BOSCH REXROTH
R900413204
$736.78 USD
- BOSCH REXROTH
- Material:R900413204
- Model:DR6DP1-5X/75Y
Quantity in stock: 0
The Bosch Rexroth DR6DP1-5X/75Y (R900413204) is a direct-operated pressure reducing valve designed for subplate mounting with a way version, meaning it features pressure limitation for the secondary circuit. This model is engineered to manage system pressure by setting the secondary pressure through an adjustment type. Initially open, the valve allows unrestricted flow from channel P to A, while the pressure in channel A is regulated via a control line at the piston area counteracting the compression spring. When the pressure in channel A surpasses the compression spring's set value, the control spool shifts into position to maintain a constant level of set pressure in channel A. Both signal and pilot oil are internally sourced from channel A through the control line. An increase in pressure due to external forces on the actuator causes further displacement of the control spool against the compression spring, connecting channel A to channel TY and allowing excess hydraulic fluid to drain into the tank, thus slightly increasing pressure. The valve also features an external leakage oil discharge from its spring chamber via channel TY. For reverse flow from channel A back to P, an optional check valve can be installed. Monitoring of secondary pressure is facilitated by a pressure gauge connection. The DR6DP1-5X/75Y adheres to porting patterns according to DIN form A and ISO standards with an optional locating hole. It offers various adjustment types including rotary knob, threaded pin with hexagon and protective cap, lockable rotary knob with scale, and rotary knob with scale. The maximum operating pressure capability stands at bar units while it supports a maximum flow rate measured in liters per minute (l/min). This model's size and component series X are tailored for specific requirements within hydraulic systems where precise control of secondary circuit pressures is essential.
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 |
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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
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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 |
|
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Mineral oils and related hydrocarbons |
HL, HLP, HLPD |
NBR, FKM |
DIN 51524 |
|
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Environmentally compatible |
Insoluble in water |
HETG |
NBR, FKM |
ISO 15380 |
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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) |
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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 |
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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" |
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6 |
Space required to remove the key |
|
7 |
Valve mounting bores |
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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 |
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13 |
With check valve |
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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)