DZ 6 DP2-5X/25/12
Manufacturer: Bosch Rexroth
Material #: R978895211
Model : DZ 6 DP2-5X/25/12
***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth DZ 6 DP2-5X/25/12 (R978895211) is a high-performance, direct operated pressure sequence valve designed for controlling the sequential operation of hydraulic systems. The valve ensures a pressure-dependent connection of secondary systems by setting the sequencing pressure through various adjustment types. It incorporates a robust compression spring that maintains the control spool in its initial position, effectively blocking flow until the set pressure threshold is met.
Upon reaching the set value determined by the compression spring, the control spool shifts to allow fluid communication from P to A, enabling the connected system to operate without encountering a pressure drop in channel P. The DZ 6 DP2-5X/25/12 valve offers flexibility in receiving control signals either internally from channel P or externally via port BX. Additionally, it provides options for handling leakage oil discharge: externally through port TY or internally through A, with an important note that internal discharge will increase the cracking pressure due to channel A's influence.
For those requiring free hydraulic fluid return flow from channel A back to P, an optional check valve can be installed. Monitoring and control are facilitated by a pressure gauge connection for checking sequencing pressure directly at the valve.
This model adheres to standard mounting patterns such as DIN form A (without locating hole) and ISO with locating hole for subplate mounting—though subplates are ordered separately. It comes with various optional features like different adjustment types including rotary knobs (with or without scale), threaded pins with hexagon and protective cap, or lockable rotary knobs with scale.
The Bosch Rexroth DZ 6 DP2-5X/25/12 is designed for durability and consistent performance, supporting maximum operating pressures up to bar and maximum flow rates measured in l/min. With its precise construction and customizable options, this valve stands as an essential component for advanced hydraulic sequencing applications.
$860.00 USD
More are expected on May 23, 2025
Status: This product is temporarily out of stock.
Qty: Delivered as early as May 23, 2025 when ordered in
This product is eligible for factory repair.
Valve type DZ 6 DP is a direct operated pressure sequence valve. It is applied for pressure-dependent connection of a second system. The sequencing pressure is set via the adjustment type (4).
The compression spring (3) holds the control spool (2) in initial position, the valve is blocked. The pressure in channel P is applied via the control line (6) at the spool face of the control spool (2) opposite the compression spring (3).
If the pressure in channel P reaches the set value of the compression spring (3), the control spool (2) is moved to the left and the connection from P to A is opened. The system connected to channel A is connected without a pressure drop in channel P.
The control signal is received internally via the control line (6) from channel P or externally via port B (X).
Depending on the use of the valve, leakage oil discharge is realized externally via port T (Y) or internally via A.
Attention!
With internal leakage oil discharge, the set cracking pressure is increased by the pressure in channel A.
A check valve (5) can be optionally installed for free hydraulic fluid return flow back from channel A to channel P.
A pressure gauge connection (1) enables control of the sequencing pressure at the valve.
Type DZ 6 DP1–5X/…
Type DZ 6 DP1–5X/.XYM…
(measured with HLP46, ϑOil = 40 ±5 °C)
Δp-qV characteristic curves
Δp-qV characteristic curves
The characteristic curves apply for outlet pressure = zero in the entire flow range!
Version "no code"
Version “X"
Version “Y”
Version “XY"
Dimensions in mm
|
1 |
Name plate |
|
2 |
Adjustment type "1" |
|
3 |
Adjustment type "2" |
|
4 |
Adjustment type "3" |
|
5 |
Adjustment type "7" |
|
6 |
Dimensions required to remove the key |
|
7 |
Valve mounting bores |
|
8 |
Lock nut SW24 |
|
9 |
Hexagon SW10 |
|
10 |
Identical seal rings for ports A, B(X), P, T(Y) |
|
11 |
Pressure gauge connection G1/4; 12 mm deep; internal hexagon SW6 |
|
12 |
Without check valve |
|
13 |
With check valve |
|
14 |
Porting pattern according to DIN 24340 form A (without locating hole), or ISO 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 hexagon socket head cap screws
ISO 4762 - M5 x 50 - 10.9-flZn-240h-L
Friction coefficient µtotal = 0.09 to 0.14,
Tightening torque MA = 7 Nm ± 10 %,
material no. R913000064
Pipe thread (G..) according to ISO 228/1
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