Артикул: RX7695
Proportional pressure relief valve, direct operated, decreasing characteristic curve KBPS.8B
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Description
- Size 8
- Component series A
- Maximum operating pressure 420 bar
- Maximum flow 2 l/min
Features
- Cartridge valve
- Mounting cavity R/T-8A
- Direct operated proportional valve for system pressure limitation
- Suitable for mobile and industrial applications
- Actuation by proportional solenoid with central thread and detachable coil
- Fine-balancing of the command value/pressure characteristic curve externally on the control electronics
- Set to the maximum pressure via the adjustment screw
- In the event of a power failure, maximum set pressure becomes effective
Product description
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.
Type code
| 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 | * |
Technical data
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 |
Downloads
 | Proportional pressure relief valve, direct operated, decreasing characteristic curve Data Sheet | RE18139-05 | 2012-07-01 | English | PDF | 421k Product Groups: Direct operated, Direct acting relief Type KBPS.8B (High Performance) |
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