4WRGE25V250L-1X/315G24K31/C1M-202
Manufacturer: Bosch Rexroth
Material #: R901086521
Model : 4WRGE25V250L-1X/315G24K31/C1M-202
***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth 4WRGE25V250L-1X/315G24K31/C1M-202 (R901086521) is a state-of-the-art directional high-response valve, designed to control flow proportionally to the input signal. This valve is equipped for subplate mounting and features position control with integrated control electronics. It offers precise flow direction from P to B and A to T or vice versa, ensuring optimal performance for various hydraulic applications.
The valve comprises four main assemblies: a low-friction pilot control valve with a dry gap torque motor, a valve housing with orifices and filters, a housing for the main stage with a spring-centered control spool, and control electronics that include an amplifier for the pilot valve and position control of the main spool. An inductive position transducer is used for accurate sensing of the main spool's position.
Its functional capabilities include command value inputs ranging from 0 to 10 V or 4 to 20 mA, with the system automatically correcting any deviations between command and actual values via the torque motor and flapper plate. This ensures high precision in controlling pressures and spool positions. The design minimizes control deviation to nearly zero volts, indicating exceptional accuracy in operation.
Safety measures are built into this model; in case of supply voltage failure while operating pressure is present, the main control spool may adopt an undefined position which could potentially cause machine damage. Additionally, certain types of centering springs will default the main control spool to a central or preferred direction within specified tolerances upon operating pressure failure if no directional sandwich plate valve is used.
This Bosch Rexroth high-response valve supports various configurations for pilot oil supply and drainage—either internally via ports P and T or externally via ports X and Y—accommodating diverse system requirements. The product also allows for external zero point correction if necessary. Designed according to DIN 24340 form A and ISO 6264 standards, this valve can handle maximum operating pressures up to 315 bar and nominal flows up to 250 liters per minute, making it suitable for demanding hydraulic tasks where precision and responsiveness are critical.
$34,287.00 USD
More are expected on October 1, 2024
Status: This product is temporarily out of stock.
Qty: Delivered as early as October 1, 2024 when ordered in
This product is eligible for factory repair.
The 4/3 directional high-response valve is designed for subplate mounting, with position control and integrated control electronics. It controls the flow proportionally to the input signal, continuously from P to B and A to T or also from P to A and B to T.
Set-up:
The valve consists of four main assemblies:
low-friction pilot control valve (1) with dry 2-gap torque motor; valve housing (2) with orifices (3) and filter (4) Housing of the main stage (5) with spring-centered control spool (6) Control electronics (7) with amplifier to control the pilot control valve (1) and for the position control of the main control spool (6) inductive position transducer (8) for position sensing of the main control spool (6)
Functional description:
Control of the pilot control valve by means of a command value from 0 to ±10 V or from 0 to ± 10 mA Comparison command/actual value in the control electronics → In case of control deviation, the torque motor will be activated and the flapper plate will be deflected according to the control amplitude. Detuning of the control pressures using the control and fixed orifices → Deflection of the main control spool (6) Achievement of the position of the main control spool according to the command value presetting → Control deviation has been reduced to almost 0 V → Control process is completed Pilot oil supply to the pilot control valve internally via port P or externally via port X Pilot oil drain internally via port T or externally via Y to the tank
Notice:
In case of supply voltage failure, however with available operating pressure, the main control spool (6) will take an undefined position. The acceleration forces occurring in this connection may cause machine damage.
If a directional sandwich plate valve is used, the two control lines in the main stage will be short-circuited in case of power failure.
With control spool form E, E1- and Q2-, the centering spring (9, 10) bring the main control spool (6) in central position, V- and V1 control spools are switched to preferred direction P to B and A to T in a tolerance range of 1% to a maximum of 11% of the control spool stroke. In case of operating pressure failure and if no directional sandwich plate valve is used, you will observe the same behavior.
Type 4WRGE…-1X/…
Pilot oil supply external; pilot oil drain external
In this version, the pilot oil is supplied from a separate control circuit (externally).
The pilot oil drain is not directed into the T channel of the main valve, but is separately directed to the tank via port Y (externally).
Type 4WRGE…-1X/…E…
Pilot oil supply internal, pilot oil drain external
In this version, the pilot oil is supplied from the P channel of the main valve (internally).
The pilot oil drain is not directed into the T channel of the main valve, but is separately directed to the tank via port Y (externally). In the subplate, port X is to be closed.
Type 4WRGE…-1X/…ET…
Pilot oil supply internal, pilot oil drain internal
In this version, the pilot oil is supplied from the P channel of the main valve (internally).
The pilot oil is directly drained to channel T of the main valve (internally). In the subplate, ports X and Y are to be closed.
Type 4WRGE…-1X/…T…
Pilot oil supply external; pilot oil drain internal
In this version, the pilot oil is supplied from a separate control circuit (externally).
The pilot oil is directly drained to channel T of the main valve (internally). In the subplate, port Y is to be closed.
Position 1 and 2: Plug screw M6 DIN 906-8.8 SW 3
|
Pilot oil supply Section a - a |
External Internal |
1 1 |
closed open |
|
Pilot oil return Section b - b |
External Internal |
2 2 |
closed open |
|
Pilot oil supply Section a - a |
External Internal |
P P |
closed open |
|
Pilot oil return Section b - b |
External Internal |
1 1 |
closed open |
|
Pilot oil supply Section a - a |
External Internal |
1 1 |
closed open |
|
Pilot oil return Section b - b |
External Internal |
2 2 |
closed open |
measured with HLP46, ν = 32 mm2/s and ϑOil = 40 °C ± 5 °C
Pressure-signal characteristic curve (control spool V), ps = 210 bar
Zero flow at central control spool position "V"
Flow; control spools E and V with linear characteristic curve "L"
Flow; control spools E and V with inflected characteristic curve “P"
Flow; control spool Q2
Transition function with stepped electric input signals
Size 10
Frequency response
Size 10
Flow/load function with maximum valve opening (tolerance ±10 %)
Size 10
Transition function with stepped electric input signals
Size 16
Frequency response
Size 16
Flow/load function with maximum valve opening (tolerance ±10 %)
Size 16
Transition function with stepped electric input signals
NG25
Frequency response
NG25
Flow/load function with maximum valve opening (tolerance ±10 %)
NG25
Symbols
|
Symbol E1-, V1-: |
|
|
P → A: qv P → B: qv/2 |
B → T: qv/2 A → T: qv |
|
Notice: |
|
Type 4WRGE...-1X/...
Type 4WRGE...-1X/...E...
Type 4WRGE...-1X/...ET...
Type 4WRGE...-1X/...T...
|
Pin assignment |
Contact |
Assignment interface "A1" |
|
Supply voltage 1) |
A |
24 VDC (19 ... 35 VDC) |
|
B |
GND |
|
|
C |
n.c. |
|
|
Differential amplifier input (command value) |
D |
Command value (± 10 V / ± 10 mA) |
|
E |
Reference potential 2) |
|
|
Measuring output |
F |
Actual value (±10 V / ± 10 mA) vis-à-vis 0 V 3) |
|
PE |
Protective earthing conductor (connected directly to metal housing) |
|
|
1) |
Supply voltage +24 VDC ± 25 %; full bridge rectification with smoothing capacitor 2200 µF; Imax = 230 mA |
|
|
2) |
Current input ±10 mA → input resistance 100 Ω |
|
|
3) |
± 10 mA → maximum load resistance 1 kΩ |
|
Command value:
Positive command value at D and reference potential at E result in flow from P → A and B → T.
Negative command value at D and reference potential at E result in flow from P → B and A → T.
Connection cable:
Recommendation:
up to 25 m cable length type LiYCY 7 x 0.75 mm² up to 50 m cable length type LiYCY 7 x 1.0 mm² External diameter 6.5 … 11 mm Connect shield to PE only on the supply side.
Notice:
Electrical signals provided via control electronics (e.g. actual value) must not be used to switch off safety-relevant machine functions!
Block diagram / pin assignment
Size 10
Dimensions in mm
|
1 |
Pilot control valve |
|
2 |
Directional sandwich plate valve (only included with version “WG152”) |
|
3 |
Mating connector, separate order |
|
4 |
Mating connector, separate order |
|
5 |
Main valve |
|
6 |
Integrated electronics (OBE) |
|
7 |
Name plate |
|
8 |
Identical seal rings for ports A, B, P, and T |
|
9 |
Identical seal rings for ports X and Y |
|
10 |
Cabling |
|
11 |
Space required to remove the mating connector |
|
12 |
Space required to remove the mating connector |
|
13 |
Machined valve contact surface; Porting pattern according to ISO 4401-05-05-0-05 |
Valve mounting screws (separate order):
4 hexagon socket head cap screws ISO 4762 - M6 x 45 - 10.9-flZn-240h-L
Tightening torque MA = 13.5 Nm ± 10 % , material no. R913000258
Notice:
For reasons of stability, exclusively these valve mounting screws may be used. The tightening torque of the hexagon socket head cap screws refers to maximum operating pressure!
Size 16
Dimensions in mm
|
1 |
Pilot control valve |
|
2 |
Directional sandwich plate valve (only included with version “WG152”) |
|
3 |
Mating connector, separate order |
|
4 |
Mating connector, separate order |
|
5 |
Main valve |
|
6 |
Integrated electronics (OBE) |
|
7 |
Name plate |
|
8 |
Identical seal rings for ports A, B, P, and T |
|
9 |
Identical seal rings for ports X and Y |
|
10 |
Cabling |
|
11 |
Space required to remove the mating connector |
|
12 |
Space required to remove the mating connector |
|
13 |
Machined valve contact surface; Porting pattern according to ISO 4401-07-07-0-05 |
|
14 |
Locking pin |
Valve mounting screws (separate order):
2 hexagon socket head cap screws ISO 4762 - M6 x 60 - 10.9-flZn-240h-L
Tightening torque MA = 12.2 Nm ± 10 % , material no. R913000115
4 hexagon socket head cap screws ISO 4762 - M10 x 60 - 10.9-flZn-240h-L
Tightening torque MA = 58 Nm ± 20 %, material no. R913000116
Notice:
For reasons of stability, exclusively these valve mounting screws may be used. The tightening torque of the hexagon socket head cap screws refers to maximum operating pressure!
NG25
Dimensions in mm
|
1 |
Pilot control valve |
|
2 |
Directional sandwich plate valve (only included with version “WG152”) |
|
3 |
Mating connector, separate order |
|
4 |
Mating connector, separate order |
|
5 |
Main valve |
|
6 |
Integrated electronics (OBE) |
|
7 |
Name plate |
|
8 |
Identical seal rings for ports A, B, P, and T |
|
9 |
Identical seal rings for ports X and Y |
|
10 |
Cabling |
|
11 |
Space required to remove the mating connector |
|
12 |
Space required to remove the mating connector |
|
13 |
Machined valve contact surface; Porting pattern according to ISO 4401-08-08-0-05 |
|
14 |
Locking pin |
Valve mounting screws (separate order):
6 hexagon socket head cap screws ISO 4762 - M12 x 60 - 10.9-flZn-240h-L
Tightening torque MA = 100 Nm ± 20 %, material no. R913000121
Notice:
For reasons of stability, exclusively these valve mounting screws may be used. The tightening torque of the hexagon socket head cap screws refers to maximum operating pressure!
Mating connectors for valves with connector “K4”, without circuitry, standard
3P Z4
Mating connectors for valves with connector “K4”, without circuitry, standard
3P Z4
For valves with connector “K4” according to EN 175301-803 and ISO 4400, 2-pole + PE, “large cubic connector” Mating connectors for valves with one or two solenoids (individual connection)Data sheet
Spare parts & repair
Mating connectors for valves with round connector, 6-pole + PE
7P Z31
Mating connectors for valves with round connector, 6-pole + PE
7P Z31
For valves with round connector according to EN 175201-804, 6-pole + PE as well as 6-pole, compatible with VG 95328Data sheet
Spare parts & repair
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