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Surface / Panel Mount Enclosure (Square Case)
Mounting Holes
9/32 in. (7 mm)
diameter 3 places.
Not available on
panel mount
square case.
Panel Mount Enclosure
(Round Case)
5-7/16 in.
(138 mm)
1/4 in. (6 mm) dia.
holes (3 places.)
on 5-13/64 in.
120
(132 mm) b.c.
(bolt circle),120
apart, clocking
as shown
120
Mounting Hole
4-3/4 in. (121 mm)
diameter.
Process Connection
1/4 NPT Male.
Above Ground Tank
Tank
Head
Pressure
Direct and Remote Tank
Tank
Dimensions
8-7/16 in.
(214 mm)
3-15/16 in.
(100 mm)
4-1/32 in.
(102 mm)
7-7/8 in.
(200 mm)
2-57/64 in.
(73 mm)
120
Panel
Typical Applications
Pressure
®
SWICHGAGE
regulator
Air compressor
Flow regulator
(recommended)
Direct Mount
SWICHGAGE
®
Remote
®
SWICHGAGE
with Sensing Line
Underground
OPLH-94122B page 3 of 4
3-3/8 in.
(86 mm)
1/2 NPT
conduit
NOTE:
Panel mount
square case models
do not include
mounting flange and
include bolt circle
shown in Panel Mount
Enclosure versions
(see below).
Process Connection
1/4 NPT male on
bourdon tube models
and 1/4 NPT female
on bellows models.
Explosion-proof Enclosure ("EX" Option)
8 in.
(203 mm)
6-3/4 in.
(171 mm)
8 in.
(203 mm)
6-3/4 in.
(171 mm)
Mounting Hole
7-35/64 in. (192 mm)
diameter. Not required
for surface mounting.
Process Connection
1/4 NPT Female
Below Ground Tank
Ground surface
Surface
3/8-16 UNC-2B
7/8 in. (22 mm)
deep, 4 places.
6-25/64 in.
(162 mm)
1/2 NPT
optional
rear or side
conduit
Rear mounting holes
Removable lid
for surface mounting
to access adjustable
3/8-16 UNC-2B
contact knobs.
7/8 in. (22 mm)
deep, 4 places.
Flow regulator
(recommended)
SWICHGAGE
®
Underground tank
(vented)
1 foot
Pressure
regulator
Air compressor
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