4/3, 4/2 and 3/2 directional valve with wet-pin DC solenoids
4/3, 4/2 and 3/2 directional valve with wet-pin DC solenoids
4/3, 4/2 and 3/2 directional valve with wet-pin DC solenoids
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4/3, 4/2 <strong>and</strong> 3/2 <strong>directional</strong> <strong>valve</strong><br />
<strong>with</strong> <strong>wet</strong>-<strong>pin</strong> <strong>DC</strong> <strong>solenoids</strong><br />
Type WE 6 …H<br />
Size 6<br />
Component series 7X<br />
Maximum operating pressure 3 5 bar<br />
Maximum flow 60 l/min<br />
Table of contents Features<br />
Contents Page<br />
Features<br />
Ordering code 2<br />
St<strong>and</strong>ard types 2<br />
Plug-in connectors 2<br />
Spool symbols 3<br />
Function, section 4<br />
Technical data 5<br />
Characteristic curves 6<br />
Switching performance limits 6<br />
Unit dimensions 7, 8<br />
Information on available spare parts:<br />
www.boschrexroth.com/spc<br />
RE 23164/07.06<br />
Replaces: 02.06<br />
– Direct operated <strong>directional</strong> spool <strong>valve</strong> <strong>with</strong> solenoid actuation,<br />
st<strong>and</strong>ard version<br />
– Position of ports to DIN 24340 form A<br />
– For subplates, see data sheet RE 45052 (separate order)<br />
– Wet-<strong>pin</strong> <strong>DC</strong> <strong>solenoids</strong><br />
H7380<br />
– Electrical connection as individual connection<br />
– Concealed manual override<br />
– Solenoid coil can be rotated<br />
/8<br />
– Pressure-tight chamber needs not to be opened when coil is<br />
to be replaced
2/8 Bosch Rexroth AG Hydraulics WE 6 .…H RE 23164/07.06<br />
Ordering code<br />
3 service ports = 3<br />
4 service ports = 4<br />
Size 6 = 6<br />
Spool symbols e.g. D, E, etc.<br />
For possible versions, see page 3<br />
Component series 70 to 79 = 7X<br />
(70 to 79: unchanged installation <strong>and</strong> connection<br />
dimensions)<br />
Spring return = No code<br />
Without spring return <strong>with</strong> detent = OF )<br />
Wet-<strong>pin</strong> <strong>DC</strong> <strong>solenoids</strong> = H<br />
<strong>DC</strong> voltage 2 V = G12<br />
<strong>DC</strong> voltage 24 V = G24<br />
) Only <strong>with</strong> spool symbol D<br />
2) Plug-in connectors, separate order, see below<br />
3) Plug-in connectors, separate order, see RE 08006<br />
St<strong>and</strong>ard types<br />
Type Material number<br />
3WE 6 A7X/HG 2N9K4 R90 089276<br />
3WE 6 A7X/HG24N9K4 R90 089244<br />
4WE 6 C7X/HG 2N9K4 R90 089277<br />
4WE 6 C7X/HG24N9K4 R90 089245<br />
4WE 6 D7X/HG 2N9K4 R90 089273<br />
4WE 6 D7X/HG24N9K4 R90 087088<br />
Plug-in connectors to DIN EN 7530 -803<br />
For further plugin<br />
connectors,<br />
see RE 08006<br />
Valve<br />
side Colour<br />
Without circuitry<br />
WE 6 7X H N9 *<br />
With indicator lamp<br />
2 … 240 V<br />
Type Material number<br />
4WE 6 Y7X/HG 2N9K4 R90 089274<br />
4WE 6 Y7X/HG24N9K4 R90 089243<br />
4WE 6 E7X/HG 2N9K4 R90 089278<br />
4WE 6 E7X/HG24N9K4 R90 087087<br />
4WE 6 J7X/HG 2N9K4 R90 089280<br />
4WE 6 J7X/HG24N9K4 R90 08924<br />
Further st<strong>and</strong>ard types <strong>and</strong> components can be<br />
found in the EPS (st<strong>and</strong>ard price list).<br />
Material no.<br />
With rectifier<br />
24 … 240 V<br />
With indicator lamp <strong>and</strong><br />
Zener diode suppressor circuit<br />
24 V<br />
a Grey R901017010 – – –<br />
b Black R901017011 – – –<br />
a/b Black – R901017022 R901017025 R901017026<br />
Further details in<br />
clear text<br />
Seal material<br />
no code = NBR seals<br />
Caution!<br />
Observe compatibility of seal material<br />
<strong>with</strong> hydraulic fluid used!<br />
Electrical connection<br />
K4 ) = Without plug-in connector<br />
Individual connection <strong>with</strong> component plug<br />
to DIN EN 7530 -803<br />
C4 3) = Without plug-in connector<br />
Individual connection <strong>with</strong> component plugin<br />
connector C4 (Junior Timer)<br />
N9 = With concealed manual override
RE 23164/07.06 WE 6 .…H Hydraulics Bosch Rexroth AG 3/8<br />
Spool symbols<br />
A<br />
A B<br />
a b<br />
a<br />
a b<br />
b<br />
P T<br />
P T<br />
A<br />
a b = …/OF.. 1)<br />
a b<br />
P<br />
B<br />
B<br />
T<br />
A B<br />
P T<br />
a b<br />
A B<br />
a b<br />
P T<br />
A B<br />
a<br />
a b<br />
b<br />
P T<br />
= A<br />
= C<br />
= D<br />
= B<br />
= Y<br />
A B<br />
A B<br />
a 0 b<br />
a<br />
a 0 b<br />
b<br />
P T<br />
P T<br />
A B<br />
A B<br />
a 0<br />
a<br />
a 0<br />
P T<br />
P T<br />
A B<br />
P T<br />
) Only spool symbol D<br />
A B<br />
0 b 0 b<br />
P T<br />
= .A 2)<br />
= .B<br />
b<br />
= E 2)<br />
= G<br />
= H<br />
2) Example:<br />
Spool symbol E <strong>with</strong> spool position "a" ordering code ..EA..<br />
= J
4/8 Bosch Rexroth AG Hydraulics WE 6 .…H RE 23164/07.06<br />
Function, section<br />
Directional <strong>valve</strong>s of type WE are solenoid-operated <strong>directional</strong><br />
spool <strong>valve</strong>s. They control the start, stop <strong>and</strong> direction of a<br />
flow.<br />
These <strong>directional</strong> <strong>valve</strong>s basically consist of housing ( ), one<br />
or two <strong>solenoids</strong> (2), control spool (3), as well as one or two<br />
return springs (4).<br />
In the non-operated condition, control spool (3) is held by<br />
return springs (4) in the central or in the initial position. Control<br />
spool (3) is actuated via <strong>wet</strong>-<strong>pin</strong> <strong>solenoids</strong> (2).<br />
The force provided by solenoid (2) acts via plunger (5) on<br />
control spool (3) <strong>and</strong> shifts the latter from its rest position to<br />
the desired final position. This enables the required direction of<br />
flow depending on the spool symbol.<br />
5 1 3 5<br />
6 6<br />
2<br />
“a” “b”<br />
Type 4WE 6 E7X/H…<br />
A (P) B<br />
4 T<br />
4<br />
When solenoid (2) is de-energised, control spool (3) is pushed<br />
by return spring (4) back to its rest position.<br />
Manual override (6) allows control spool (3) to be shifted <strong>with</strong>out<br />
energisation of the solenoid.<br />
Note!<br />
To ensure proper operation, see to it that the pressure<br />
chamber of the solenoid is filled <strong>with</strong> oil!<br />
The manual override may only be operated using a rounded-off<br />
tool (Ø3 + mm)!<br />
Operation only up to a tank pressure of 50 bar.<br />
2
RE 23164/07.06 WE 6 .…H Hydraulics Bosch Rexroth AG 5/8<br />
Technical data (for applications outside these parameters, please consult us!)<br />
General<br />
Weight – Valve <strong>with</strong> solenoid kg approx. .25<br />
– Valve <strong>with</strong> 2 <strong>solenoids</strong> kg approx. .6<br />
Installation orientation Optional<br />
Ambient temperature range °C –30 to +50<br />
Hydraulic<br />
Maximum operating pressure – Ports A, B, P bar 3 5<br />
– Port T bar 60 With symbol A <strong>and</strong> B, port T must be used as leakage<br />
port, if the operating pressure is higher than the permissible<br />
tank pressure.<br />
Maximum flow (st<strong>and</strong>ard <strong>valve</strong>s) l/min 60<br />
Hydraulic fluid Mineral oil (HL, HLP) to DIN 5 524; fast bio-degradable<br />
hydraulic fluids to VDMA 24568 (see also RE 9022 ); HETG<br />
(rape seed oil); other hydraulic fluids on enquiry<br />
Hydraulic fluid temperature range °C –30 to +80<br />
Viscosity range mm 2 /s 2.8 to 500<br />
Max. permissible degree of contamination of the<br />
hydraulic fluid - cleanliness class to ISO 4406 (c)<br />
Electrical<br />
Class 20/ 8/ 5 )<br />
Type of voltage <strong>DC</strong> voltage<br />
Available voltages V 2; 24<br />
Voltage tolerance (nominal voltage) % ± 0<br />
Power consumption W 26<br />
Duty cycle S ( 00 %)<br />
Switching time ON ms 20 to 45<br />
OFF ms 0 to 25<br />
Maximum switching frequency /h 5000<br />
Maximum coil temperature 2) °C 50<br />
Type of protection to EN 60529 IP 65 <strong>with</strong> plug-in connector mounted <strong>and</strong> locked<br />
Insulation class VDE 0580 F<br />
) The cleanliness classes specified for components must be<br />
adhered to in hydraulic systems. Effective filtration prevents<br />
malfunction <strong>and</strong>, at the same time, prolongs the service life<br />
of components.<br />
For the selection of filters, see data sheets RE 50070,<br />
RE 50076, RE 5008 , RE 50086 <strong>and</strong> RE 50088.<br />
2) Due to the surface temperatures of solenoid coils, observe<br />
European st<strong>and</strong>ards EN 563 <strong>and</strong> EN 982!<br />
For the electrical connection, properly connect the protective<br />
conductor (PE ).
6/8 Bosch Rexroth AG Hydraulics WE 6 .…H RE 23164/07.06<br />
Characteristic curves (measured <strong>with</strong> HLP46, ϑ oil = 40 °C ± 5 °C)<br />
Pressure drop in bar →<br />
11<br />
10<br />
8<br />
6<br />
4<br />
2<br />
0 10 20 30 40 50 60<br />
Flow in l/min →<br />
300<br />
200<br />
100<br />
0 10<br />
1<br />
4<br />
20 30 40 50 60<br />
Flow in l/min →<br />
8<br />
Switching performance limits (measured <strong>with</strong> HLP46, ϑ oil = 40 °C ± 5 °C)<br />
Caution!<br />
The specified switching performance limits are valid for use<br />
<strong>with</strong> two directions of flow (e.g. from P → A <strong>and</strong> simultaneous<br />
return flow from B → T).<br />
Due to the flow forces acting <strong>with</strong>in the <strong>valve</strong>, the permissible<br />
switching performance limits may be significantly lower <strong>with</strong><br />
only one direction of flow (e.g. from P → A, while port B is<br />
blocked)!<br />
Operating pressure in bar →<br />
∆p-q V charactersistic curves<br />
7 Spool symbol “H” in central position P – T<br />
8 Spool symbol “G” in central position P – T<br />
5 6 7<br />
2<br />
3<br />
6<br />
4<br />
3<br />
7<br />
1<br />
2<br />
5<br />
Spool<br />
symbol<br />
In such a case, please consult us!<br />
Direction of flow<br />
P–A P–B A–T B–T<br />
A, B 3 3 – –<br />
C 3<br />
D, Y 4 4 3 3<br />
E 3 3<br />
J 2<br />
G 6 6 7 7<br />
H 2 5 2 2<br />
The switching performance limits were determined while<br />
the <strong>solenoids</strong> were at operating temperature, 10% undervoltage<br />
<strong>and</strong> <strong>with</strong>out tank pre-loading.<br />
<strong>DC</strong> voltage solenoid<br />
Characteristic curve Spool symbol<br />
1 A, B<br />
2 C, Y<br />
3 E<br />
4 J<br />
5 D<br />
6 G, H<br />
7 D/OF
RE 23164/07.06 WE 6 .…H Hydraulics Bosch Rexroth AG 7/8<br />
Unit dimensions: Version ”K4” (nominal dimensions in mm)<br />
5 7<br />
2<br />
4<br />
2<br />
7<br />
82,5 15<br />
7<br />
23<br />
1.1 Solenoid "a"<br />
1.2 Solenoid "b"<br />
1.1 8 10 9<br />
8 1.2<br />
13,6<br />
Ø9,4<br />
Ø5,6<br />
42<br />
85,5 (127,5)<br />
149,5<br />
A<br />
69,2<br />
P<br />
213<br />
2 Plug-in connector <strong>with</strong>out circuitry (separate order, see<br />
page 3)<br />
3 Plug-in connector <strong>with</strong> circuitry (separate order, see<br />
page 3)<br />
4 Nameplate<br />
5 Space required to remove plug-in connector<br />
6 Space required to remove coil<br />
7 Fixing nut, M T = 4 + Nm<br />
8 Plug screw for <strong>valve</strong> <strong>with</strong> one solenoid<br />
9 Identical seal rings for ports A, B, P <strong>and</strong> T<br />
10 Position of ports to DIN 24340 form A<br />
T<br />
B<br />
8,4<br />
0,01/100mm<br />
Rzmax 4<br />
Subplates to data sheet RE 45052<br />
(separate order)<br />
G 34 /0 (G /4)<br />
G 342/0 (G3/8)<br />
G 502/0 (G /2)<br />
Valve fixing screws (separate order)<br />
– 4 socket head cap screws<br />
ISO 4762 - M5 x 50 - 10.9-flZn-240h-L<br />
(friction coefficient µ total = 0.09 to 0. 4);<br />
tightening torque M T = 7 Nm ± 0%,<br />
material no. R913000064<br />
or<br />
3<br />
53<br />
45<br />
6<br />
5<br />
Required surface quality<br />
of mating surface<br />
48<br />
– 4 socket head cap screws ISO 4762 - M5 x 50 - 10.9<br />
friction coefficient µ total = 0. 2 to 0. 7, results in a<br />
tightening torque M T = 8. Nm ± 0%<br />
(to be procured by you)<br />
88,5 15
8/8 Bosch Rexroth AG Hydraulics WE 6 .…H RE 23164/07.06<br />
Unit dimensions: Version ”C4” (nominal dimensions in mm)<br />
124 15<br />
7<br />
23<br />
5<br />
7<br />
1.1 8 10 9<br />
8 1.2<br />
13,6<br />
Ø9,4<br />
Ø5,6<br />
42<br />
85,5 (127,5)<br />
149,5<br />
11<br />
Explanations of items 1 to 10,<br />
For subplates <strong>and</strong> <strong>valve</strong> fixing screws, see page 7.<br />
11 Plug-in connector ”Junior Timer”, straight (separate<br />
order, see RE 08006)<br />
12 Plug-in connector ”Junior Timer”, angled (separate<br />
order, see RE 08006)<br />
Bosch Rexroth AG<br />
Hydraulics<br />
Zum Eisengießer<br />
978 6 Lohr am Main, Germany<br />
Phone +49 (0) 93 52 / 8-0<br />
Fax +49 (0) 93 52 / 8-23 58<br />
documentation@boschrexroth.de<br />
www.boschrexroth.de<br />
A<br />
69,2<br />
P<br />
4<br />
213<br />
T<br />
B<br />
12<br />
8,4<br />
0,01/100mm<br />
Rzmax 4<br />
7<br />
Required surface quality<br />
of mating surface<br />
53<br />
45<br />
6<br />
5<br />
48<br />
86 15<br />
© This document, as well as the data, specifications <strong>and</strong> other information<br />
set forth in it, are the exclusive property of Bosch Rexroth AG. It may not be<br />
reproduced or given to third parties <strong>with</strong>out its consent.<br />
The data specified above only serve to describe the product. No statements<br />
concerning a certain condition or suitability for a certain application<br />
can be derived from our information. The information given does not<br />
release the user from the obligation of own judgment <strong>and</strong> verification. It<br />
must be remembered that our products are subject to a natural process of<br />
wear <strong>and</strong> aging.