4WMDA6D5X/F/V
Manufacturer: Bosch Rexroth
Material #: R900405380
Model : 4WMDA6D5X/F/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 4WMDA6D5X/F/V (R900405380) is a high-performance directional spool valve designed for precise control of start, stop, and flow direction in hydraulic systems. This valve falls under the WM series, characterized by their mechanically and manually actuated design. The 4WMDA6D5X/F/V model features a lockable rotary knob for actuation, ensuring secure positioning during operations. Its robust construction includes a durable housing, a control spool, and one or two return springs that hold the control spool in its central or initial position when not energized.
Equipped with a detent mechanism, this particular model allows each spool position to be locked as required, providing stability and reliability in various applications. The valve is also designed to accommodate a throttle insert in channel P to manage any excessive flows that might occur during switching processes – an essential feature for maintaining performance within the valve's limits.
This specific model adheres to international standards with a porting pattern according to DIN form A without locating holes and ISO with locating holes. For user convenience and enhanced functionality, it comes with options for inductive position switches and proximity sensors that operate without contact. The 4WMDA6D5X/F/V has a size component series X, can withstand a maximum operating pressure of up to 350 bar, and is capable of handling maximum flow rates of up to 70 l/min. This combination of features makes it an adaptable solution suited for various hydraulic applications requiring precise directional control without electrical power.
$1,146.00 USD
More are expected on May 19, 2025
Status: This product is temporarily out of stock.
Qty: Delivered as early as May 19, 2025 when ordered in
This product is eligible for factory repair.
Type WM.. valves are mechanical, manually actuated directional spool valves. They control the start, stop and direction of a flow. Directional valves basically consist of housing (1), one type of actuation (2) (lockable rotary knob), control spool (3) and one or two return springs (4). In de-energized state, the return springs (4) maintain the control spool (3) in central or starting position - if the rotary knob is actuated with a detent. The control spool (3) is moved to the desired spool position by means of the type of actuation (2).
Detent
Directional valves with rotary knob are generally designed with detent. Directional valves with hand lever are optionally available as 2 or 3 position valves with detent. Directional valves with roller plunger are generally designed without detent. If types of actuation with detent are used, each spool position can be locked, depending on the valve type.
Throttle insert
The use of a throttle insert is required when due to prevailing operating conditions, flows can occur during the switching processes, which exceed the performance limit of the valve. It is inserted in channel P of the directional valve.
Type 4WMDA 6 E5X/F
Type 4WM. 6 ..5X/..B..
(measured with HLP46, ϑOil = 40 ±5 °C)
Δp-qV characteristic curves
|
7 |
Symbol “R” in spool position "b" (A → B) |
|
8 |
Symbols “G” and “T” in central position (P → T) |
|
Symbols |
Direction of flow |
|||
|
P-A |
P-B |
A-T |
B-T |
|
|
A |
3 |
3 |
– |
– |
|
B |
3 |
3 |
– |
– |
|
C |
1 |
1 |
3 |
1 |
|
D |
5 |
5 |
3 |
3 |
|
E |
3 |
3 |
1 |
1 |
|
F |
1 |
3 |
1 |
1 |
|
G |
6 |
6 |
9 |
9 |
|
H |
2 |
4 |
2 |
2 |
|
J |
1 |
1 |
2 |
1 |
|
L |
3 |
3 |
4 |
9 |
|
M |
2 |
4 |
3 |
3 |
|
P |
3 |
1 |
1 |
1 |
|
Q |
1 |
1 |
2 |
1 |
|
R |
5 |
5 |
4 |
– |
|
T |
10 |
10 |
9 |
9 |
|
U |
3 |
3 |
9 |
4 |
|
V |
1 |
2 |
1 |
1 |
|
W |
1 |
1 |
2 |
2 |
|
Y |
5 |
5 |
3 |
3 |
Performance limits
(measured with HLP46, ϑOil = 40 ±5 °C)
Notice!
The specified switching power limits are valid for use with two directions of flow (e. g. from P to A and simultaneous return flow from B to T).
Due to the flow forces acting within the valves, the admissible switching power limits may be considerably lower with only one direction of flow (e. g. from P to A while port B is blocked)!
In such use cases, please consult us
|
Characteristic curve |
Symbol |
|
1 |
E, E1–, M, H, C, D, Y, Q, U, W |
|
2 |
J, L |
|
3 |
A, B |
|
4 |
G, P |
|
5 |
F |
|
6 |
V |
|
7 |
R |
|
8 |
T |
| 1)Example: | |
| Symbol E with spool position "a" → ordering code ..EA.. | |
| Symbol E with spool position “b" → ordering code ..EB.. | |
| 3)Symbol E1-: P → A/B pre-opening | |
| Caution in conjunction with differential cylinders due to pressure intensification! |
Notes!
Representation according to DIN ISO 1219-1.
Hydraulic interim positions are shown by dashes.
|
Type of actuation |
|
Rotary knob “WMDA” |
|
|
|
|
Dimensions in mm
Dimensions in mm
|
1 |
Name plate |
|
3 |
Identical seal rings for ports A, B, P, and T |
Subplates according to data sheet 45052 (separate order)
(without locating hole)
G 341/01 (G1/4)
G 342/01 (G3/8)
G 502/01 (G1/2)
(with locating hole)
G 341/60 (G1/4)
G 342/60 (G3/8)
G 502/60 (G1/2)
G 341/12 (SAE-6)1)
G 342/12 (SAE-8)1)
G 502/12 (SAE-10)1)
1) On request
Valve mounting screws (separate order)
Clamping length 42 mm:4 hexagon socket head cap screws, metric
ISO 4762 - M5 x 50 - 10.9-flZn-240h-L
(friction coefficient μtotal = 0.09 to 0.14);
tightening torque MA = 7 Nm ± 10 %,
material no. R913000064
or
4 hexagon socket head cap screws
ISO 4762 - M5 x 50 - 10.9 (self procurement)
(friction coefficient μtotal = 0.12 to 0.17);
tightening torque MA = 8.1 Nm ± 10 %
4 hexagon socket head cap screws UNC
10-24 UNC x 2″ ASTM-A574
(friction coefficient μtotal = 0.19 to 0.24);
tightening torque MA = 11 Nm ± 15 %,
(friction coefficient μtotal = 0.12 to 0.17);
tightening torque MA = 8 Nm ± 10 %,
material no. R978800693
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