BOSCH REXROTH
R900497035
$1,102.38 USD
- BOSCH REXROTH
- Material:R900497035
- Model:DR10-6-4X/315YM
Quantity in stock: 0
The Bosch Rexroth DR10-6-4X/315YM (R900497035) is a sophisticated pilot-operated pressure reducing valve designed for subplate mounting and is integral in maintaining system pressure within hydraulic circuits. This valve features a screw-in cartridge and a housing that can be optionally equipped with a check valve for one-way free flow. In its default state, the DR10-6-4X/315YM allows hydraulic fluid to flow freely from the inlet to the outlet, with system pressure being regulated by the main control spool in response to spring tension. This model operates by utilizing a pilot poppet that opens when outlet channel pressure surpasses the spring's set value, allowing fluid to flow through and adjust the main control spool position accordingly. This action stabilizes the output pressure at a constant level as determined by the spring setting. The valve's design ensures that pilot oil is always returned externally via port Y. For applications requiring backflow prevention, this model can be fitted with an optional check valve in subplate mounting version P. The DR10-6-4X/315YM conforms to ISO porting patterns and offers various adjustment types including rotary knob, sleeve with hexagon and protective cap, lockable rotary knob with scale, and rotary knob with scale options for precise control. With a maximum operating pressure of up to 315 bar, this valve is suitable for various hydraulic applications where precise pressure reduction is needed. It should be noted that any pressure present in port Y will contribute to the set reduced pressure value. The component series X signifies its modern design and adherence to current engineering standards, ensuring reliability and performance in demanding operational conditions.
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.
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01 |
02 |
03 |
04 |
05 |
06 |
07 |
08 |
09 |
10 |
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DR |
– |
– |
/ |
Y |
* |
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01 |
Pressure reducing valve |
DR |
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02 |
Size 10 |
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Subplate mounting "no code" |
10 |
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Threaded connection "G" (G1 1/2) |
10 |
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Size 25 |
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Subplate mounting "no code" |
20 |
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Threaded connection "G" (G3/4) |
15 |
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Threaded connection "G" (G1) |
20 |
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Screw-in cartridge valve "K" |
20 |
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03 |
Subplate mounting |
no code |
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Threaded connection |
G |
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Cartridge valve |
K |
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Adjustment type |
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04 |
Rotary knob |
4 |
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Sleeve with hexagon and protective cap |
5 |
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Lockable rotary knob with scale |
6 1) |
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Rotary knob with scale |
7 |
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05 |
Component series 10 ... 19 (10 ... 19: unchanged installation and connection dimensions); (03 = "K") |
1X |
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Component series 40 ... 49 (40 ... 49: unchanged installation and connection dimensions); (03 = "no code" and "G") |
4X |
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Pressure rating |
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06 |
Set pressure up to 50 bar |
50 |
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Set pressure up to 100 bar |
100 |
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Set pressure up to 200 bar |
200 |
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Set pressure up to 315 bar |
315 |
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07 |
Internal pilot oil supply, external pilot oil return |
Y |
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08 |
With check valve (subplate mounting only) |
no code |
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Without spring return |
M |
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Seal material |
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09 |
NBR seals |
no code |
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FKM seals |
V |
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Observe compatibility of seals with hydraulic fluid used. (Other seals upon request) |
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10 |
Further details in the plain text |
* |
| 1) H-key with material no. R900008158 is included in the scope of delivery |
Notice! Preferred types and standard units are specified in the EPS (standard price list).
general
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Size |
10 | 25 | ||
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Weight |
Subplate mounting |
kg |
3.2 | 3.5 |
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Cartridge valve |
kg |
2.5 | 2.8 | |
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Threaded connection |
kg |
3.6 | 3.3 | |
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Installation position |
any | |||
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Ambient temperature range |
NBR seals |
°C |
-30 … +80 | |
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FKM seals |
°C |
-20 … +80 | ||
hydraulic
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Size |
10 | 25 | ||
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Nominal pressure |
bar |
315 | ||
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Maximum operating pressure |
Inlet |
bar |
315 | |
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Maximum secondary pressure |
Outlet |
bar |
50 100 200 315 |
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Maximum counter pressure |
Port Y |
bar |
250 | |
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Set pressure |
Minimum |
flow-dependent, see characteristic curves | ||
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Maximum |
bar |
50 100 200 315 |
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Maximum flow |
Subplate mounting |
l/min |
80 | 160 |
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Threaded connection |
l/min |
80 | 160 | |
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Hydraulic fluid |
see table | |||
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Hydraulic fluid temperature range |
NBR seals |
°C |
-30 … +80 | |
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FKM seals |
°C |
-20 … +80 | ||
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Viscosity range |
mm²/s |
10 … 800 | ||
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Maximum admissible degree of contamination of the hydraulic fluid 1) |
Class 20/18/15 according to ISO 4406 (c) | |||
| 1) | The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and simultaneously increases the life cycle of the components. For the selection of the filters, see www.boschrexroth.com/filter. |
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Hydraulic fluid |
Classification |
Suitable sealing materials |
Standards |
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Mineral oils |
HL,HLP |
NBR, FKM |
DIN 51524 |
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Bio-degradable |
Insoluble in water |
HETG |
NBR, FKM |
VDMA 24568 |
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HEES |
FKM |
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Soluble in water |
HEPG |
FKM |
VDMA 24568 |
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Containing water |
Water-free |
HFDU, HFDR |
FKM |
ISO 12922 |
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Containing water |
HFC (Fuchs Hydrotherm 46M, Petrofer Ultra Safe 620) |
NBR |
ISO 12922 |
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Important information on hydraulic fluids! For further information and data on the use of other hydraulic fluids, please refer to data sheet 90220 or contact us! There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.)! The flash point of the hydraulic fluid used must be 40 K higher than the maximum surface temperature.Flame-resistant – containing water: The maximum pressure differential per control edge is 210 bar. Otherwise, there is increased cavitation erosion. Maximum hydraulic fluid temperature 60 °C Life cycle as compared to operation with mineral oil HLP 30 to 100 % |
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For applications outside these parameters, please consult us!
(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" |
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2 |
Adjustment type "5" |
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3 |
Adjustment type "6" |
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4 |
Adjustment type "7" |
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5 |
Lock nut SW22 |
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6 |
Hexagon SW10 |
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7 |
Hexagon SW30, tightening torque for screw-in MA = 50 Nm |
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8 |
Space required to remove the key |
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9 |
Locking pin |
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10 |
Valve mounting bores |
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11 |
Name plate |
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12 |
Identical seal rings for ports A and B |
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13 |
Seal ring for port Y |
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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 |
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| 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" |
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2 |
Adjustment type "5" |
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3 |
Adjustment type "6" |
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4 |
Adjustment type "7" |
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5 |
Lock nut SW22 |
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6 |
Hexagon SW10 |
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7 |
Hexagon SW30, tightening torque for screw-in MA = 50 Nm |
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8 |
Space required to remove the key |
|
10 |
Valve mounting bores |
|
11 |
Name plate |
|
14 |
Y port for pilot oil return |
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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" |
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3 |
Adjustment type "6" |
|
4 |
Adjustment type "7" |
|
5 |
Lock nut SW22 |
|
6 |
Hexagon SW10 |
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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 %).