PROPORTIONAL DIRECTIONAL VALVE 4WRE6W16-2X/G24K4/V
Manufacturer: Bosch Rexroth
Material #: R900944121
Model : 4WRE6W16-2X/G24K4/V
***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 4WRE6W16-2X/G24K4/V (R900944121) is a state-of-the-art industrial hydraulic valve that offers precise control over the direction and flow of oil in hydraulic systems. This direct-actuated spool valve integrates electrical actuation with external electronics, ensuring high accuracy through internal piston position feedback. The spool symbol W indicates its specific flow pattern capabilities.
This valve is designed for subplate mounting with a porting pattern that adheres to ISO standards, making it widely compatible with various hydraulic systems. It operates using proportional solenoids that feature a central thread and can be equipped with detachable coils for ease of maintenance. The size of the valve is tailored to accommodate the necessary flow rates, and it comes equipped with an electrical connection described as Connector pole PE according to EN.
Capable of handling a maximum operating pressure of up to bar and supporting a maximum flow rate of l/min, this robust component is ideal for demanding industrial applications. Its integrated electronics are housed within the unit, providing reliable performance and simplifying system integration.
The valve's construction includes FKM seals which offer compatibility with an array of hydraulic fluids such as HL, HLP, HLPD, HVLP, HVLPD, HETG, HEES, HEPG, HFDU, and HFDR. It also features a spring-centered control spool that ensures reliable return to neutral position when de-energized. The design takes into account potential internal leakage which may occur over time due to its operational nature.
In summary, the Bosch Rexroth 4WRE6W16-2X/G24K4/V (R900944121) is engineered for those who require precise control in their hydraulic systems along with durability and reliability in industrial settings. Its advanced features make it an essential component for optimal hydraulic performance.
$2,054.00 USD
More are expected on October 16, 2024
Status: This product is temporarily out of stock.
Qty: Delivered as early as October 16, 2024 when ordered in
This product is eligible for factory repair.
Size 6, symbol W, external amplifier, 24 V DC
Industrial hydraulic valve in a high performance range. Reliable control of the direction of the oil flow according to hydraulic symbol. High accuracy thanks to internal piston position feedback
Unpacked Weight: 2.15 kg
Direct operated proportional directional valve with electrical position feedback and external electronics Control of flow direction and size Operation by means of proportional solenoids with central thread and detachable coil For subplate mounting: Porting pattern according to ISO 4401 Spring-centered control spool
Type 4WRE...-2X/...
The 4/2 and 4/3 proportional directional valves are designed as direct operated devices in plate design. Operation by means of proportional solenoids with central thread and detachable coil. The solenoids are controlled by external electronics.
Set-up:
The valve basically consists of:
Housing (1) with connection surface Control spool (2) with compression springs (3 and 4) and spring plates (5 and 6) Solenoids (7 and 8) with central thread Position transducer (9)Function:
With de-energized solenoids (7 and 8), central position of the control spool (2) due to compression springs (3 and 4) between the spring plates (5 and 6) Direct actuation of the control spool (2) by the control of one proportional solenoid, e. g. solenoid "b" (8) Control spool (2) is moved to the left in proportion to the electrical input signal Connection from P to A and B to T via orifice-type cross-sections with progressive flow characteristics Switching off of the solenoid (8) Control spool (2) is returned to the central position by the compression spring (3)In the de-energized state, the control spool (2) is held in a mechanical central position by the return spring of the solenoids. With control spool symbol "V", this position does not correspond to the hydraulic central position! When the electric valve control loop is closed, the control spool is positioned in the hydraulic central position.
Important notice:
The PG fitting (11) must not be opened. Mechanical adjustment of the adjustment nut located below is prohibited and damages the valve!
Valve with two spool positions: (Type 4WRE…A...)
The function of this valve version basically corresponds to the valve with three spool positions. The 2 spool position valve is, however, only equipped with solenoid “a” (7). Instead of the 2nd proportional solenoid, a plug screw (10) is installed.
Notice:
Due to the design principle, internal leakage which may increase over the life cycle is inherent to the valves.
Notice:
The tank line must not be allowed to run empty. With corresponding installation conditions, a preload valve (preload pressure approx. 2 bar) must be installed.
(measured with HLP46, ϑÖl = 40 ±5 °C)
Zero flow with central control spool position “V32”
NG6
Rated flow 4 l/min at a valve pressure differential of 10 bar
NG6
Rated flow 8 l/min at a valve pressure differential of 10 bar
NG6
Rated flow 16 l/min at a valve pressure differential of 10 bar
NG6
Rated flow 32 l/min at a valve pressure differential of 10 bar
NG6
Load function with maximum valve opening;Rated flow 4, 8, 16 and 32 l/min;Control spool V
NG6
Symbols
|
With symbol E1-, V1- and W1-, the following applies: |
|
|
P → A: qvmax |
B → T: qv/2 |
|
P → B: qv/2 |
A → T: qvmax |
|
Notice: |
|
Connection at connector
Connection at mating connector
Inductive position transducer
4WRE 6
Dimensions in mm
|
1 |
Valve housing |
|
2 |
Proportional solenoid "a" with inductive position transducer |
|
3 |
Proportional solenoid "b" |
|
4 |
Mating connector "A", color gray, separate order |
|
5 |
Mating connector "B", color black, separate order |
|
6 |
Mating connector for inductive position transducer, separate order |
|
7 |
Plug screw for valves with one solenoid (2 spool positions, version "EA" or "WA") |
|
8 |
Identical seal rings for ports A, B, P, and T |
|
9 |
Space required to remove the mating connector |
|
10 |
Name plate |
|
11 |
Machined valve contact surface; Porting pattern according to ISO 4401-03-02-0-05 (with locating hole) |
Recommended valve mounting screws (separate order):
4 hexagon socket head cap screws ISO 4762 - M5 x 50 - 10.9-flZn-240h-L
tightening torque MA = 7 Nm ± 10%, material no. R913000064 or
4 hexagon socket head cap screws ISO 4762 - M5 x 50 - 10.9
tightening torque MA = 8.9 Nm ± 10%
|
1 |
Valve housing |
|
2 |
Proportional solenoid "a" with inductive position transducer |
|
3 |
Proportional solenoid "b" |
|
4 |
Mating connector "A", color gray, separate order |
|
5 |
Mating connector "B", color black, separate order |
|
6 |
Mating connector for inductive position transducer, separate order |
|
7 |
Plug screw for valves with one solenoid (2 spool positions, version "EA" or "WA") |
|
8 |
Identical seal rings for ports A, B, P and T (T1) |
|
9 |
Space required to remove the mating connector |
|
10 |
Name plate |
|
11 |
Machined valve contact surface; Porting pattern according to ISO 4401-05-04-0-05 |
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
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