Manufacturer: Bosch Rexroth
Material #: R978879034
Model : DR 6 DP2-5X/10YM/12 SO21 SO43A-1033
$1,750.00 USD
More are expected on January 20, 2026
Note: Sales tax, shipping, and applicable tariffs will be calculated at checkout.| Qty | Price | Savings |
|---|---|---|
| 5-24 | $1,706.25 USD | $43.75 USD |
| 25+ | $1,662.50 USD | $87.50 USD |
Status: This product is temporarily out of stock.
Qty: Delivered as early as January 20, 2026 when ordered in
This product is eligible for factory repair.
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…
(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) |
|
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" |
|
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 |
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)
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