BOSCH REXROTH
R900434785
$422.42 USD
- BOSCH REXROTH
- Material:R900434785
- Model:DR 10 K4-3X/100YMV
Quantity in stock: 0
The Bosch Rexroth DR 10 K4-3X/100YMV (R900434785) is a high-performance screw-in cartridge valve designed for efficient pressure reduction in hydraulic systems. This pilot-operated pressure reducing valve is part of the DR.K product family, renowned for its reliability in controlling system pressure. The valve operates with a maximum flow of up to l/min (gpm) and can withstand maximum operating pressures of bar (psi), ensuring robust performance in demanding applications. The DR 10 K4-3X/100YMV features an Mx cavity and utilizes FKM sealing material, ensuring compatibility with various hydraulic fluids such as HL, HLP, HEES, and HEPG. It is designed to maintain a consistent secondary pressure set via a rotary knob adjustment option. The valve's normal position is normally open, allowing unrestricted flow from port 1 to port 2. With its direct pilot operation, the valve ensures precise control over the system pressure. The pilot oil supply is internal while the return is external, contributing to the valve's efficient operation. The poppet type spool within this unit ensures smooth and stable regulation of fluid flow. This model comes equipped with several adjustment options for user convenience, including a rotary knob, sleeve with hexagon and protective cap, lockable rotary knob with scale, or a rotary knob with scale. These features allow for easy adjustment and monitoring of the set pressure according to specific application requirements. The Bosch Rexroth DR 10 K4-3X/100YMV valve's compact design makes it suitable for block installation within various hydraulic circuits where space efficiency and precise pressure control are crucial. Its robust construction ensures long-term reliability and performance consistency in industrial settings where maintaining optimal hydraulic conditions is essential for operational success.
Unpacked Weight: 0.37831 kg
Pressure valves type DR 10 K.. are pilot-operated pressure reducing valves for block design installation. They are used for reducing a system pressure. The secondary pressure is set via the adjustment type (4).
In initial position, the valves are open. Hydraulic fluid can flow from main port 2 to 1 without restrictions. The pressure in main port 1 acts simultaneously at main spool (1) and via the nozzle (2) at the spring-loaded inside of the main spool (1). Similarly, it acts via nozzle (7) on the pilot poppet (8). If the pressure in main port 1 exceeds the value set at spring (5), the pilot poppet (8) opens. Hydraulic fluid flows from the chamber of spring (3) via the nozzle (7), the pilot poppet (8) and the spring chamber (6) into main port 3. The main spool (1) assumes its control position and keeps the value in main port 1 set at the spring (5) constant.
The pilot oil return from the spring chamber (6) is always realized externally via main port (3).
Notice!
Counter pressures (main port 3) add up to the set pressure.
Type DR 10 K5-3X/.YM
| Screw-in cartridge valve |
| Maximum operating pressure 350 bar (5000 psi) |
| Maximum flow 100 l/min (26 gpm) |
| Cavity M24x1 |
| Max. pressure | 350 |
| Adjustment options | Rotary knob |
| Product family classification | Pressure reducing valve, pilot operated |
| Productgroup ID | 9,10,11,12,13,14 |
| Product family type | DR.K |
| Ports number | 3 |
| Sealing material | FKM |
| Cavity | M24x1 |
| Product type | DR.K |
| Max. flow | 100 |
| Type of connection | Screw-in cartridge valve |
| Normal position | Normally open |
| Nominal flow | 100 |
| Direct - Pilot | Pilot operated |
| Product family | Reducing |
| Pilot oil supply and return | Internal pilot oil supply, external pilot oil return |
| Spool Poppet | Poppet type |
| Weight | 0.37831 |
| Hydraulic fluid | HL,HLP,HEES,HEPG |
|
01 |
02 |
03 |
04 |
05 |
06 |
07 |
08 |
09 |
10 |
||
|
DR |
10 |
K |
– |
3X |
/ |
Y |
M |
* |
|
01 |
Pressure reducing valve, pilot-operated |
DR |
|
02 |
Size 10 |
10 |
|
03 |
Cartridge valve |
K |
|
Adjustment type |
||
|
04 |
Rotary knob |
4 |
|
Sleeve with hexagon and protective cap |
5 |
|
|
Lockable rotary knob with scale |
6 1) |
|
|
Rotary knob with scale |
7 |
|
|
05 |
Component series 30 ... 39 (30 ... 39: unchanged installation and connection dimensions) |
3X |
|
Pressure rating |
||
|
06 |
Secondary pressure up to 50 bar |
50 |
|
Secondary pressure up to 100 bar |
100 |
|
|
Secondary pressure up to 200 bar |
200 |
|
|
Secondary pressure up to 315 bar |
315 |
|
|
07 |
Internal pilot oil supply, external pilot oil return |
Y |
|
08 |
Without check valve |
M |
|
Seal material |
||
|
09 |
NBR seals |
no code |
|
FKM seals (other seals upon request) |
V |
|
|
Observe compatibility of seals with hydraulic fluid used. |
||
|
10 |
Further details in the plain text |
* |
| 1) H-key with material no. R900008158 is included in the scope of delivery. |
general
|
Size |
10 | ||
|
Weight |
kg |
0.2 | |
|
Installation position |
any | ||
|
Ambient temperature range |
NBR seals |
°C |
-30 … +80 |
|
FKM seals |
°C |
-20 … +80 | |
hydraulic
|
Size |
10 | ||
|
Maximum operating pressure 1) |
Main port 2 (P) |
bar |
315 |
|
Secondary pressure |
Main port 1 (A) |
bar |
50 100 200 315 |
|
Maximum adm. counter pressure 1) |
Main port 3 (T) |
bar |
315 |
|
Maximum flow |
l/min |
100 | |
|
Hydraulic fluid |
see table | ||
|
Hydraulic fluid temperature range |
NBR seals |
°C |
-30 … +80 |
|
FKM seals |
°C |
-20 … +80 | |
|
Viscosity range |
mm²/s |
10 … 800 | |
|
Maximum admissible degree of contamination of the hydraulic fluid 2) |
Class 20/18/15 according to ISO 4406 (c) | ||
| 1) | Attention! The maximum operating pressure is added up from the set pressure and the return flow pressure. |
| 2) | 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. |
|
Hydraulic fluid |
Classification |
Suitable sealing materials |
Standards |
|
|
Mineral oil |
HL, HLP |
FKM, NBR |
DIN 51524 2) |
|
|
Bio-degradable |
Insoluble in water |
HEES (synthetic esters) 3) |
FKM |
VDMA 24568 |
|
HETG (rape seed oil) 2) |
FKM, NBR |
|||
|
Soluble in water |
HEPG (polyglycols) 3) |
FKM |
VDMA 24568 |
|
|
Other hydraulic fluids on request |
||||
| 2) Suitable for NBR and FKM seals | |
| 3) Suitable for FKM seals only |
For applications outside these parameters, please consult us!
(measured with HLP46, ϑOil = 40 ±5 °C)
pA-qV characteristic curves
pA-qV characteristic curves (in the range of 50 bar)
qV St-qV characteristic curves at Δp (pE – pA)
Δpmin-qV characteristic curves
|
➀ |
Main port 1 (A) |
|
➁ |
Main port 2 (B) |
|
➂ |
Main port 3 (Y) |
|
➀ |
Main port 1 (A) |
|
➁ |
Main port 2 (B) |
|
➂ |
Main port 3 (Y) |
Dimensions in mm
Mounting cavity, 3 main ports; M24 x 1 thread
Dimensions in mm
| 1) Depth of fit |
|
➀ |
Main port 1 (A) |
|
➁ |
Main port 2 (P), can optionally be arranged at the circumference |
|
➂ |
Main port 3 (Y), can optionally be arranged at the circumference |
|
LS |
Location shoulder |
|
1 |
Adjustment type "4" |
|
2 |
Adjustment type "5" |
|
3 |
Adjustment type "6" |
|
4 |
Adjustment type "7" |
|
5 |
Space required to remove the key |
|
6 |
Lock nut SW24 |
|
7 |
Hexagon SW10 |
|
8 |
Hexagon SW30, tightening torque for screw-in MA = 50 Nm |
|
➀ |
Main port 1 (A) |
|
➁ |
Main port 2 (P) |
|
➂ |
Main port 3 (Y) |
|
LS |
Location shoulder |