
2
How to order
WFK2
Series
Code
Content
A
Flow rate range
005
0.4 to 5 L/min
020
1.6 to 20 L/min
050
4.0 to 50 L/min
100
8.0 to 100 L/min
250
20 to 250 L/min
B
Port size
AA
Rc3/8
Flow rate range: 005, 020, 050
BA
Rc1/2
CA
Rc3/4
DA
Rc1
Flow rate range: 100, 250
EA
Rc1 1/4
FA
Rc1 1/2
AB
G3/8
Flow rate range: 005, 020, 050
BB
G1/2
CB
G3/4
DB
G1
Flow rate range: 100, 250
EB
G1 1/4
FB
G1 1/2
AC
NPT3/8
Flow rate range: 005, 020, 050
BC
NPT1/2
CC
NPT3/4
DC
NPT1
Flow rate range: 100, 250
EC
NPT1 1/4
FC
NPT1 1/2
C
IO-Link analog output
* "D", "E", and "F" have the analog output specifications from before IO-Link is used.
A
Switch/analog output 0 to 5 VDC/1 to 5 VDC
B
Switch/analog output 4 to 20 mA DC
C
Switch/analog output 0 to 10 VDC/1 to 10 VDC
D
IO-Link compatible 0 to 5 VDC/1 to 5 VDC
E
IO-Link compatible 4 to 20 mA DC
F
IO-Link compatible 0 to 10 VDC/1 to 10 VDC
D
Display unit
A
L/min L m
3
°C
B
L/min us gal/min L m
3
us gal °C °F
*1
E
Manual valve
N
Sensor only
A
With manual valve (cock type)
*2
F
Option (attached cable)
Blank
None
A
Standard cable (M12/4-conductor/ 3 m) attached
B
Double ended connector cable (M12/4-conductor/ 3 m) attached
G
Option (attached bracket)
Blank
None
C
Attached bracket
*3
How to order
[Example of model No.]
WFK2-005AAAAN-AC
A
Flow rate range : 0.4 to 5 L/min
B
Port size : Rc3/8
C
IO-Link analog output:
Switch/analog output
0 to 5 VDC/1 to 5 VDC
D
Display unit
: L/min L m
3
°C
E
Manual valve : sensor only
F
Option : standard cable attached
G
Option : attached bracket
A
Flow rate
range
B
Port size
D
Display unit
E
Manual valve
C
IO-Link analog output
F
Option
(attached cable)
G
Bracket
(attached bracket)
A
WFK2
A N
A C
005 AA
Precautions for model No. selection
*1: The unit display "B" is for overseas use and
cannot be used in Japan.
*2: Option A (with manual valve) has a flow rate
range of 005, 020, or 050 only.
*3: When selecting option A and the bracket (C),
it is a bracket 2 set attachment.
WFK2-005
WFK2-100
WFK2-020
WFK2-250
WFK2-050
Pressure loss
0.07
0.050
0.030
0.040
0.025
0.030
0.020
0.020
0.015
0.010
0.010
0.005
0.06
0.05
0.05
0.05
0.04
0.04
0.04
0.03
0.03
0.03
0.02
0.02
0.02
0.01
0.01
0.01
0.00
0.000
0.00
0.010
0.00
0
0
0
0
0
1
20
5
50
10
2
40
10
100
20
3
60
15
150
30
4
80
20
200
250
40
50
5
100
Flow rate [ℓ/min]
Flow rate [ℓ/min]
Flow rate [ℓ/min]
Flow rate [ℓ/min]
Flow rate [ℓ/min]
Pressure loss
[MPa]
Pressure loss
[MPa]
Pressure loss
[MPa]
Pressure loss
[MPa]
Pressure loss
[MPa]