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4/3 proportional directional valves, direct operated, with integrated electronics (OBE) 4WREEM
4/3 proportional directional valves, direct operated, with integrated electronics (OBE) 4WREEM
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Size 6, 10
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Component series 2X
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Maximum operating pressure 315 bar
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Maximum flow 180 l/min
|
Type |
4WREEM | |||
|
Size |
6 | 10 | ||
|
Installation position |
horizontal, must not be installed vertically | |||
|
Ambient temperature range |
°C |
-20 … +50 | ||
|
Storage temperature range |
°C |
-20 … +80 | ||
|
Weight |
kg |
2.4 | 6.5 | |
|
MTTFd values according to EN ISO 13849 |
y |
150 | ||
|
Size |
6 | 10 | |||
|
Maximum operating pressure |
bar |
315 | |||
|
Maximum operating pressure |
Port P |
bar |
315 | ||
|
Port T |
bar |
210 | |||
|
Port A |
bar |
315 | |||
|
Port B |
bar |
315 | |||
|
Maximum flow |
l/min |
90 | 180 | ||
|
Nominal flow |
l/min |
4 8 16 32 |
25 50 75 |
||
|
Maximum admissible zero flow |
l/min |
≤ 0.3 | ≤ 0.6 | ||
|
Hydraulic fluid |
see table below | ||||
|
Hydraulic fluid temperature range |
°C |
-20 … +80 | |||
|
preferably |
°C |
+40 … +50 | |||
|
Viscosity range |
mm²/s |
20 … 380 | |||
|
preferably |
mm²/s |
30 … 46 | |||
|
Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 1) |
Class 20/18/15 according to ISO 4406 (c) | ||||
|
Hysteresis |
% |
≤ 0.1 | |||
|
Range of inversion |
% |
≤ 0.05 | |||
|
Response sensitivity |
% |
≤ 0.05 | |||
|
Zero shift upon change of: |
Hydraulic fluid temperature |
%/10 K |
< 0.15 | ||
|
Operating pressure |
%/100 bar |
< 0.1 | |||
| 1) | The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and simultaneously increases the life cycle of the components. For the selection of the filters, see www.boschrexroth.com/filter. |
|
Hydraulic fluid |
Classification |
Suitable sealing materials |
Standards |
|
Mineral oils and related hydrocarbons |
HL, HLP |
NBR / FKM |
DIN 51524 |
|
Flame-resistant - containing water |
HFC (Fuchs HYDROTHERM 46M, Petrofer Ultra Safe 620) |
NBR |
ISO 12922 |
|
Important information on hydraulic fluids: For more information and data on the use of other hydraulic fluids please contact us. There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.). The flash point of the process and operating medium used must be 40 K over the maximum solenoid surface temperature.
Flame-resistant - containing water: |
|||
|
Size |
6 | 10 | ||
|
Voltage type |
Direct voltage | |||
|
Maximum current consumption 1) |
of the amplifier |
A |
2 | |
|
of the amplifier (impulse current) |
A |
3 | ||
|
Actuated time |
% |
100 | ||
|
Maximum coil temperature 2) |
°C |
150 | ||
|
Protection class according to DIN EN 60529 |
IP65 with plug-in connectors mounted and locked | |||
|
Command value output |
V |
± 10 | ||
|
Power supply |
V |
24 | ||
|
Supply voltage range |
V |
19 … 35 | ||
|
Earthing (GND) |
V |
0 | ||
|
Enable input range |
"B6" |
V |
8,5 … 35 | |
|
Command value input |
"B6" |
mA |
± 10 | |
|
Actual value output |
"B6" |
V |
± 10 | |
|
Power output stages of signal output |
0 V or UB | |||
|
Control spool position P → A |
V |
24 | ||
|
Control spool position P → B |
V |
24 | ||
|
Control spool position zero position |
V |
24 | ||
| 1) | plus load of switching outputs |
| 2) | Due to the surface temperatures occurring at solenoid coils, the European standards ISO 13732-1 and EN ISO 4413 need to be adhered to! |