DR10-4-4X/315YM
Manufacturer: Bosch Rexroth
Material #: R900419996
Model : DR10-4-4X/315YM
***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 DR10-4-4X/315YM (R900419996) is a highly efficient pilot-operated pressure reducing valve designed for subplate mounting to regulate system pressure. This valve features a screw-in cartridge and an optional check valve, ensuring versatility in application. In its default state, the DR10-4-4X/315YM allows hydraulic fluid to flow freely from the inlet to the outlet channel. The pressure at the outlet is controlled by a spring-loaded main control spool which reacts to changes in system pressure.
When the outlet pressure surpasses the spring's set value, the pilot poppet activates, allowing fluid from the main control spool to flow into the spring chamber, thus adjusting the spool's position and maintaining consistent outlet pressure as set by the spring. It's important to note that this model requires an external pilot oil return via port Y.
The optional check valve in version P permits unobstructed return flow from channel A to B. The DR10-4-4X/315YM offers various adjustment types for convenience, including a rotary knob, sleeve with hexagon and protective cap, lockable rotary knob with scale, and a rotary knob with scale for precise control.
This model adheres to ISO porting patterns and is suitable for applications requiring maximum operating pressures up to bar levels specified by Bosch Rexroth component series X standards. The external pressure at port Y contributes to the set reduced pressure, enhancing its functionality within hydraulic systems that demand reliable and accurate pressure regulation.
$1,039.00 USD
More are expected on April 24, 2025
Status: This product is temporarily out of stock.
Qty: Delivered as early as April 24, 2025 when ordered in
This product is eligible for factory repair.
The pressure valve type DR is a pilot-operated pressure reducing valve. It is used to reduce the system pressure.
It mainly consists of screw-in cartridge valve (cartridge) and housing, optionally with or without check valve (subplate mounting only).
In the rest position the valve is open. The hydraulic fluid is able to flow freely from the inlet channel via the main control spool (1) to the outlet channel. The pressure in the outlet channel is applied to the spring-loaded side of the main control spool (1) via the bore (2). At the same time, the pressure acts upon the side of the main control spool (1) that is opposite to the spring via the bores (3) and (4).
If the pressure in the outlet channel exceeds the value set at the spring (6), the pilot poppet (5) opens.
Hydraulic fluid flows from the spring-loaded side of the main control spool (1) via the nozzle (7) and the pilot poppet (5) into the spring chamber (8).
The main control spool (1) assumes its control position and keeps the value in the outlet channel set at the spring (6) constant. The pilot oil return from the spring chamber (8) is always realized externally via the Y port (9).
In subplate mounting version "P", a check valve (10) can be optionally installed for free return flow from channel A to B.
Type DR 10 -4-4X/…
Type DR 20 G-4-4X/…
Notice!
The pressure in port Y is added 1:1 to the set reduced pressure.
(measured with HLP46, ϑOil = 40 ±5 °C)
Minimum adjustable output pressure P dependent on the flow qV (B to A)
Pilot flow qV st dependent on the flow qV (B to A) and the pressure differential Δp
Δpmin-qV characteristic curve (B to A)
Δp-qV characteristic curve (B to A)
Type DR . .-.-4X/.Y
Subplate mounting
Type DR . .-.-4X/.YM, Type DR . K-.-1X/.YM (screw-in cartridge valve)
Subplate mounting, screw-in cartridge valve
Type DR . G-.-4X/.YM
Threaded connection
Subplate mounting
Dimensions in mm
Subplate mounting
Dimensions in mm
|
1 |
Adjustment type "4" |
|
2 |
Adjustment type "5" |
|
3 |
Adjustment type "6" |
|
4 |
Adjustment type "7" |
|
5 |
Lock nut SW22 |
|
6 |
Hexagon SW10 |
|
7 |
Hexagon SW30, tightening torque for screw-in MA = 50 Nm |
|
8 |
Space required to remove the key |
|
9 |
Locking pin |
|
10 |
Valve mounting bores |
|
11 |
Name plate |
|
12 |
Identical seal rings for ports A and B |
|
13 |
Seal ring for port Y |
|
Type |
L1 |
L2 |
L3 |
L4 |
L5 |
L6 |
B1 |
B2 |
B3 |
B4 |
H1 |
H2 |
H3 |
H4 |
ØD1 |
ØD2 |
ØD3 |
|
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
|
| DR10 | 95.5 | 79 | 42.9 | 23 | 2.5 | 21.5 | 85 | 49 | 66.7 | 7.9 | 71 | 60 | 26 | 26 | 35.5 | 21.8 | 15 |
| DR20 | 96 | 79.5 | 60.3 | 7 | 4 | 39.7 | 100 | 58 | 79.4 | 6.4 | 96 | 78 | 26 | 40 | 41 | 34.8 | 25 |
Threaded connection "G"
Dimensions in mm
|
1 |
Adjustment type "4" |
|
2 |
Adjustment type "5" |
|
3 |
Adjustment type "6" |
|
4 |
Adjustment type "7" |
|
5 |
Lock nut SW22 |
|
6 |
Hexagon SW10 |
|
7 |
Hexagon SW30, tightening torque for screw-in MA = 50 Nm |
|
8 |
Space required to remove the key |
|
10 |
Valve mounting bores |
|
11 |
Name plate |
|
14 |
Y port for pilot oil return |
|
Type |
D1 |
ØD2 |
|
mm |
||
| DR 10G | G1/2 | 34 |
| DR 15G | G3/4 | 42 |
| DR 20G | G1 | 47 |
Notice!
In this valve version, no check valve for free return flow is installed in the valve.
Screw-in cartridge valve "K"
Dimensions in mm
|
1 |
Adjustment type "4" |
|
2 |
Adjustment type "5" |
|
3 |
Adjustment type "6" |
|
4 |
Adjustment type "7" |
|
5 |
Lock nut SW22 |
|
6 |
Hexagon SW10 |
|
7 |
Hexagon SW30, tightening torque for screw-in MA = 50 Nm |
|
8 |
Space required to remove the key |
|
15 |
Seal ring |
|
16 |
Support ring |
Mounting cavity
Dimensions in mm
Notice!
Optionally, the connection bores A, B and Y can be applied at the circumference.
Subplates (separate order)
Size 10:G 460/01 (G3/8)
G 461/01 (G1/2)
Size 25:G 412/01 (G3/4)
G 413/01(G1)
Valve mounting screws (separate order)
Size 10:4 hexagon socket head cap screws ISO 4762 - M10 x 40 - 10.9-flZn-240h-L
(friction coefficient μtotal = 0.09 to 0.14);
Tightening torque MA = 75 Nm ± 10 %
Size 25:4 hexagon socket head cap screws ISO 4762 - M10 x 50 - 10.9-flZn-240h-L
(friction coefficient μtotal = 0.09 to 0.14);
Tightening torque MA = 75 Nm ± 10 %
Notice!
The tightening torques stated are guidelines when using screws with the specified friction coefficients and when using a manual torque wrench (tolerance ± 10 %).
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