Артикул: RX7403
Directional spool valves, direct operated, with fluidic actuation WP 6...XC
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Description
- Size 6
- Component series 6X
- Maximum operating pressure 315 bar
- Maximum flow 60 l/min
- Area of application in accordance with the Explosion Protection Directive 2014/34/EU: I M2, II 2G, II 2D, II 3G, II 3D
- Type of protection of the valve solenoids: c (EN 13463-5)
Features
- 4/3-, 4/2- or 3/2-way version
- Porting pattern according to ISO 4401-03-02-0-05 (with or without locating hole)
- Operating methods: pneumatic
Product description
Valves of type WP 6...XC are fluidically operated directional spool valves. They control start, stop and direction of flow.
The directional valves basically consist of housing (1), an actuation element (2) (pneumatic actuation cylinder), the control spool (3) and one or two return springs (4). The connections for the control are arranged radially (5). The bleeding ports (6) must be connected and led to a place outside the potentially explosive area.
In the de-energized condition, the control spool (3) is held in the central or initial position by the return springs (4) (except for impulse spools).
The control spool (3) is moved to the desired spool position by means of the operating methods.
Type 4WP 6 E6X/...XC/...
Without spring return, with detent, version ..OF/..
Directional valves with pneumatic operation are also available as 2-spool position valve with detent (7). If actuation elements with detent are used, each spool position can be fixed.
Without spring return, version ..O/..
If actuation elements without return springs and without detent are used, there is no defined spool position in the non-operated condition.
Type 4WP 6 C6X/OF/N...XC/...
Throttle insert (version "B..")
The use of a throttle insert is required when due to prevailing operating conditions, flows can occur during the switching processes, which exceed the performance limit of the valve.
Type code
| 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | ||
| W | P | no code | 6 | 6X | / | XC | / |
| 01 | 3 main ports | 3 |
| 4 main ports | 4 | |
| 02 | Directional valve | W |
| Type of actuation | ||
| 03 | pneumatic | P |
| 04 | Ports radial | no code |
| 05 | Size 6 | 6 |
| 06 | Symbols e.g. C, E, EA, EB, etc; possible version, see chapter "Symbols/Circuit diagrams" | |
| 07 | Component series 60 … 69 (60 … 69: unchanged installation and connection dimensions) | 6X |
| Control spool return | ||
| 08 | With spring return | no code |
| Without spring return | O | |
| Without spring return with detent | OF | |
| 09 | Without manual override | no code |
| With manual override | N | |
| Explosion protection | ||
| 10 | Valves in explosion-protected design; for details, see "Information on explosion protection", in chapter "Technical data" | XC |
| 11 | Without throttle insert | no code |
| Throttle Ø 0.8 mm | B081) | |
| Throttle Ø 1.0 mm | B101) | |
| Throttle Ø 1.2 mm | B121) | |
| Seal material | ||
| 12 | NBR seals | no code |
| FKM seals | V | |
| Observe compatibility of seals with hydraulic fluid used. | ||
| 13 | Without locating hole | no code |
| With locating hole | /602) | |
| With locating hole and locking pin ISO 8752-3x8-St | /62 | |
| 1) | Use if volume flow > performance limit of the valve, effective in channel P. |
| 2) | Locking pin ISO 8752-3x8-St, material no. R900005694 (separate order) |
| Version | Switching positions | |
| 2 | 3 | |
| no code | ✔ | ✔ |
| O | ✔ | ‒ |
| OF | ✔ | ‒ |
| ✔ = available |
Technical data
(For applications outside these values, please consult us!)
general
| Size | 6 | ||
| Weight (approx.) | Valve with one actuation cylinder | kg | 1.8 |
| Valve with two actuation cylinders | kg | 2 | |
| Installation position 1) | any | ||
| Ambient temperature range | NBR seals | °C | -30 … +80 |
| FKM seals | °C | -20 … +80 | |
| Storage temperature range | °C | +5 … +40 | |
| Maximum storage time | yrs | 1 | |
| Surface protection | Galvanized | ||
| 1) | With version ../O.. (A, C and D) : horizontal |
hydraulic
| Size | 6 | ||
| Maximum operating pressure | Port P | bar | 315 |
| Port A | bar | 315 | |
| Port B | bar | 315 | |
| Port T 1) | bar | 160 | |
| Maximum flow | l/min | 60 | |
| Flow cross-section (spool position 0) | Symbol Q | mm2 | approx. 6 % of nominal cross-section |
| Symbol W | mm2 | approx. 3 % of nominal cross-section | |
| Minimum pilot pressure 2) 3) | bar | 4 | |
| Maximum pilot pressure 3) | bar | 10 | |
| Pilot volume | cm³ | 4.24 | |
| Hydraulic fluid | see table "Hydraulic fluid" | ||
| Hydraulic fluid temperature range | NBR seals | °C | -30 … +80 |
| FKM seals | °C | -20 … +80 | |
| Viscosity range | mm²/s | 2.8 … 500 | |
| Maximum admissible degree of contamination of the hydraulic fluid 4) | Class 20/18/15 according to ISO 4406 (c) | ||
| Maximum switching frequency | Hz | 2 | |
| 1) | With symbols A or B, port T must be used as leakage oil connection if the operating pressure exceeds the admissible tank pressure. 2 bar minimum preload pressure required. |
| 2) | See characteristic curves |
| 3) | If possible, the control air must be free from oil and/or the oil share in the control air must be clearly below the explosion limit. |
| 4) | 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. |
| Hydraulic fluid | Classification | Suitable sealing materials | Standards | Data sheet | |
| Mineral oils | HL, HLP, HLPD, HVLP, HVLPD | NBR, FKM | DIN 51524 | 90220 | |
| Bio-degradable | Insoluble in water | HETG | NBR, FKM | ISO 15380 | 90221 |
| HEES | FKM | ||||
| Soluble in water | HEPG | FKM | ISO 15380 | ||
| Flame-resistant | Water-free | HFDU, HFDR | FKM | ISO 12922 | 90222 |
| Containing water | HFC (Fuchs Hydrotherm 46M, Petrofer Ultra Safe 620) | NBR | ISO 12922 | 90223 | |
| Important information on hydraulic fluids:
| |||||
Information on explosion protection
| Area of application according to directive 2014/34/EU | IM2; II2G; II2D; II3G; II3D | |
| Type of protection valve | c (EN 13463-5) | |
| Maximum surface temperature 1) 2) | °C | 100 |
| Temperature class 1) | T4 | |
| 1) | The specified values refer to the maximum hydraulic fluid and ambient temperature. Due to a maximum pressure drop across the valve, the surface temperature exceeds the hydraulic fluid temperature by 20 K, i. e. using the valve in T6 is possible if the hydraulic fluid temperature and the ambient temperature do not exceed 60 °C. |
| 2) | Surface temperature > 50 °C, provide contact protection. |
Diagrams/characteristic curves
(measured with HLP46, ϑOil = 40 °C ± 5 °C)
Δp-qV characteristic curves
| Further characteristic curves: | |
| 7 | Symbol “R” in switching position “b” (B → A) |
| 8 | Symbol “G” and “T” in central position (P → T) |
| 9 | Symbol “H” in central position (P → T) |
| Symbols | Direction of flow | |||
| P–A | P–B | A–T | B–T | |
| A | 3 | 3 | – | – |
| B | 3 | 3 | – | – |
| C | 1 | 1 | 3 | 1 |
| D | 5 | 5 | 3 | 3 |
| E | 3 | 3 | 1 | 1 |
| F | 1 | 3 | 1 | 1 |
| G | 6 | 6 | 9 | 9 |
| H | 2 | 4 | 2 | 2 |
| J | 1 | 1 | 2 | 1 |
| L | 3 | 3 | 4 | 9 |
| M | 2 | 4 | 3 | 3 |
| P | 3 | 1 | 1 | 1 |
| Q | 1 | 1 | 2 | 1 |
| R | 5 | 5 | 4 | – |
| T | 10 | 10 | 9 | 9 |
| U | 3 | 3 | 9 | 4 |
| V | 1 | 2 | 1 | 1 |
| W | 1 | 1 | 2 | 2 |
| Y | 5 | 5 | 3 | 3 |
Minimum pilot pressure dependent on the tank pressure
Notice:
With higher tank pressures, the minimum pilot pressure must be raised according to this diagram.
Performance limits
(measured with HLP46, ϑOil = 40 ±5 °C)
The switching function of the valves is independent from the filtration due to the adhesive effect. To achieve the specified admissible flow values, a full flow filtration with 25 μm is recommended. The flow forces acting within the valves also influence the flow performance.
With 4-directional valves, the specified flow data are therefore valid for normal operation with 2 directions of flow (e. g. from P to A and simultaneous return flow from B to T).
If there is only one direction of flow, the admissible flow may be considerably less in critical cases (e.g. when using a 4-directional valve as 3-directional valve as port A or B is blocked).
| Characteristic curve | Symbol |
| 1 | A, B |
| 2 | A/O, C, C/O, D, D/O, E, E1‑, G, H, J, L, M, Q, U, W, Y |
| 3 | F, P |
| 4 | R |
| 5 | T |
| 6 | V |
Symbols/Circuit diagrams
| 1) | Example: – Symbol E with spool position "a" → ordering code ..EA.. – Symbol E with spool position “b” → ordering code ..EB.. |
| 2) | Symbol E1-: P → A/B pre-opening |
Notes:
- Representation according to DIN ISO 1219-1.
Hydraulic interim positions are shown by dashes.
- Caution in conjunction with differential cylinders due to pressure intensification.
Types of actuation
| Symbol | Actuating side | Control spool return | Type of actuation |
| A, C, D | ‒ | ‒ |  |
| ‒ | ../O.. |  | |
| ‒ | ../OF.. |  | |
| B, Y | ‒ | ‒ |  |
| E, E1, F, G, H, J, L, M, P, Q, R, T, U, V, W | "a" 1) = .A | ‒ |  |
| "b" 1) = .B | ‒ |  | |
| ‒ | ‒ |  |
| 1) | See symbols |
Dimensions
Dimensions in mm
 Required surface quality of the valve contact surface |
| 1 | Valve with 2 spool positions and 2 actuation cylinders |
| Valve with 3 spool positions and 2 actuation cylinders | |
| 2 | Actuation cylinder “a” |
| 3 | Actuation cylinder “b” |
| 4 | Plug screw for valve with 1 actuation cylinder (2 spool positions) |
| 5 | Identical seal rings for ports A, B, P, T |
| 6 | Name plate |
| 7 | Porting pattern according to ISO 4401-03-02-0-05 (with or without locating hole) |
Valve mounting screws (separate order)
For reasons of stability, exclusively the following valve mounting screws are to be used:
4 hexagon socket head cap screws
ISO 4762 - M5 x 50 - 10.9-flZn-240h-L
(friction coefficient μtotal = 0.09 … 0.14 according to VDA 235-101)
Material no. R913000064
Accessories
Subplates
Subplates
Downloads
 | Directional spool valves, direct operated, with fluidic actuation Data Sheet | RE22282-XC | 2019-10-01 | English | PDF | 667k Product Groups: Direct operated Type WP ...XC, WH ...XC |
| Explosion-protected hydraulic products for industrial and mobile applications Brochure | R999000373 | 2017-03-01 | English | PDF | 5.8MB Product Groups: Pumps, CD - single rod cylinder, Proportional, high-response and servo valves, Axial piston pumps, Mobile controls Product overview |
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