BOSCH REXROTH
R900435680
$763.11 USD
- BOSCH REXROTH
- Material:R900435680
- Model:DR6DP2-5X/210YMV
Quantity in stock: 0
The Bosch Rexroth DR6DP2-5X/210YMV (R900435680) is a high-performance direct operated pressure reducing valve designed for subplate mounting, with a way version that ensures the limitation of the secondary circuit's system pressure. This valve is adept at maintaining a consistent secondary pressure which is set through an adjustment type mechanism. In its initial position, the valve allows unrestricted flow from channel P to A, while simultaneously applying pressure through the control line to balance against the compression spring. When the pressure in channel A surpasses the set value on the compression spring, the control spool shifts to maintain a steady level. Internal signaling and pilot oil are routed via this control line from channel A. An increase in channel A's pressure due to external forces causes further movement of the control spool against the spring, connecting channel A to TY and allowing excess hydraulic fluid to flow back into the tank, thus regulating pressure effectively. The design ensures leakage oil from the spring chamber is discharged externally through channel TY. An optional check valve can be integrated for free flow back from channel A to P, enhancing versatility. Monitoring and maintenance are made convenient with a pressure gauge connection for secondary pressure checks. The model conforms with DIN form A and ISO porting patterns, including an optional locating hole for precise installation. It offers various adjustment types like rotary knob, threaded pin with hexagon and protective cap, lockable rotary knob with scale, or rotary knob with scale for user-friendly operation. The unit supports different pressure ratings and includes an optional check valve for added functionality. With a maximum operating pressure of 210 bar and maximum flow rate specifications available upon order placement, this Bosch Rexroth valve meets stringent requirements for reliable hydraulic system performance across diverse applications.
The valve type DR 6 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 (4)
The valve is open in initial position. Hydraulic fluid can flow from channel P to channel A without restrictions. The pressure in channel A is simultaneously applied via the control line (6) 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 come internally via the control line (6) 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 (8) 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 (7) is always effected externally via channel T(Y).
For the free flow back from channel A to channel P, a check valve (5) can optionally be installed.
A pressure gauge connection (1) allows for the control of the secondary pressure.
Type DR 6 DP1-5X/.Y…
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01 |
02 |
03 |
04 |
05 |
06 |
07 |
08 |
09 |
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DR6DP |
– |
5X |
/ |
Y |
* |
|
01 |
Pressure reducing valve, direct operated, size 6 |
DR 6 DP |
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Adjustment type |
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02 |
Rotary knob |
1 |
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Grub screw with hexagon and protective cap |
2 |
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Lockable rotary knob with scale |
31) |
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Rotary knob with scale |
7 |
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03 |
Component series 50 … 59 (50 … 59: unchanged installation and connection dimensions) |
5X |
|
04 |
Maximum secondary pressure 25 bar |
25 |
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Maximum secondary pressure 75 bar |
75 |
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Maximum secondary pressure 150 bar |
150 |
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Maximum secondary pressure 210 bar |
210 |
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Maximum secondary pressure 315 bar |
3152) |
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05 |
Internal pilot oil supply, external leakage oil discharge |
Y |
|
06 |
With check valve |
no code |
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Without check valve |
M |
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Seal material |
||
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07 |
NBR seals |
no code |
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FKM seals (other seals on request) Attention! Observe compatibility of seals with the hydraulic fluid used! |
V |
|
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08 |
Without locating hole |
no code |
|
With locating hole |
/60 3) |
|
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With locating hole and locking pin ISO 8752-3x8-St |
/62 |
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|
09 |
Further details in the plain text |
* |
| 1) H-key with material no. R900008158 is included in the scope of delivery. | |
| 2) Only with adjustment type “2” and without check valve | |
| 3) Locking pin ISO 8752-3x8-St, material no. R900005694 (separate order) |
Preferred types and standard units are contained in the EPS (standard price list).
general
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Size |
6 | ||
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Installation position |
any | ||
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Storage temperature range |
NBR seals |
°C |
-30 ... +80 |
|
FKM seals |
°C |
-20 ... +80 | |
|
Weight |
kg |
1.2 | |
hydraulic
|
Size |
6 | ||
|
Maximum operating pressure |
Port P |
bar |
315 |
|
Maximum secondary pressure |
Anschluss A |
bar |
25 75 150 210 315 |
|
Maximum counter pressure |
Port T (Y) |
bar |
160 |
|
Maximum flow |
l/min |
60 | |
|
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. |
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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 |
|||
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Soluble in water |
HEPG |
FKM |
ISO 15380 |
|
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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 |
|
|
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
pA-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.
Δp-qV characteristic curves
Δp-qV characteristic curves
|
1 |
P to A (minimum pressure differential) |
|
2 |
A to T(Y) (minimum pressure differential) |
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3 |
Δp only via check valve |
|
4 |
Δp via check valve and fully opened control cross-section |
Version "M"
Without check valve
Version "no code"
With check valve
Dimensions in mm
Dimensions in mm
|
1 |
Name plate |
|
2 |
Adjustment type "1" |
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3 |
Adjustment type "2" |
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4 |
Adjustment type "3" |
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5 |
Adjustment type "7" |
|
6 |
Space required to remove the key |
|
7 |
Valve mounting bores |
|
8 |
Lock nut SW24 |
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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 |
Without check valve |
|
13 |
With check valve |
|
14 |
Port B without function |
|
15 |
Porting pattern according toISO 4401-03-02-0-05 (with locating hole for locking pin ISO 8752-3x8-St, material no. R900005694, separate order) |
Subplates (separate order)
(without locating hole)
G 341/01 (G1/4)
G 342/01 (G3/8)
G 502/01 (G1/2)
(with locating hole)
G 341/60 (G1/4)
G 342/60 (G3/8)
G 502/60 (G1/2)
Valve mounting screws (separate order)
4 metric hexagon socket head cap screws
ISO 4762 - M5 x 50 - 10.9-flZn-240h-L
at friction coefficient μtotal = 0.09 to 0.14,
tightening torque MA = 7 Nm] ± 10% ,
material no. R913000064
4 hexagon socket head cap screws UNC
10-24 UNC x 2” (on request)