Артикул: RX7598
High-response directional valves, pilot operated, with electrical position feedback and integrated electronics (OBE) 4WRVE
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Description
- Size 10 … 27
- Component series 2X
- Maximum operating pressure 350 bar
- Maximum flow 1000 l/min
- Nominal flow 40 … 430 l/min
Features
- Pilot-operated 4/3 high-response directional valves with control spool and sleeve in servo quality
- Integrated electronics (OBE) with position controller for pilot and main stage, calibrated in the plant
- Main stage in servo quality with position feedback
- Flow characteristics
M = Progressive and fine control edge
P = Inflected characteristic curve
L = Linear
Product description
Valves of type 4WRVE are pilot-operated high-response valves in servo quality.
Type code
| 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | |||
| 4 | WRV | E | ‒ | 2X | / | G24 | K0 | / | B5 | M | * |
| 01 | 4 main ports | 4 |
| 02 | High-response directional valve, pilot operated | WRV |
| 03 | With integrated electronics (OBE) | E |
| 04 | Size 10 | 10 |
| Size 16 | 16 | |
| Size 25 | 25 | |
| Size 27 | 27 1) | |
| 05 | Symbols; for the possible version, see "Symbols/Circuit diagrams" | V, V1 |
| Rated flow (Δp = 5 bar) | ||
| 06 | Size 10 | |
| 40 l/min | 40 2) | |
| 55 l/min | 55 3) | |
| 70 l/min | 70 2) | |
| 85 l/min | 85 3) | |
| Size 16 | ||
| 90 l/min | 90 2) | |
| 120 l/min | 120 3) | |
| 150 l/min | 150 2) | |
| 200 l/min | 200 3) | |
| Size 25 | ||
| 300 l/min | 300 2) | |
| 370 l/min | 370 3) | |
| Size 27 | ||
| 430 l/min | 430 1) 3) | |
| Flow characteristic | ||
| 07 | Progressive with linear fine control range | M |
| Inflected characteristic curve, linear (inflection at 40 %) | P | |
| Linear | L | |
| 08 | Component series 20 ... 29 (20 ... 29: unchanged installation and connection dimensions) - Size 6 | 2X |
| Supply voltage of the control electronics | ||
| 09 | Direct voltage 24 V | G24 |
| Pilot oil supply and return | ||
| 10 | External pilot oil supply, external pilot oil return | no code |
| Internal pilot oil supply, external pilot oil return | E | |
| Pilot oil supply internal, pilot oil return internal | ET | |
| External pilot oil supply, internal pilot oil return | T | |
| Electrical connection | ||
| 11 | Without mating connector; connector DIN 43563-AM6 | K0 |
| Electrical interface | ||
| 12 | Command value ±10 V | B5 |
| Seal material | ||
| 13 | NBR seals | M |
| 14 | Further details in the plain text | * |
| 1) | NG27 is a high-flow version of NG25, the connection bores P, A, B, T in the main stage are designed with Ø32 mm. Deviating from the standard ISO 4401-08-08-0-05, ports P, A, B, T can be bored in the manifold with a maximum of Ø30 mm. So these valves offer higher flow values QA : QB | |
| 2) | QN: flow characteristic P | |
| 3) | QN: flow characteristic M or L | |
Technical data
general
| Type | 4WRVE | ||||
| Size | 10 | 16 | 25 | 27 | |
| Component series | 2X | ||||
| Design | Directional spool valve, pilot-operated | ||||
| Type of actuation | High-response directional valve NG6 with position control for pilot control and main valve | ||||
| Anschlussart | For subplate mounting: Porting pattern according to ISO 4401 | ||||
| Installation position | Any | ||||
| Earth | kg | 8 | 10.4 | 18.2 | |
| Ambient temperature range | °C | -20 … +50 | |||
hydraulic
| Type | 4WRVE | ||||||
| Size | 10 | 16 | 25 | 27 | |||
| Maximum operating pressure | bar | 350 | |||||
| Maximum operating pressure | Port T | bar | 250 | ||||
| Port Y | bar | 250 | |||||
| Port X | bar | 250 | |||||
| Maximum operating pressure | Port P | External pilot oil supply | bar | 350 | |||
| Anschluss A | bar | 350 | |||||
| Port B | bar | 350 | |||||
| Maximum operating pressure | Port P | Internal pilot oil supply | bar | 250 | |||
| Anschluss A | bar | 250 | |||||
| Port B | bar | 250 | |||||
| Nominal flow 1) | l/min | 40 55 70 85 | 90 120 150 200 | 300 370 | 430 | ||
| Nominal flow | Pilot control valve | l/min | 8 | 24 | 40 | ||
| Maximum flow | l/min | 170 | 450 | 900 | 1000 | ||
| Hydraulic fluid temperature range | °C | -20 … +65 | |||||
| Viscosity range | mm²/s | 10 … 800 | |||||
| preferably | mm²/s | 20 … 100 | |||||
| Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 2) | Class 18/16/13 according to ISO 4406 (c) | ||||||
| Hysteresis | % | < 0.1 | |||||
| Manufacturing tolerance | % | ≤ 10 | |||||
| Temperature drift | % | < 1 | |||||
| Actuating time | 0 ... 100 % | ms | 12 | 15 | 23 | ||
| 0 ... 10 % | ms | 6 | 7 | 10 | |||
| Actuating time | 0 ... 100 % | Symbol E, E1-, W6-, W8- | ms | 40 | 50 | 90 | |
| 1) | Δp = 5 bar per edge |
| 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. |
electrical
| Type | 4WRVE | ||
| Power supply | Nominal voltage | V | 24 |
| Lower limit value | V | 21 | |
| Upper limit value | V | 40 | |
| Duty cycle | % | 100 | |
| Maximum power consumption | VA | 30 | |
| Required fuse protection | AT | 2.5 AF | |
| Protection class according to DIN EN 60529 | IP65 (If a suitable and a correctly mounted mating connector are used.) | ||
| EMC (electro-magnetic compatibility) | CE conformity according to EMC directive 2004/108/EC tested according to EN 61000-6-2 and EN 61000-6-3 | ||
| Zero point calibration 1) | % | ± 1 | |
| 1) | ex works |
Diagrams/characteristic curves
(measured with HLP46, ϑOil = 40 ±5 °C)
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