Omega Products PGD-45B-100 User Manual
DIFFERENTIAL PRESSURE GAUGES
UNI-DIRECTIONAL OR BI-DIRECTIONAL
PGD-45 Series
20 to 500 psi
Uni-directional or Bi-directional
Starts at
$
900
Heavy-Duty Construction
Double-Strength,
Shatter-Resistant Glass
2-1-2% ANSI Grade A
Accuracy
OMEGA’s PGD Series differential
pressure gauges are rugged
industrial gauges that indicate the
difference between 2 input
connections. Differential ranges
provide the maximum resolution for
applications in which one input is
always at a higher pressure than
the other. In cases in which one
input can be higher or lower than
the other, a bi-directional differential
range should be used.
The PGD Series is constructed with
2 independent Bourdon tubes. The
opposing Bourdon tubes are linked
PGD-45B-30/30, $910,
shown smaller than
actual size. See next
page for dimensions.
to a single pinion gear that rotates a
pointer for direct pressure readings.
By using 2 independent Bourdon
tubes, the gauge can handle liquids
or gases on either or both ports.
The large 4
pressure easy. Each gauge is
equipped with a micrometer
adjustment for rezeroing the gauge.
Gauges are available with ports
located in the lower (six o’clock)
position or in the rear (for panel
mounting).
1
⁄2" dial makes reading
PGD-45L-30, $900,
shown smaller than
actual size. See next
page for dimensions.
PGD Series gauges are
available with ports located
in the back of the gauge
(shown at left), or in the
lower (six o’clock) position
(shown at right).
SPECIFICATIONS
Accuracy: 2-1-2%, ANSI Grade A
2% first 10%, 1% middle 80%,
2% top 10%
Dial Size: 4
Dial Arc: 210°
Window: Double-strength glass
Connection:
Sensor Type: Bourdon tube
Wetted Parts:
Tube: Bronze
Fittings: Brass
Case: Black epoxy-coated aluminum
Operating Temperature: 65°C (150°F)
Weight: 1.4 kg (3 lb)
1
⁄2"
1
⁄4 MNPT
G-63
DIMENSIONS IN in.
DIMENSIONS IN (mm)
A B
C
1/4 NPT
15.08 (0.5938)
SQ. FLATS (15)
J
NUTS AND BOLTS
NOT SUPPLIED
A
ON
JJ
KKC-1
K
3-“L” HOLES DIA. EQUALLY SPAC E D
ON “E” DIA. BOLT CIRCLE
K
D
H
M
F
KK
G
DIFFERENTIAL OR BI-DIRECTIONAL RANGES
PRESSURE
GAUGES
G
Dimensions: mm (in)
PGD-45B-30/30, $910, shown
smaller than actual size. See
below for dimensions.
PGD-45L-30, $900,
shown smaller than
actual size. See below
for dimensions.
To Order (Specify Model Number)
MODEL NO. DIAL SIZE CONNECTION PRICE
PGD-45B-(*) 4
PGD-45L-(*) 4
Insert range code from table at right.
*
Ordering Example: PGD-45B-30, 114 mm (4
with back input connection and 0 to 30 psi uni-directional range, $910.
Dimensions: mm (in)
1
⁄
2" Back $910
1
⁄
2" Lower 900
1
⁄2") differential pressure gauge
MOST POPULAR RANGES HIGHLIGHTED!
RANGE RANGE FIGURE MINOR STATIC PRES.
CODE (psi) INTERVAL GRADUATION LIMIT (psi)*
20 0/20 5 0.2 30
30 0/30 5 0.5 60
60 0/60 10 1 120
100 0/100 10 1 200
200 0/200 20 2 300
600 0/600 100 10 900
1K 0/1000 100 10 1500
15/15 15/0/15 5 0.5 60
30/30 30/0/30 10 1 120
50/50 50/0/50 10 1 200
100/100 100/0/100 20 2 300
200/200 200/0/200 50 5 600
500/500 500/0/500 100 10 1500
Maximum pressure that can be applied to either port on the gauge.
*
PGD-FMR, black flush mount ring for panel mounting, $25.
GAUGE
SIZE ABCC1 DEFGHJKLM NOJJ KK
41⁄2"
149 82 126 149 26 137 27 91 40 5 15 6 125 17 17 3 148
(57⁄8) (31⁄32) (415⁄16) (57⁄8) (11⁄16) (53⁄8) (11⁄16) (39⁄16) (19⁄16)(3⁄16)(19⁄32)(7⁄32) (415⁄16)(21⁄32)(21⁄32)(1⁄8) (513⁄16)
Recommended Reference Book: Liquid Filtration, CM-4427, $105.
Visit omega.com/bobi for Additional Books
G-64
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