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product detail
  • Product Name： Proportional Valves
  • Model No： BFW-type Directional Proportional Valve
  • OR
Description:

The built-in 4/2 and 4/3-way directly operated
proportional solenoid valves The built-in 4/2 and 4/3-way directly operated
proportional solenoid valves

direct operated spool without electrical position feedback
Type BFW and BFWN

Nominal sizes 6 and 10
Component series 2X
Maximum operating pressure 315bar
Maximum flow 42L/min (DN6)
Maximum flow 75L/min(DN10)

Model instruction


Technical data (For application outside these parameters please consult with us)

Genera BFW BFWN
Installation position optional, preferably horizontal
Storage temperature range ℃ -20~80
Ambient temperature range ℃ -20~70 -20~50
Weight DN 6kg 2.0 2.2
DN 10kg 6.6 6.8

Hydraulic

Operating pressure Ports A，B，P Bar 315
Port T              bar 210
Nominal flow qvnom
在△p=10 bar时		 DN 6 L/min 7，15and26
DN 10 L/min 80 with double flow
Flow (Max. Permissible) DN 6 L/min 140with double flow
DN 10 L/min  
Pressure fluid Mineral oil (HL, HLP) to DIN 51 524;For other fluid please consult with us.
Fluid temp. Range ℃ -20~80(优先选择 40~ 50 is preference)
Viscosity range mm2/s 20~380(优先选择30~46is preference)
Fluid contamination cleanliness Maximum permissible degree of pressure fluid contamination
to NAS 1638 to class 9 Recommended filter βx≥75 X=10
Hysteresis % ≤5
Reversal span % ≤1
Response sensitivity % ≤0.5

Electrical

Type BFW BFWN
Voltage type Direct Voltage

(Type)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

 Cold value at 20 ℃ Ω 2 2
Max. warm value Ω 3 3
Duty cycle % 100
Coil temperature （max） ℃ 可达 up to150
Electrical connection BFW Plug-in connector to DIN EN 175301-803 and ISO 4400
BFWN Plug-in connector to DIN EN 175301-803 and ISO 4400
Plug-in connector to DIN 43563-AM-3
Type of insulation to DIN 40 050 IP 65
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