BOSCH REXROTH
R901137190
$470.63 USD
- BOSCH REXROTH
- Material:R901137190
- Model:KBPSN8BA/HCG12K40V
Quantity in stock: 0
The Bosch Rexroth KBPSN8BA/HCG12K40V (R901137190) is a high-performance screw-in cartridge valve designed for precise pressure control in hydraulic systems. This direct-operated proportional pressure relief valve features a decreasing characteristic curve and is part of the KBPS product family, which falls under the Proportional Valve product group. It is specifically crafted to limit system pressure with fine control, making it suitable for both mobile and industrial applications. The valve has an integrated coil and operates with a 24 V DC supply voltage, ensuring reliable electroproportional actuation through its Deutsch DTP electrical connector. The poppet type spool within the valve ensures normally closed operation, with the ability to open progressively in response to electrical command signals. The maximum operating pressure of the unit reaches up to 350 bar (5076 psi), while it can accommodate a maximum flow rate of 40 l/min (10.6 gpm), ensuring efficient performance even under demanding conditions. Designed with an FKM sealing material and compatible with hydraulic fluids such as HL, HLP, HEES, and HEPG, this Bosch Rexroth valve ensures durability and compatibility with a wide range of system fluids. Its size and component series A designation indicate its compactness and adaptability for various installation requirements. With its Sun TA cavity design, the KBPSN8BA/HCG12K40V valve offers straightforward installation as a screw-in cartridge unit. Moreover, users can externally fine-tune the command value-pressure characteristic curve via control electronics to meet specific system requirements accurately. In situations where power is lost, the valve automatically sets itself to maintain maximum set pressure for safety and system integrity purposes. The robust design combined with precise control capabilities makes this Bosch Rexroth valve an essential component for advanced hydraulic systems requiring reliable pressure relief functions.
Unpacked Weight: 0.4336 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 | 12 V DC |
| Coil integrated | Integrated coil |
| Spool Poppet | Poppet type |
| Weight | 0.4336 |
| 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 |
|
|
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 |