DR10-4-4X/200YM
Manufacturer: Bosch Rexroth
Material #: R900493531
Model : DR10-4-4X/200YM
***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/200YM (R900493531) is a pilot-operated pressure reducing valve designed to effectively manage system pressure by reducing it to a desired level. This valve primarily comprises a screw-in cartridge and a housing, with optional configurations that include either a check valve or not, and is exclusively intended for subplate mounting. In its default state, the DR10-4-4X/200YM allows hydraulic fluid to flow unobstructed from the inlet to the outlet channel, with system pressure applied against a spring-loaded control spool within the valve.
The functionality of this valve is dictated by the pressure in the outlet channel; when this exceeds a pre-set value determined by an adjustable spring, a pilot poppet mechanism triggers. This causes hydraulic fluid to be redirected from the main control spool through specific nozzles and into the spring chamber, prompting the main control spool to adjust and maintain constant outlet pressure as set by the spring tension.
For applications requiring free return flow from channel A to B, an optional check valve can be installed in the subplate-mounted version P of this model. The DR10-4-4X/200YM features various adjustment types for user convenience such as a rotary knob, sleeve with hexagon and protective cap, lockable rotary knob with scale or rotary knob with scale. It adheres to ISO porting patterns for secure and standardized installation.
This model operates effectively within its specified maximum operating pressure limits as denoted in its component series. It is important to note that any pressure present at port Y will contribute to the set reduced pressure level. The DR10-4-4X/200YM's design ensures reliable performance in controlling hydraulic system pressures across various applications without compromising efficiency or safety.
$1,039.00 USD
More are expected on November 27, 2024
Status: This product is temporarily out of stock.
Qty: Delivered as early as November 27, 2024 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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