DR10G4-4X/200YM/12
Manufacturer: Bosch Rexroth
Material #: R900921666
Model : DR10G4-4X/200YM/12
***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 DR10G4-4X/200YM/12 (R900921666) is a high-quality pilot-operated pressure reducing valve designed for subplate mounting, with the primary function of reducing system pressure. This valve features a screw-in cartridge and an optional housing, which can be equipped with or without a check valve. Its operational design ensures that in the rest position, the valve facilitates free flow of hydraulic fluid from the inlet to the outlet channel. The outlet pressure is regulated by a spring-loaded main control spool, which adjusts based on the set value when influenced by changes in system pressure.
This model sustains its control position to maintain consistent pressure in the outlet channel as determined by the spring setting. The external pilot oil return is managed via the Y port, ensuring efficient operation. For enhanced versatility, this DR series valve can optionally be fitted with a check valve for unobstructed return flow from channel A to B.
The DR10G4-4X/200YM/12 offers various adjustment types to suit different application needs, including a rotary knob, sleeve with hexagon and protective cap, lockable rotary knob with scale, and rotary knob with scale. It adheres to ISO porting patterns for reliable integration into various hydraulic systems.
Designed for demanding applications, this Bosch Rexroth valve has a maximum operating pressure bar that aligns with its size and component series X specifications. Users can expect precise control and dependable performance from this advanced pressure reducing valve in their hydraulic systems.
$828.00 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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