Артикул: RX7708
Proportional pressure relief valve, pilot-operated, decreasing characteristic curve KBVS.3B
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Description
- Size 3
- Component series A
- Max. operating pressure 350 bar
- Flow, max. 200 l/min
Features
- Cartridge valve
- Mounting cavity R/ISO 7789-33-01-0-98
- Pilot-operated proportional valve for system pressure limitation
- Suitable for mobile and industrial applications
- Actuation by proportional solenoid with central thread and detachable coil
- Fine adjustment of the command value pressure characteristic curve possible from the outside at the control electronics
- Via an adjustment screw, the valve is set to maximum pressure
- In the event of a power failure, maximum set pressure becomes effective
Product description
Type KBVS valves are pilot-operated proportional pressure relief valves in seat design and are used for limiting the pressure in hydraulic systems. They mainly consist of the screwed in proportional pilot control valve and the main valve. Dependent on the electric command value, these valves can be used to steplessly set the system pressure to be limited. At command value 0 or in the event of a power failure, the maximum pressure is set (fail-safe behavior).
Type code
| 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | |
| KBVS | 3 | B | A | / | L | C | V | * |
| 01 | Proportional pressure relief valve, pilot-operated | KBVS |
| Pressure rating | ||
| 02 | 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 | |
| 03 | Component size | 3 |
| 04 | Maximum pressure at command value = 0 | B |
| 05 | Component series | A |
| 06 | High Performance and mounting cavity R/ISO 7789 (see Mounting cavity) | L |
| 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 | KBVS.3BA | |
| Size | 3 | |
| Component series | A | |
| Installation position | any - if it is ensured that no air can collect upstream of the valve. Otherwise, we recommend suspended installation of the valve. | |
| Earth | kg | 0.7 |
| Storage temperature range | °C | -20 … +80 |
| Ambient temperature range | °C | -20 … +120 |
hydraulic
| Size | 3 | ||
| Maximum operating pressure | bar | 350 | |
| Port P 1) | bar | 350 | |
| Port T | bar | 210 | |
| Maximum flow | l/min | 200 | |
| Hydraulic fluid temperature range | °C | -20 … +80 | |
| Viscosity range | mm²/s | 12 … 800 | |
| Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 2) | Class 20/18/15 according to ISO 4406 (c) | ||
| Hysteresis 3) | % | < 4 | |
| Manufacturing tolerance of the command value pressure characteristic curve, related to the hysteresis characteristic curve, pressure increasing 3) | % | < 5 | |
| 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. |
| 3) | Of the maximum set pressure |
electrical
| Type | KBVS.3BA | |
| Duty cycle | % | 100 |
Downloads
 | Proportional pressure relief valve, pilot-operated, falling characteristic curve (High-Performance) Data Sheet | RE18139-07 | 2012-07-01 | English | PDF | 509k Product Groups: Pilot operated, Direct acting relief Type KBVS.3B |
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