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Feedback proportional directional valve-proportional directional valve
This BFFW model is a direct-action proportional directional control valve, which is controlled by a proportional solenoid with electrical feedback. It is used to control the flow rate and direction. The high flow capacity, low hysteresis and good repeatability, all making it ideal for closed control loops, helps itself to find wide applications in the automation devices such as machine tools, light industry, metal, mining and aerospace.
Technical
Hydraulic Section
Electric Section
Model instruction
Code symbol
3-position 4-way 2-position 4-way
Outside size
Technical
Hydraulic Section
Model |
6 |
10 | |
Maximum pressure (MPa) |
PA B |
31.5 |
31.5 |
T |
16 |
16 | |
Flow (l/min) |
65 |
130 | |
Hysteresis (%) |
<1 | ||
Repeatability (%) |
<1 | ||
Filtration Accurancy (um) |
20 | ||
Responding sensitive |
<0.5 Nominal single | ||
Filtration Accurancy (um) |
6 |
4 | |
Hydraulic Fluid |
Mineral Oil, Phosphate | ||
Viscosity (mm2/s) |
2.8~100 | ||
Fluid Temp. () |
-20~70 | ||
Fixing Position |
Mineral Oil,Phosphate | ||
Weight (Kg) | 2-Position |
1.9 |
5.6 |
3-Position |
2.6 |
7.6 |
Electric Section
Electrical Source model and pressure |
DC24Vor12V | ||
Maximum current (A) |
1.5 | ||
Coil Resistance |
20 cold state value |
5.4 |
10 |
Maximum hot state value |
8.1 |
15 | |
Working state | |||
Coil Temp |
+50 | ||
Environmental Temp |
+150 | ||
Insulation requirement |
IP65 | ||
Amplifier | 2 brae time |
VT-5001S202-position 4-way) |
VT-5002S202-position 4-way |
1 brae time |
VT-5005S203-position 4-way) |
VT-5006S203-position 4-way | |
Electrical measuring system |
Variable differential transformer | ||
Working Journey (mm) |
+4.5beeline | ||
Linearity ( ) |
1 | ||
Coil Reesistance |
IR20 |
56 | |
IIR20 |
56 | ||
IIIR20 |
112 | ||
Inductor (mH) |
6~8 | ||
Frequency (KHz) |
2.5 | ||
Insulation requirment |
IP65 |
Model instruction
Code symbol
3-position 4-way 2-position 4-way
Outside size