BOSCH REXROTH
R900512374
$990.97 USD
- BOSCH REXROTH
- Material:R900512374
- Model:DZ10DP2-4X/25YM
Quantity in stock: 0
The Bosch Rexroth DZ10DP2-4X/25YM (R900512374) is a direct operated pressure sequence valve designed for the precise control of hydraulic systems. This valve is engineered to facilitate the pressure-dependent connection of a second system by setting the sequencing pressure through various adjustment types. The robust construction includes a compression spring that maintains the control spool in its initial position, ensuring that the valve remains blocked until the set pressure value is attained. Once channel A's pressure reaches the pre-set level of the compression spring, the control spool shifts, establishing an open connection from A to B without causing any pressure drop in channel A. This allows for seamless integration of the system associated with channel B. The DZ10DP2-4X/25YM can receive its control signal either internally from channel A or externally via port X, offering flexibility in application. Leakage oil discharge can be managed externally through port Y or internally via B, depending on how the valve is utilized. However, it's important to note that with internal leakage oil discharge, there will be an increase in set cracking pressure due to the presence of pressure in channel B. For applications requiring free hydraulic fluid return flow from channel B to channel A, an optional check valve can be installed. Additionally, monitoring and controlling sequencing pressure is made convenient with a pressure gauge connection available at the valve. This model boasts compatibility with subplate mounting and conforms to ISO standards for porting patterns. It offers various adjustment types including rotary knobs (with or without scales), threaded pins with hexagon and protective cap, and lockable rotary knobs with scale. With its comprehensive range of features and options for customization, this valve provides reliable performance and adaptability for complex hydraulic systems.
Valve type DZ 10 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 (1).
The compression spring (2) holds the control spool (3) in initial position, the valve is blocked. The pressure in channel A is applied via the control line (4) at the spool face of the control spool (3) opposite the compression spring (2).
If the pressure in channel A reaches the set value of the compression spring (2), the control spool (3) is moved to the right and the connection from A to B is opened. The system connected to channel B is connected without a pressure drop in channel A.
The control signal is received internally via the control line (4) from channel A or externally via port X.
Depending on the use of the valve, leakage oil discharge is realized externally via port Y or internally via B.
Attention!
With internal leakage oil discharge, the set cracking pressure is increased by the pressure in channel B.
A check valve (5) can be optionally installed for free hydraulic fluid return flow from channel B to channel A.
A pressure gauge connection (6) enables control of the sequencing pressure at the valve.
Type DZ 10 DP1-4X/.XY..
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01 |
02 |
03 |
04 |
05 |
06 |
07 |
08 |
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DZ 10 DP |
– |
4X |
/ |
* |
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01 |
Pressure sequence valve, direct operated Size 10 |
DZ 10 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 |
3 1) |
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Rotary knob with scale |
7 |
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03 |
Component series 40 … 49 (40 … 49: unchanged installation and mounting dimensions) |
4X |
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Maximum sequencing pressure |
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04 |
25 bar |
25 |
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75 bar |
75 |
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150 bar |
150 |
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210 bar |
210 |
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05 |
Internal pilot oil supply, internal leakage oil discharge |
no code |
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External pilot oil supply, internal leakage oil discharge |
X |
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Internal pilot oil supply, external leakage oil discharge |
Y |
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External pilot oil supply, external leakage oil discharge |
XY |
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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 upon request) |
V |
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Observe compatibility of seals with hydraulic fluid used. |
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08 |
Further details in the plain text |
* |
| 1) H-key with material no. R900008158 is included in the scope of delivery. |
Preferred types and standard units are specified in the EPS (standard price list).
general
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Size |
10 | ||
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Weight (approx.) |
kg |
3 | |
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Installation position |
any | ||
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Ambient temperature range |
NBR seals |
°C |
-30 … +80 |
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FKM seals |
°C |
-20 … +80 | |
hydraulic
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Size |
10 | ||
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Maximum operating pressure |
Anschluss A |
bar |
210 |
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Port X |
bar |
210 | |
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Port Y |
bar |
160 | |
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Maximum sequencing pressure |
adjustable |
bar |
25 75 150 210 |
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Maximum flow |
l/min |
80 | |
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Hydraulic fluid |
see table | ||
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Hydraulic fluid temperature range |
NBR seals |
°C |
-30 … +80 |
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FKM seals |
°C |
-20 … +80 | |
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Viscosity range |
mm²/s |
10 … 800 | |
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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 |
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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 % |
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For applications outside these parameters, please consult us!
(measured with HLP46, ϑOil = 40 ±5 °C)
p-qV characteristic curves
Δp-qV characteristic curves
The characteristic curves apply to the pressure at the valve outlet p = 0 bar across the entire flow range.
Version "no code"
Version “X"
Version “Y”
Version “XY"
Dimensions in mm
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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 |
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7 |
Valve mounting bores |
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8 |
Lock nut SW24 |
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9 |
Hexagon SW10 |
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10 |
Identical seal rings for ports A and B Identical seal rings for ports X and Y |
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11 |
Pressure gauge connection G1/4; 12 mm deep; internal hexagon SW6 Tightening torque MA = 20 Nm ± 10 % |
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12 |
Locking pin |
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13 |
Porting pattern according to ISO 5781-06-07-0-00 |
Subplates (separate order)
G 460/01 (G3/8)
G 461/01 (G1/2)
Valve mounting screws (separate order)
4 hexagon socket head cap screws
ISO 4762 - M10 x 60 - 10.9-flZn-240h-L
Friction coefficient µtotal = 0.09 to 0.14,
Tightening torque MA = 60 Nm ±10 %,
material no. R913000116