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Ningbo Chap Mechan-Electro-Hydraulic S&T Development Co.,Ltd is specializing in production of Rubber machinery,Hydraulic Valves,Plastic machinery...
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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

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



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