BOSCH REXROTH
R900500547
$771.55 USD
- BOSCH REXROTH
- Material:R900500547
- Model:DR10DP2-4X/75YM
Quantity in stock: 0
The Bosch Rexroth DR10DP2-4X/75YM (R900500547) is a high-performance industrial hydraulic valve designed for reliable pressure reduction to a set value. This spool valve is directly actuated and features a P A spool symbol, indicating its function in controlling the flow from channel B to channel A. The valve operates under a maximum pressure, with the ability to manage max flow rates efficiently. This model, suitable for subplate mounting, adheres to the CETOP D size standards and connects according to ISO diagrams. It is equipped with NBR seals and is compatible with various hydraulic fluids including HL, HLP, HLPD, HVLP, HVLPD, and HFC. The mechanical actuation of this valve allows for precise secondary pressure settings via an adjustment mechanism. In its default state, the DR10DP2-4X/75YM valve permits unrestricted flow from B to A while maintaining constant pressure levels in channel A through an internal control line that activates against a compression spring if exceeded set values. An external force that increases pressure in channel A will cause further displacement of the control spool against the spring tension, allowing excess fluid to discharge into the tank through channel TY. The design includes an external leakage oil discharge from the spring chamber through channel TY and has provisions for an optional check valve installation for free flow back from A to B. Additionally, it has a pressure gauge connection for monitoring secondary pressure. The DR10DP2-4X/75YM offers various adjustment types such as rotary knobs (standard or lockable with scale), threaded pins with hexagon and protective cap, ensuring versatility for different system requirements. Its robust construction ensures reliability in maintaining system pressures within safe operating parameters.
Size 10, P → A, mechanically actuated
Industrial hydraulic valve in a high performance range. Reliable pressure reduction to setting value.
Unpacked Weight: 3.04 kg
The valve type DR 10 DP is a direct operated pressure reducing valve in 3-way version, i. e. with pressure limitation of the secondary circuit.
It is used to limit a system pressure.
The secondary pressure is set via the adjustment type (1).
The valve is open in initial position. Hydraulic fluid can flow from channel B to channel A without restrictions. The pressure in channel A is simultaneously applied via the control line (4) at the piston area opposite the compression spring (3). If the pressure in channel A exceeds the value set at the compression spring (3), the control spool (2) moves to control position and keeps the set pressure in channel A at a constant level.
Signal and pilot oil are supplied internally via the control line (4) from channel A.
If the pressure in channel A increases further due to an external force effect at the actuator, it pushes the control spool (2) even further against the compression spring (3).
In this way, channel A is connected to channel T(Y) via the control edge (5) at the control spool (2). So much hydraulic fluid is discharged into the tank that the pressure can only increase slightly.
The leakage oil discharge from the spring chamber (6) is always effected externally via channel T(Y).
For the free flow back from channel A to channel B, a check valve (7) can optionally be installed.
A pressure gauge connection (8) allows for the control of the secondary pressure.
Type DR 10 DP1-4X/.Y…
| Spool valve |
| Direct actuated |
| Maximum operating pressure 210 bar |
| Component series 4X |
| Maximum flow 80 l/min |
| Size 10 |
| Data Sheet | Download Data Sheet |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Spool symbol | P → A |
| Max. pressure | 315 |
| Productgroup ID | 9,10,11,12,13,14 |
| Number of ports | 3 |
| Type of actuation | with mechanical actuation |
| Size | 10 |
| Max. flow | 80 |
| Type of connection | Subplate mounting |
| Size_CETOP | D05 |
| Connection diagram | ISO 5781-06-07-0-16 |
| Number of switching positions | 3 |
| Weight | 3.04 |
| Seals | NBR |
| Hydraulic fluid | HL,HLP,HLPD,HVLP,HVLPD,HFC |
|
01 |
02 |
03 |
04 |
05 |
06 |
07 |
08 |
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|
DR 10 DP |
– |
4X |
/ |
Y |
* |
|
01 |
Pressure reducing valve, direct operated, size 10 |
DR 10 DP |
|
Adjustment type |
||
|
02 |
Rotary knob |
1 |
|
Grub screw with hexagon and protective cap |
2 |
|
|
Lockable rotary knob with scale |
31) |
|
|
Rotary knob with scale |
7 |
|
|
03 |
Component series 40 … 49 (40 … 49: unchanged installation and mounting dimensions) |
4X |
|
04 |
Maximum secondary pressure 25 bar |
25 |
|
Maximum secondary pressure 75 bar |
75 |
|
|
Maximum secondary pressure 150 bar |
150 |
|
|
Maximum secondary pressure 210 bar |
210 |
|
|
05 |
Internal pilot oil supply, external leakage oil discharge |
Y |
|
06 |
With check valve |
no code |
|
Without check valve |
M |
|
|
Seal material |
||
|
07 |
NBR seals |
no code |
|
FKM seals (other seals on request) Attention! Observe compatibility of seals with the hydraulic fluid used! |
V |
|
|
08 |
Further details in the plain text |
* |
1) H-key with material no. R900008158 is included in the scope of delivery.
Preferred types and standard units are contained in the EPS (standard price list).
general
|
Size |
10 | ||
|
Installation position |
any | ||
|
Ambient temperature range |
NBR seals |
°C |
-30 … +50 |
|
FKM seals |
°C |
-20 … +50 | |
|
Weight |
kg |
3 | |
hydraulic
|
Size |
10 | ||
|
Maximum operating pressure |
Port B |
bar |
315 |
|
Maximum secondary pressure |
Port A |
bar |
25 75 150 210 |
|
Maximum counter pressure |
Port T (Y) |
bar |
160 |
|
Maximum flow |
l/min |
80 | |
|
Hydraulic fluid |
see table | ||
|
Hydraulic fluid temperature range |
NBR seals |
°C |
-30 … +80 |
|
FKM seal |
°C |
-20 … +80 | |
|
Viscosity range |
mm²/s |
10 … 800 | |
|
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. |
|
Hydraulic fluid |
Classification |
Suitable sealing materials |
Standards |
|
|
Mineral oils and related hydrocarbons |
HL, HLP, HLPD |
NBR, FKM |
DIN 51524 |
|
|
Environmentally compatible |
Insoluble in water |
HETG |
NBR, FKM |
ISO 15380 |
|
HEES |
FKM |
|||
|
Soluble in water |
HEPG |
FKM |
ISO 15380 |
|
|
Containing water |
Water-free |
HFDU, HFDR |
FKM |
ISO 12922 |
|
Containing water |
HFC (Fuchs Hydrotherm 46M, Petrofer Ultra Safe 620) |
NBR |
ISO 12922 |
|
|
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.)!Flame-resistant – containing water: Maximum operating pressure 210 bar Maximum hydraulic fluid temperature 60 °C Expected life cycle as compared to HLP hydraulic oil 30 % to 100 % |
||||
For applications outside these parameters, please consult us!
(measured with HLP46, ϑOil = 40 ±5 °C)
pA-qV characteristic curves
Δp-qV characteristic curves
Notice!
The curve development is maintained if the pressure is set lower according to the pressure rating.
The characteristic curves apply to the pressure at the valve output p = 0 bar across the entire flow range.
Version "M"
Without check valve
Version "no code"
With check valve
Dimensions in mm
|
1 |
Name plate |
|
2 |
Adjustment type "1" |
|
3 |
Adjustment type "2" |
|
4 |
Adjustment type "3" |
|
5 |
Adjustment type "7" |
|
6 |
Space required to remove the key |
|
7 |
Valve mounting bores |
|
8 |
Lock nut SW24 |
|
9 |
Hexagon SW10 |
|
10 |
Identical seal rings for ports A, B, P, T (Y) |
|
11 |
Pressure gauge connection G1/4; 12 mm deep; internal hexagon SW6 |
|
12 |
Locking pin |
|
13 |
Porting pattern according to DIN 24340 form D and ISO 5781-06-07-0-00 |
Subplates (separate order)
G 460/01 (G3/8)
G 461/01 (G1/2)
Valve mounting screws (separate order)
4 metric hexagon socket head cap screws
ISO 4762 - M10 x 60 - 10.9-flZn-240h-L
with friction coefficient μtotal = 0.09 to 0.14,
tightening torque MA = 60 Nm ± 10%,
material no. R912000116