BOSCH REXROTH
R901188705
$436.44 USD
- BOSCH REXROTH
- Material:R901188705
Quantity in stock: 0
The Bosch Rexroth KBPSR8BA/HCG24K40V (R901188705) is a state-of-the-art proportional pressure relief valve that operates on a direct-acting basis with a decreasing characteristic curve. This screw-in cartridge valve is designed to limit system pressure efficiently and reliably. With a maximum operating pressure of 350 bar (5075 psi) and a maximum flow rate of 100 l/min (26.4 gpm), it fits perfectly within the SUN TA cavity, ensuring compatibility with standard cavities. The valve features electroproportional actuation through an integrated coil and Deutsch DTP electrical connector, providing precise control over hydraulic systems. The poppet-type spool within the valve ensures normally closed operation, which can be transitioned to variable states based on the electrical command value received by the proportional solenoid with central thread and detachable coil. Constructed with FKM sealing material, the KBPSR8BA/HCG24K40V is compatible with hydraulic fluids such as HL, HLP, HEES, and HEPG, making it suitable for a wide range of mobile and industrial applications. Furthermore, its design allows for fine balancing of command value-to-pressure characteristic curves externally via control electronics. Users can manually set the maximum pressure using an adjustment screw; in case of power failure, the valve defaults to this preset maximum pressure. This product belongs to component series A and is characterized by its robustness and reliability in maintaining or limiting system pressures as required by various hydraulic applications. Its weight of 0.6 kg indicates a solid yet manageable component for system integration. The supply voltage requirement for this valve is 24 V DC. In summary, the Bosch Rexroth KBPSR8BA/HCG24K40V (R901188705) offers precision control in hydraulic pressure relief applications, combining durability with advanced technology for optimal performance in limiting system pressures across diverse operational environments.
Proportional pressure relief valve, direct operated, decreasing characteristic curve
Unpacked Weight: 0.442 kg
Valves of type KBPS.8B are direct operated proportional pressure relief valves (pilot control valves) in seat design and are used to limit a system pressure. At command value 0 or in the event of a power failure, the maximum pressure is set. Operation by means of a proportional solenoid with central thread and detachable coil. The solenoid's interior is connected to the main port and filled with hydraulic fluid. Dependent on the electric command value, these valves can be used to steplessly set the system pressure to be limited.
| Screw-in cartridge valve |
| Maximum operating pressure 420 bar (6000 psi) |
| Maximum flow 2 l/min (0,5 gpm) |
| Cavity SUN T-8A |
| Max. pressure | 420 |
| Coil | GP37 |
| Product family classification | Proportional pressure relief valve, direct operated, decreasing characteristic curve |
| Productgroup ID | 9,10,11,12,13,14 |
| Product family type | KBPS |
| Ports number | 2 |
| Type of actuation | Electro-proportional |
| Sealing material | FKM |
| Cavity | Sun T-8A |
| Product type | KBPS |
| Electrical connector | Deutsch DT04-2P |
| Max. flow | 2 |
| Type of connection | Screw-in cartridge valve |
| Normal position | Normally closed |
| Nominal flow | 2 |
| Direct - Pilot | Direct acting |
| Product family | Relief |
| Supply voltage | 24 V DC |
| Coil integrated | Integrated coil |
| Spool Poppet | Poppet type |
| Weight | 0.442 |
| Hydraulic fluid | HL,HLP,HEES,HEPG |
|
01 |
02 |
03 |
04 |
05 |
06 |
07 |
08 |
09 |
10 |
11 |
12 |
|
|
KBPS |
8 |
B |
A |
/ |
H |
C |
V |
* |
|
01 |
Proportional pressure relief valve, direct operated (pilot control valve) |
KBPS |
|
Pressure rating |
||
|
02 |
Up to 30 bar |
B |
|
Up to 50 bar |
C |
|
|
Up to 100 bar |
F |
|
|
Up to 150 bar |
H |
|
|
Up to 210 bar |
L |
|
|
Up to 250 bar |
N |
|
|
Up to 315 bar |
P |
|
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Up to 350 bar |
R |
|
|
Up to 420 bar |
T |
|
|
03 |
Component size |
8 |
|
04 |
Maximum pressure at command value = 0 |
B |
|
05 |
Component series |
A |
|
06 |
High Performance and mounting cavity R/T-8A (see mounting cavity) |
H |
|
07 |
Proportional solenoid, wet-pin |
C |
|
Power supply |
||
|
08 |
Control electronics 12 V DC |
G12 |
|
Control electronics 24 V DC |
G24 |
|
|
Electrical connection |
||
|
09 |
Without mating connector, with connector according to DIN EN 175301-803, separate order |
K4 |
|
Without mating connector, with connector DT 04 - 2PA (Deutsch plug) |
K40 |
|
|
Without mating connector, with connector AMP Junior-Timer |
C4 |
|
|
Seal material |
||
|
10 |
FKM seals |
V |
|
11 |
Standard version |
no code |
|
800 mA coil |
-8 |
|
|
12 |
Further details in the plain text |
* |
For applications outside these parameters, please consult us!
general
|
Type |
KBPS.8B | |
|
Size |
8 | |
|
Component series |
A | |
|
Weight |
kg |
0.45 |
|
Installation position |
any - if it is ensured that no air can collect upstream of the valve. Otherwise, we recommend suspended installation of the valve. | |
|
Ambient temperature range |
°C |
-20 … +120 |
electrical
|
Type |
KBPS.8B | |
|
Duty cycle |
% |
100 |
hydraulic
|
Type |
KBPS.8B | ||
|
Maximum flow |
l/min |
2 | |
|
Hydraulic fluid temperature range |
°C |
-20 … +80 | |
|
Viscosity range |
mm²/s |
15 … 380 | |
|
Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 1) |
Class 20/18/15 according to ISO 4406 (c) | ||
|
Hysteresis 2) |
% |
< 4 | |
|
Range of inversion 2) |
% |
< 0.5 | |
|
Response sensitivity 2) |
% |
< 0.5 | |
|
Manufacturing tolerance of the command value pressure characteristic curve, related to 0.8 l/min; pressure increasing |
at command value 100 % 2) |
% |
< 2 |
|
Step response |
0% → 100% 3) |
ms |
70 |
|
100% → 0% 3) |
ms |
70 | |
| 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. |
| 2) | Of the maximum set pressure |
| 3) | depending on the system |