7. Assembly of Optional Parts
7-1. Bracket (Panel mount)
1)
Bracket mounting
2)
Secure with the set nut
3)
Tightening
Note) When retightening
7-2. Pressure gauge (round type)
1)
Pressure gauge mounting (round type)
Wrench size
Note1
）
Positioning of pressure gauge
Note2
）
Note3
）
Torque control
-11-
Please use the value in the torque table described in
"Piping" on page 5 when controlling the tightening torque.
Mount the bracket to the regulator as shown in the
picture.
Assemble so that the rotation stopper of the regulator and
the bracket are engaged properly.
Ensure that the knurled faces of the bracket and the set
nut are facing each other.
Turn the set nut while the regulator is aligned correctly
with the bracket. The knurling of the bracket and set nut
stops loosening of the screw. Usually, these can be
tightened adequately by hand. (Extra tightening is
recommended for panel mounting).
Please use a hook wrench on the grooves of the set nut.
After hand tightening, follow the values in the table below
for retightening.
Before mounting the pressure gauge onto the pressure
gauge port of the regulator, confirm that sealing material
has been applied to the pressure gauge.
Please refer to "Piping" on page 5 when using sealing
tape.
Adjust the pressure gauge position by tightening it.
Adjustment in loosening direction may cause air leakage.
No plug is mounted onto the pressure gauge port of
product with a round type pressure gauge.
Set nut
Bracket
Model
Tool size
Amount of
retightening
Reference torque
AR20M-D
34/38
2.0+/-0.2 N m
AR30M-D
52/55
3.5+/-0.3 N m
AR40M-D
52/55
4.0+/-0.4 N m
2 to 5 notch
Model
Tool size
AR20M-D
AR30M-D
AR40M-D
14
(
Knurled face)
(
Knurled
face)
Grooves for
applying wrench
Rotation stopper
Regulator
Pressure gauge
(round type)
Regulator
Pressure gauge port
Wrench flats
