Controller
VXF2
Air tank
Vl
Piping length
Controller
Pilot valve
(VX232AA)
VXFA2
Air tank
Vl
Piping length
Piping length
Note 1) If the regulator or the restrictor is installed right before the IN side of the
valve, the valve may oscillate when it is turned off. Keep the regulator or
the restrictor away from the valve for at least 1 m or change restriction.
Note 2) The dust collector valve is a large flow control valve in which air is
discharged with high speed to clean the bag filter with impact wave. Tank
capacity should be sufficient to secure impact wave and discharge flow
rate. If the air tank capacity is insufficient, increased response time,
malfunctions or oscillation may occur.
VXF2
Test circuit
VXFA2
Test circuit
VXF2 Type
VXFA2 Type
2. Discharge Volume
Measuring conditions
Test circuit
…Refer to the circuit below.
Test sample
…
VXF21A
(Port size 3/4)
VXF22A
(
Port size 1)
VXF23A
(Port size 1 1/2)
VXF24A
(Port size 2)
VXF25A, B
(Port size 2 1/2)
VXF26A, B, C, D
(Port size 3)
VXF27B
(Port size 3 1/2)
VXF28B
(Port size 4)
Air tank capacity
…
VXF21
to
VXF22
: 100 L
VXF23
to
VXF24
: 200 L
VXF25
to
VXF28
: 1000 L
Energizing time
…………150 msec
Rated voltage
……………24 VDC
Outlet piping length
……500 mm
Thread size of outlet piping
………Open
How to calculate
1. Set the tank pressure to 0.5 MPa.
2. Close the stop valve on the inlet of the tank.
3. Energize the valve and read the tank pressure after
releasing the pressure.
Measuring conditions
Test circuit
…Refer to the circuit below.
Test sample
…
VXFA21A
(Port size 3/4)
VXFA22A
(
Port size 1)
VXFA23A
(Port size 1 1/2)
VXFA24A
(Port size 2)
VXFA25A, B
(Port size 2 1/2)
VXFA26A, B, C, D
(Port size 3)
VXFA27B
(Port size 3 1/2)
VXFA28B
(Port size 4)
Air tank capacity
…
VXFA21
to
VXFA22
: 100 L
VXFA23
to
VXFA24
: 200 L
VXFA25
to
VXFA28
: 1000 L
Energizing time
……………150 msec
Pilot valve
VX232AA (Orifice, ø5, Rated voltage 24 VDC)
Piping length to the pilot valve
500 mm, 1000 mm, 1500 mm (ø10, t = 1.5)
Outlet piping length
………500 mm
Thread size of outlet piping
………Open
How to calculate
1. Set the tank pressure to 0.5 MPa.
2. Close the stop valve on the inlet of the tank.
3. Energize the pilot valve and read the pressure wave
on the outlet.
Discharge volume
: Valve discharge volume per energizing time
Conversion of the discharge volume
Calculate the discharge volume by reading the tank
pressure after the valve starts the operation.
Conversion equation
V
0
= (P
1
x V
1
− P
2
x V
1
)/P
0
V
0
: Discharge volume [L]
P
1
: Tank initial pressure [MPa] (Absolute pressure)
V
1
: Tank capacity [L]
P
2
: Tank pressure after release [MPa] (Absolute pressure)
P
0
: Atmospheric pressure [MPa] (Absolute pressure)
0
50
100
150
200
0
500
1000
1500
Piping length to the pilot valve [mm]
Discharge volume [L]
0
500
1000
1500
0
500
1000
1500
Piping length to the pilot valve [mm]
Discharge volume [L]
0
500
1000
1500
0
500
1500
1000
Piping length to the pilot valve [mm]
Discharge volume [L]
VXF(A)22A
VXF(A)21A
VXF(A)24A
VXF(A)26
VXF(A)27B
VXF(A)28B
VXF(A)25A, B
VXF(A)23A
Discharge Volume
VXF2/For solenoid valve type, the piping length to the pilot valve should be 0 mm.
Series
VXF2/VXFA2
7
Summary of Contents for VXF2 Series
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