hole configurations nominal dimensions in mm (inches) NG25 ISO ) Deviates from standard 2) Thread depth: Ferrous metal 1.5 x Ø Non-ferrous 2 x Ø P A T B L X Y G 1 G 2 F 1 F 2 F 3 F 4 F 5 F 6 X 77 (3.3) 53.2 (2.9) 29.4 (1.16) 1.8 (3.97) 5.6 (.22) 17.5 (.69) (4.44) 94.5 (3.72) 29.4 (1.16) () 13.2 (5.13) 13.2 (5.13) () 53.2 (2.9) 77 (3.3) Y 17.5 (.69) 74.6 (2.94) 17.5 (.69) 74.6 (2.94) 46 (1.81) 73 (2.87) 19 (.75) 4.8 (.19) 92.1 (3.63) () () 92.1 (3.63) 92.1 (3.63) () 92.1 (3.63) Ø 25 1) (.98) 25 1) (.98) 25 1) (.98) 25 1) (.98) 11.2 (.44) 11.2 (.44) 11.2 (.44) 7.5 (.3) 7.5 (.3) M12 2) M12 2) M12 2) M12 2) M12 2) M12 2)

23 RA 2989/1.5 4WRLE 1 35, symbols E/.W. Industrial Hydraulics Bosch Rexroth Corp. 23/24 Mounting hole configurations nominal dimensions in mm (inches) NG32 ISO ) Deviates from standard (NG35) 2) Thread depth: Ferrous metal 1.5 x Ø Non-ferrous 2 x Ø X Y Ø P A T B X Y G 1 G 2 F 1 F 2 F 3 F 4 F 5 F (4.5) 35 (1.38) 48 1) (1.89) 82.5 (3.25) (4.87) 48 1) (1.89) 41.3 (1.63) 35 (1.38) 48 1) (1.89) (5.81) (4.87) 48 1) (1.89) 41.3 (1.63) 13.2 (5.13) 11.2 (.44) (6.63) 44.5 (1.75) 11.2 (.44) (5.81) () 7.5 (.3) 41.3 (1.63) (6.25) 7.5 (.3) () () 19.5 (7.5) () 19.5 (7.5) (6.25) () (6.25) 76.2 (3.) () (4.5) (6.25) M2 2) M2 2) M2 2) M2 2) M2 2) M2 2)

24 24/24 Bosch Rexroth Corp. Industrial Hydraulics 4WRLE 1 35, symbols E/.W. RA 2989/1.5 Notes Bosch Rexroth Corp. Industrial Hydraulics 2315 City Line Road Bethlehem, PA USA Telephone (61) Facsimile (61) 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 and verifi cation. It must be remembered that our products are subject to a natural process of wear and aging.