Symbol Description
NNq
Body size
20 25 30 40 50 60
Ny
Semi-standard
c
Set
pressure
*
6
Nil
0.05 to 0.85 MPa setting
1
0.02 to 0.2 MPa setting
+
d
Exhaust
mechanism
Nil
Relieving type
N
Non-relieving type
+
e Flow direction
Nil
Flow direction: Left to right
R
Flow direction: Right to left
+
f Knob
Nil
Downward
Y
Upward
+
g Pressure unit
Nil
Name plate and pressure gauge in SI units: MPa
Z
*
7
Name plate and pressure gauge in imperial units: psi
*
9
*
9
*
9
*
9
*
9
*
9
ZA
*
8
Digital pressure switch: With unit selection function
*
10
*
10
*
10
*
10
*
10
*
10
Model
AR20-B AR25-B AR30-B AR40-B AR40-06-B AR50-B AR60-B
Port size 1/8, 1/4 1/4, 3/8 1/4, 3/8 1/4, 3/8, 1/2 3/4 3/4, 1 1
Pressure gauge port size
*
1
1/8
Fluid Air
Ambient and fluid temperature
*
2
–5 to 60°C (with no freezing)
Proof pressure 1.5 MPa
Maximum operating pressure 1.0 MPa
Set pressure range 0.05 to 0.85 MPa
Construction Relieving type
Weight [kg] 0.16 0.21 0.29 0.44 0.47 1.17 1.22
*1 Pressure gauge connection threads are not available for F.R.L. unit with a square embedded type pressure gauge or with a digital pressure switch.
*2 –5 to 50°C for the products with the digital pressure switch
Standard Specifications
*1 Set the inlet pressure to at least 0.05 MPa higher than the set pressure.
*2 Options B, G, H, M are not assembled and supplied loose at the time of shipment.
*3 Assembly of a bracket and set nuts (applicable to the AR20(K)-B to AR40(K)-B).
Including 2 mounting screws for the AR50(K)-B and AR60(K)-B
*4 When the pressure gauge is attached, a 1.0 MPa pressure gauge will be fitted for
standard (0.85 MPa) type. 0.4 MPa pressure gauge for 0.2 MPa type.
*5 When choosing with H (panel mount), the installation space for lead wires will not
be secured. In this case, select “wiring top entry” for the electrical entry. (Select
“wiring bottom entry” when the semi-standard Y is chosen simultaneously.)
*6 Pressure can be set higher than the specification pressure in some cases, but use
pressure within the specification range.
*7 For pipe thread type: NPT.
This product is for overseas use only according to the new Measurement Act.
(The SI unit type is provided for use in Japan.)
Cannot be used with M: Round type pressure gauge (with color zone). Available
by request for special.
The digital pressure switch will be equipped with the unit selection function, setting
to psi initially.
*8 For options: E1, E2, E3, E4. This product is for overseas use only according to the
new Measurement Act. (The SI unit is provided for use in Japan.)
*9 : For pipe thread type: NPT only
*10 : Select with options: E1, E2, E3, E4.
AR40-B, AR40K-BAR20-B, AR20K-B
68
Regulator
AR20-B to AR60-B Series
Regulator with Backflow Function
AR20K-B to AR60K-B Series
