ZDZ6DP2-4X/75YM
Manufacturer: Bosch Rexroth
Material #: R900519968
Model : ZDZ6DP2-4X/75YM
***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 ZDZ6DP2-4X/75YM (R900519968) is a direct-operated pressure sequence valve designed for sandwich plate mounting, facilitating the pressure-dependent connection of a second system. This valve is part of the ZDZ series and features a precise adjustment mechanism for setting the sequencing pressure. The model ZDZ6DP2-4X/75YM operates with a maximum pressure of 315 bar and allows for a maximum flow rate of 75 liters per minute, ensuring efficient performance in various hydraulic applications.
In its default configuration, known as Version P, the valve uses a compression spring to maintain the control spool in its initial position, effectively blocking the valve. When the pressure in channel P reaches the set value against the compression spring, the control spool shifts to allow fluid connection from P to A without inducing pressure drop in channel P. The pilot oil return from this version's spring chamber requires external routing through a designated bore to channel T.
Alternatively, Version A provides internal control signal and pilot fluid supply from channel A, with an optional check valve allowing free return flow of hydraulic fluid from A back to A.
The ZDZ6DP2-4X/75YM offers multiple adjustment types including rotary knob, threaded pin with hexagon and protective cap, lockable rotary knob with scale, and rotary knob with scale. Additionally, users can monitor sequencing pressure directly at the valve thanks to an integrated pressure gauge connection.
This model adheres to ISO porting patterns and comes with or without locating holes for installation flexibility. Its design ensures reliability and precision in controlling sequence operations within hydraulic systems. The optional check valve feature is exclusive to Version A configurations of this model.
$2,545.00 USD
More are expected on May 19, 2025
Status: This product is temporarily out of stock.
Qty: Delivered as early as May 19, 2025 when ordered in
This product is eligible for factory repair.
Valve type ZDZ is a direct operated pressure sequence valve in sandwich plate design. It is used for the pressure-dependent connection of a second system. The sequencing pressure is set via the adjustment type (4).
Version "P"
The compression spring (3) holds the control spool (2) in the initial position – the valve is blocked. The pressure in channel P➁ is applied via the control line (5) at the spool face of the control spool (2) opposite the compression spring (3).
If channel P➁ reaches the set value of the compression spring (3), the control spool (2) is moved to the left and the connection from P➁ to P➀ is opened. The system connected to channel P➀ is connected without a pressure drop in channel P➁.
The pilot oil return from the spring chamber (7) is always realized externally via the bore (6) to channel T (Y).
A pressure gauge connection (8) enables control of the sequencing pressure at the valve.
Version "A"
Here, pressure sequencing is realized in channel A. Control signal and pilot fluid are supplied internally from channel A➀.
A check valve can be optionally installed for free hydraulic fluid return flow from A➁ to A➀.
Type ZDZ 6 DP1–4X/…YM…
Type ZDZ 6 DA1–4X/…YM
|
➀ |
component side |
|
➁ |
plate side |
(measured with HLP46, ϑOil = 40 ±5 °C)
Δp-qV characteristic curves
Version "P"
Δp-qV characteristic curves
Version "A"
p-qV characteristic curves
Version "P"
p-qV characteristic curves
Version "A"
|
1 |
P➀ to P➁ |
|
2 |
A➀ to A➁ |
|
3 |
A➁ to A①; flow only via check valve |
Notes:
The characteristic curves apply to the pressure at the valve output pT = 0 bar across the entire flow range.
Version "A...Y"
Version "A...YM"
Version "P...YM"
Version "P"
Dimensions in mm
|
|
Required surface quality of the valve contact surface |
|
➀ |
component side – porting pattern according to ISO 4401-03-02-0-05 (with or without locating hole); (with locating hole Ø4 x 4 mm deep) |
|
➁ |
plate side – Porting pattern according to ISO 4401-03-02-0-05 (with or without locating hole); (with locating hole Ø3 x 5 mm deep for locking pin ISO 8752-3x8-St, material no. R900005694, separate order) |
|
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 A➁, B➁, P➁, T➁(Y) |
|
11 |
Pressure gauge connection G1/4; 12 mm deep; internal hexagon SW6 |
Valve mounting screws (separate order)
4 hexagon socket head cap screws ISO 4762 - M5 - 10.9
Notes:
Length and tightening torque of the valve mounting screws must be calculated according to the components mounted under and over the sandwich plate valve. The dimensions are nominal dimensions which are subject to tolerances.Version "A"
Dimensions in mm
|
|
|
Required surface quality of the valve contact surface |
|
➀ |
component side – porting pattern according to ISO 4401-03-02-0-05 (with or without locating hole); (with locating hole Ø4 x 4 mm deep) |
|
➁ |
plate side – Porting pattern according to ISO 4401-03-02-0-05 (with or without locating hole); (with locating hole Ø3 x 5 mm deep for locking pin ISO 8752-3x8-St, material no. R900005694, separate order) |
|
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 A➁, B➁, P➁, T➁(Y) |
|
11 |
Pressure gauge connection G1/4; 12 mm deep; internal hexagon SW6 |
Valve mounting screws (separate order)
4 hexagon socket head cap screws ISO 4762 - M5 - 10.9
Notes:
Length and tightening torque of the valve mounting screws must be calculated according to the components mounted under and over the sandwich plate valve. The dimensions are nominal dimensions which are subject to tolerances.Related Products
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