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Proportional directional valve (BFWE 2X)
The 4/2-and 4/3-way directly operated Proportional directional valves,
Spool with electrical position feedback.
Type BFWE and BFWNE
Nominal sizes DN6 and DN10
Component series 2X
Maximum operating pressure 315bar
Maximum flow 80L/min (DN6)
Maximum flow 180L/min (DN10)
Spool with electrical position feedback.
Type BFWE and BFWNE
Nominal sizes DN6 and DN10
Component series 2X
Maximum operating pressure 315bar
Maximum flow 80L/min (DN6)
Maximum flow 180L/min (DN10)
Proportional Directional Valve (BFWE 2X)
Technical data (For application outside these parameters please consult with us)
| Specification | BFWE | BFWNE |
| Installation position | Optional, preferably horizontal | |
| Storage temperature range (°C) | -20~80 | |
| Ambient temperature range (°C) | -20~70 | -20~50 |
Tested under the condition of (P=100bar, Mineral oil HLP4+, 40°C±5°C)
| Operating pressure (bar) | Ports A, B, P | 315 | ||
| Port T | 100 | |||
|
Nominal flow Qvnom Max at p=10bar (L/min) |
DN6 | 8 | 16 | 32 |
| DN10 | 25 | 50 | 75 | |
| Flow (Max. Permissible) (L/min) | DN6 | 80 | ||
| DN10 | 180 | |||
| Pressure fluid | Mineral oil (HL, HLP) to DIN 51 524; For other fluid please consult with us. | |||
| Fluid temp. Range (°C) | -20~80 (+40~+50 is preference) | |||
| Viscosity range (mm²/s) | 20~380 (30~46 is preference) | |||
| Hysteresis (%) | ≤0.1 | |||
| Reversal span (%) | ≤0.05 | |||
| Response sensitivity (%) | ≤0.05 | |||
| Zero displacement will vary in pressure oil temperature and working temperature. | %/100 (K) | 0.15 | ||
| %/100 (bar) | 0.1 | |||
| Cleanliness | Maximum permissible degree of pressure fluid contamination to NAS 1638 to class 9 Recommended filter β10≥75 | |||
Electrical
| Voltage type | Direct voltage | |||
| BFWN Command signal | Voltage input “A1” | (V) | ±10 | ±10 |
| Current input “F1” | (mA) | 4~20 | 4~20 | |
| Max. Current per solenoid (A) | 2.5 | 2.5 | ||
| Solenoid coil Resistance (Ω) | Cold value at 20°C | 6DN2.7 | 10DN3.7 | |
| Max. Warm value | 6DN4.05 | 10DN5.55 | ||
| Duty cycle (%) | 100 | |||
| Max. Coil temperature2) (°C) | up to 150 | |||
| Electrical connection | socket as per DIN EN 175 301-803 and ISO 4400 with component plug to DIN EN 175301-803 and ISO 4400 | socket as per DIN EN 43 563-AM6-3 with component plug to DIN 43 563-BF6-3/Pg11 | ||
| Insulation of valve to DIN 40 050 | IP 65 | |||
Control electronics
| BFW (type) | Analogue amplifier in Eurocard format3) | Details refer to proportional amplifier | |||
| Digital amplifier in Eurocard format3) | Details refer to proportional amplifier | ||||
| BFWN (type) | Analogue command value module | Integrated into the valves A1.4 | |||
| Supply voltage |
BFWE1) BFWNE |
Rated voltage | VDC | 24 | |
| Lower limiting value | V | 21/22 | 19.4 | ||
| Upper limiting value | V | 35 | |||
| Amplifier current consumption | Imax | A | 2 | 2 | |
| Max. Impulse current | A | 3 | 3 | ||
1) With HOYEA control amplifier.
2) Due to the occurring surface temperature of the solenoid coils, the European Standards DIN EN 563 and DIN EN 982.
3) Separate order.