Артикул: RX7564
Proportional directional cartridge valve, pilot-operated, with integrated electronics (OBE) or external control electronics 2WFC; 2WFCE
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Description
- Size 16, 25, 32, 40, 50
- Component series 1X
- Maximum operating pressure 420 bar
- Maximum flow 1500 l/min
- CE according to EMC directive 2014/30/EU
Features
- 2/2-way version
- Robust:
- Pressure resistance up to 420 bar
- High vibration resistance (acc. to DIN EN60068-2)
- Ambient temperature up to +60 °C - Precise:
- High response sensitivity and little hysteresis - Reliable:
- High-quality and proven design - Normalized:
- Installation dimensions according to ISO 7368
- Connectors/interfaces - Flexible:
- In connection with a pressure compensator pressure-compensated flow control possible - Safe:
- Fail-safe position of the main stage in case of power failure, cable break or disconnected enable
Product description
Set-up
The pilot-operated proportional directional valve type 2WFCE basically consists of:
- Cover (1)
- Main stage (2)
- Pilot control valve with proportional solenoid (3)
- Integrated electronics with position transducer and analog interface (4) or external control electronics as module amplifier
The electronics (integrated or external) compare the specified command value to the position actual value of the control spool of the main stage (2). In case of control deviations, the solenoid of the pilot control valve (3) is activated. In this way, the control spool is adjusted. Depending on the control deviation, the control chamber of the main stage (2) is either pressurized with pilot oil (the main stage closes) or unloaded (the main stage opens). Stroke and orifice cross-section are controlled proportionally to the command value until the control deviation is remedied.
For proper function, the following has to be observed:
- Direction of flow A → B (X connected to A)
- Direction of flow B → A (X connected to B)
- Port Y depressurized to the tank
Failure of supply voltage
If the minimum supply voltage fails or is fallen below, the enable is disconnected (only interfaces B1 and G1) and in case of a cable break of the solenoid conductor, the electronics will de-energize the solenoid of the pilot control valve (3). The control spool of the main stage (2) moves securely to its seat using the pressure available at port X and the force of the main stage spring and blocks the flow between A and B.
Flow control function
In connection with a pressure compensator, the pilot-operated proportional directional valve can be used for the pressure-compensated control of a flow.
Type code
| 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | |||
| 2 | WFC | E | S | L | - | 1X | / | / | * |
| 01 | 2 main ports | 2 |
| 02 | Pilot-operated proportional directional valve (cartridge valve) | WFC |
| 03 | With external control electronics | no code |
| With integrated electronics (OBE) | E | |
| 04 | Size 16 | 16 |
| Size 25 | 25 | |
| Size 32 | 32 | |
| Size 40 | 40 | |
| Size 50 | 50 | |
| 05 | Seat control spool | S |
| Rated flow at 5 bar pressure differential | ||
| 06 | – Size 16 | |
| 125 l/min 1) | 125 | |
| 160 l/min 2) | 160 | |
| – Size 25 | ||
| 220 l/min 1) | 220 | |
| 330 l/min 2) | 330 | |
| – Size 32 | ||
| 320 l/min 1) | 320 | |
| 650 l/min 2) | 650 | |
| – Size 40 | ||
| 500 l/min 1) | 500 | |
| 940 l/min 2) | 940 | |
| – Size 50 | ||
| 1000 l/min 1) | 1000 | |
| 1500 l/min 2) | 1500 | |
| Flow characteristic | ||
| 07 | Linear | L |
| 08 | Component series 10 ... 19 (10 ... 19: unchanged installation and connection dimensions) | 1X |
| Seal material (observe compatibility of seals with hydraulic fluid used, see "Technical data") | ||
| 09 | NBR seals | M |
| FKM seals | V | |
| Electrical connection (With external control electronics) | ||
| 10 | 3-pole connector (2+PE) according to DIN EN 175301-803 | K4 3) |
| 11 | Without supply voltage (With external control electronics) | no code |
| Supply voltage 24 V (With integrated electronics (OBE) "E") | 24 | |
| Electrical interface (With integrated electronics (OBE) "E") | ||
| 12 | 0 ... 10 V DC (connector 6+PE) | A1 3) |
| 0 ... 10 V DC (connector 11+PE) | B1 3) | |
| 4 ... 20 mA (connector 11+PE) | G1 3) | |
| 13 | Further details in the plain text | * |
| 1) | Control spool Linear (standard) |
| 2) | Control spool Linear–Progressive |
| 3) | Mating connectors, separate order, see "Accessories" |
Technical data
general
| Size | 16 | 25 | 32 | 40 | 50 | ||
| Weight (approx.) | "2WFCE" | kg | 3.5 | 4.6 | 5.8 | 7.9 | 10.5 |
| "2WFC" | kg | 3.3 | 4.4 | 5.6 | 7.7 | 10.3 | |
| Installation position | Any | ||||||
| Ambient temperature range | NBR seals | °C | -30 … +60 | ||||
| FKM seals | °C | -20 … +60 | |||||
| Maximale Lagerzeit | 1 year (if the storage conditions are observed; refer to the operating instructions 07600-B) | ||||||
| Vibrationsbeständigkeit | Sine test according to DIN EN 60068-2-6 | 10 ... 2000 Hz / maximum 10 g / 10 cycles / 3 axes | |||||
| Noise test according to DIN EN 60068-2-64 | 20 ... 2000 Hz / 10 gRMS / 30 g peak / 30 min / 3 axes | ||||||
| Transport shock according to DIN EN 60068-2-27 | 15 g / 11 ms / 3 axes | ||||||
| Maximale relative Feuchte (keine Betauung) | % | 95 | |||||
| Maximum surface temperature of the coil | °C | 150 | |||||
| MTTFD values according to EN ISO 13849 1) | Years | 75 | |||||
| 1) | For further details, see data sheet 08012 |
hydraulic
| Size | 16 | 25 | 32 | 40 | 50 | |||
| Maximum operating pressure | Anschluss A | bar | 420 | |||||
| Port B | bar | 420 | ||||||
| Minimaler Betriebsdruck 1) | Port A (A → B) | bar | 12 | |||||
| Port B (B → A) | bar | 20 | ||||||
| Maximum pilot pressure | Port X | bar | 420 | |||||
| Maximum return flow pressure | Port Y | bar | 100 1) | |||||
| Nominal flow 2) | Linear | l/min | 125 | 220 | 320 | 500 | 1000 | |
| Linear–Progressive | l/min | 160 | 330 | 650 | 940 | 1500 | ||
| Maximum pilot flow 3) | cm³ | 3 | 5 | 7 | 9 | |||
| Leakage flow | Pilot control valve | at 100 bar | l/min | < 0.15 | < 0.2 | < 0.4 | ||
| Main stage | Interface A1 (0 V) 4) 5) | A → B / B → A locked in a leak-free manner (valve in seat position) | ||||||
| Interface B1 (0 V) | depending on ∆p, see characteristic curves | |||||||
| Interface G1 (4 mA) | depending on ∆p, see characteristic curves | |||||||
| Interface B1, G1 4) 5) 6) | A → B / B → A locked in a leak-free manner (valve in seat position) | |||||||
| Pilot volume 2) | Main stage | cm³ | 1 | 2.7 | 6.4 | 12.6 | 24.5 | |
| Direction of flow 1) | Internal pilot oil supply | A → B | A connected to X | |||||
| B → A | B connected to X | |||||||
| External pilot oil supply | A → B | Pressure in X ≥ pressure in A | ||||||
| B → A | Pressure in X ≥ pressure in B | |||||||
| Hydraulic fluid | see table "Hydraulic fluid" | |||||||
| Viscosity range | Recommended | mm²/s | 20 … 100 | |||||
| Maximum admissible | mm²/s | 15 … 380 | ||||||
| Hydraulic fluid temperature range | flown-through | °C | -20 … +60 | |||||
| Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 7) | Class 18/16/13 | |||||||
| 1) | Counter pressure in port Y; values correspond to Y depressurized to the tank. |
| 2) | With Δp = 5 bar/control edge; flow with deviating Δp see formula. |
| 3) | Stepped input signal (seat position at 100%, pilot pressure 100 bar) |
| 4) | Internal pilot oil supply: Observe leakage flow A → X or B → X via pilot control valve to Y (see technical data leakage flow – pilot control valve) |
| 5) | External pilot oil supply: Leakage flow from A or B via the pilot control valve is avoided; a minimum leakage flow X → B up to 0,03 l/min is, however, possible |
| 6) | Pin 3: 0 V (release not set) |
| 7) | 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 | FKM | ISO 15380 | 90221 |
| HEES | FKM | ||||
| Soluble in water | HEPG | FKM | ISO 15380 | ||
| Flame-resistant | Water-free | HFDU (glycol base) | FKM | ISO 12922 | 90222 |
| HFDU (ester base) | FKM | ||||
| HFDR | FKM | ||||
| Containing water | HFC (Fuchs Hydrotherm 46M, Fuchs Renosafe 500, Petrofer Ultra Safe 620, Houghton Houghto Safe 620, Union Carbide HP5046) | NBR | ISO 12922 | 90223 | |
| Important information on hydraulic fluids:
| |||||
static / dynamic
| Size | 16 | 25 | 32 | 40 | 50 | |
| Hysteresis | % | < 0.2 | ||||
| Range of inversion | % | < 0.1 | ||||
| Response sensitivity | % | < 0.1 | ||||
| Manufacturing tolerance 1) | % | ≤ 10 | ||||
| Temperature drift | %/40 K | < 1 | ||||
| Zero compensation 2) | % | ± 1 | ||||
| 1) | qVmax (control spool Linear) |
| 2) | ex works |
electrical, integrated electronics (OBE)
| Size | 16 | 25 | 32 | 40 | 50 | ||
| Relative duty cycle 1) | % | 100 | |||||
| Protection class according to EN 60529 | IP65 (If a suitable and a correctly mounted mating connector are used.) | ||||||
| Power supply | Nominal voltage | V DC | 24 | ||||
| Lower limit value | V DC | 18 | |||||
| Upper limit value | V DC | 36 | |||||
| Maximum admissible residual ripple 2) | Vpp | 2.5 | |||||
| Current consumption | Maximum | A | 2 | ||||
| Impulse current | A | 3 | |||||
| Maximum power consumption | W | 50 | |||||
| Functional earth and screening | see connector pin assignment (CE-compliant installation) | ||||||
| Required fuse protection | External | 2.5 A time-lag | |||||
| Adjustment | calibrated in the plant, see "characteristic curves" | ||||||
| Conformity | - CE according to EMC directive 2014/30/EU, tested according to EN 61000-6-2 and EN 61000-6-3 - RoHS directive 2015/65/EU - REACH ordinance (EC) no. 1907/2006 | ||||||
| 1) | Continuous operation |
| 2) | Observe the absolute limit values of the supply voltage. |
Diagrams/characteristic curves
(measured with HLP46, ϑOil = 40 ±5 °C)
Size 16
Flow/signal function
Version "125" (A → B; B → A; linear)
Flow/signal function
Version "160" (A → B; B → A; linear-progressive)
Leakage as a function of the pressure differential
(Command value: A1 – 0.5 V; B1 – 0 V; G1 – 4 mA)
Transition function with stepped electric input signals
(pA = pB = 100 bar; port B closed)
Frequency response
(pA = 100 bar)
Size 25
Flow/signal function
Version "220" (A → B; B → A; linear)
Flow/signal function
Version "330" (A → B; B → A; linear-progressive)
Leakage as a function of the pressure differential
(Command value: A1 – 0.5 V; B1 – 0 V; G1 – 4 mA)
Transition function with stepped electric input signals
(pA = pB = 100 bar; port B closed)
Frequency response
(pA = 100 bar)
Size 32
Flow/signal function
Version "320" (A → B; B → A; linear)
Flow/signal function
Version "650" (A → B; B → A; linear-progressive)
Leakage as a function of the pressure differential
(Command value: A1 – 0.5 V; B1 – 0 V; G1 – 4 mA)
Transition function with stepped electric input signals
(pA = pB = 100 bar; port B closed)
Frequency response
(pA = 100 bar)
Size 40
Flow/signal function
Version "500" (A → B; B → A; linear)
Flow/signal function
Version "940" (A → B; B → A; linear-progressive)
Leakage as a function of the pressure differential
(Command value: A1 – 0.5 V; B1 – 0 V; G1 – 4 mA)
Transition function with stepped electric input signals
(pA = pB = 100 bar; port B closed)
Frequency response
(pA = 100 bar)
Size 50
Flow/signal function
Version "1000" (A → B; B → A; linear)
Flow/signal function
Version "1500" (A → B; B → A; linear-progressive)
Leakage as a function of the pressure differential
(Command value: A1 – 0.5 V; B1 – 0 V; G1 – 4 mA)
Transition function with stepped electric input signals
(pA = pB = 100 bar; port B closed)
Frequency response
(pA = 100 bar)
Symbols/Circuit diagrams
With external control electronics
"2WFC"
With integrated electronics (OBE)
"2WFCE"
Notices:
- Representation according to DIN ISO 1219-1.
- Direction of flow
- A → B (X connected to A)
- B → A (X connected to B)
Electrical connection
load errorDimensions
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