
B
1
D
A
C
1
E
1
F
1
A
A
B
2
E
2
F
2
C
2
D
LOW-COST, LIQUID-FILLABLE 
UTILITY GAUGES
PGUF Series
PGUF-25B-100PSI/7BAR, 
center back-mount gauge, 
$20, shown actual size.
Starts at
$
20
 Dual Scales in psi 
and bar Standard
 Economically Priced 
 2.5% Full Scale Accuracy 
 38, 50, or 63 mm Dia.
1
⁄2, 2, or 21⁄2")
(1
 Center Back- or 
Lower-Mount Fittings
OMEGA’s PGUF Series liquidfillable utility gauges are designed 
for a wide range of applications on 
pumps, compressors, hydraulic 
systems, machine tools, and 
petrochemical processing 
equipment. For high-shock 
and vibration applications, the 
PGUF can be liquid-filled in the 
field to dampen the gauge 
pointer movement. 
The PGUF Series liquid-fillable 
gauges come in ranges of (psi/bar) 
0 to 30/2, 60/4, 100/7, 160/11, 
300/21, 600/42, and 1000/70 
[the 63 mm (2 
available in 2000/140 and 
3000/210]. Rated accuracy is 
±2.5% of span. 
The gauges feature a corrosionresistant 304 SS case and ring, 
and a durable polycarbonate 
window. Phosphor bronze Bourdon 
tubes with brass movement, 
socket, and NPT connections 
are standard. PGUF gauges 
are available in 38 mm (1 
50 mm (2"), and 63 mm (21⁄2") 
designs with center back- or 
lower-mount NPT connections.
1
⁄2") gauge is also
1
⁄2"), 
PGUF Series
G-47
PGUF-20L-100PSI/7BAR, 
lower-mount gauge, $20, 
shown actual size.
Dimensions Table
on Next Page

HOW TO ORDER PGUF SERIES GAUGES
PGUF-20B-60PSI/4BAR, 
$20, shown slightly larger 
than actual size. 
PRESSURE
GAUGES
G
SPECIFICATIONS
Ranges: From 30 psi/2 bar to 1000 psi/70 bar 
[2000 psi/140 bar and 3000 psi/200 bar ranges 
on 63 mm (21⁄2") models only] 
Accuracy: ±2.5% 
Bourdon Tube: Phosphor bronze 
Window: Polycarbonate 
Dial: Galvalume white background with blue and
black markings
Pointer: Galvalume black finish 
Movement: Brass 
Case and Ring: 304 SS 
Connection: 
[1⁄8 MNPT on 38 mm (11⁄2") dials]
Seals: Buna-N 
Scale: Dual scale psi/bar 
Compatible Filling Liquids: Glycerin, silicone oil
or mineral oil
Dimensions: mm (in)
DIAL SIZE A B1 B2 C1 C2 D E1 E2 F1 F2
38 (11⁄2)  45.5 26.7 — 20.9 — 14.5 8.6 — 19.6 —
(CBM†only) (1.79) (1.05) — (0.82) — (0.57) (0.34) — (0.77) —
(2) (2.33) (1.12) (1.14) (1.05) (0.40) (0.57) (0.24) (0.29) (0.76) (0.79)
(21⁄2) (2.76) (1.33) (1.33) (1.27) (0.44) (0.57) (0.46) (0.30) (1.00) (0.82)
† Center back mount.
1
⁄4 MNPT
50  59.2 28.4 29.0 26.7 10.2 14.5 6.1 7.4 19.4 20.1
63  70.1 33.8 33.8 32.3 11.2 14.5 11.7 7.6 25.4 20.8
PGUF-25B-100PSI/7BAR,
$20, shown slightly larger
than actual size. 
MOST POPULAR RANGES HIGHLIGHTED!
STANDARD RANGES
RANGE CODE  OUTER SCALE (psi) INNER SCALE (bar)
30PSI/2BAR  0 to 30 0 to 2 
60PSI/4BAR 0 to 60 0 to 4 
100PSI/7BAR 0 to 100 0 to 7 
160PSI/11BAR 0 to 160 0 to 11 
300PSI/21BAR 0 to 300 0 to 21 
600PSI/42BAR 0 to 600 0 to 42 
1000PSI/70BAR 0 to 1000 0 to 70 
2000PSI/140BAR** 0 to 2000 0 to 140 
3000PSI/210BAR** 0 to 3000 0 to 210
63 mm (21⁄2") gauges only.
**
MOST POPULAR MODELS HIGHLIGHTED!
To Order (Specify Model Number)
DIAL SIZE PRICE PRICE PRICE
mm (in) MODEL NO. CONNECTION
38 (11⁄2) PGUF-15B-[*]
50 (2) PGUF-20L-[*] 
50 (2) PGUF-20B-[*]
63 (21⁄2) PGUF-25L-[*] 
63 (21⁄2) PGUF-25B-[*]
[*] Insert range code from Standard Ranges table above. 
Ordering Examples: PGUF-20L-60PSI/4BAR, 50 mm (2") gauge with lower fitting scaled 0 to 60 psi and 0 to 4 bar, $20. 
PGUF-20B-60PSI/4BAR, 50 mm (2") gauge with back fitting scaled 0 to 60 psi and 0 to 4 bar, $20.
1
⁄8" back $20  $20 —
1
⁄4" lower 20 20 —
1
⁄4" back 20  20 —
1
⁄4" lower 20 23 $26
1
⁄4" back 20 23 26
<1000PSI/70BAR 1000PSI/70BAR >1000PSI/70BAR
Recommended Reference Book: Handyman in Your Pocket, GE-2408, $15. Visit omega.com/bobi for Additional Books
G-48

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