Page 1
Product Data
LIQUID FILLED GAUGES
Models 1555, 1558, 1559 1-1/2", 2" and
2-1/2" Low Cost Utility Gauges, SST
Case with Brass Internals
5LFG -
DESCRIPTION
U.S. Gauge Models 1555, 1558 and 1559 liquid filled
utility gauges are designed for a wide range of rugged
service applications on pumps, compressors, hydraulic
systems, machine tools, and petrochemical processing
equipment. Liquid fill fluid dampens the gauge pointer
movement and improves readability, making these instruments ideal for high shock and vibration applications.
Models 1555, 1558 and 1559 liquid filled gauges are
available in psi and bar, kPa, and kg/cm2 metric ranges.
Rated accuracy is ±3-2-3% of span (Grade B).
Gauges feature a corrosion resistant 300 series stainless steel case and ring, and durable poly carbonate
window. A phosphor bronze Bourdon tube, brass movement, and socket connections are standard. The lower
mount (LM) Model 1555 comes in 2" and 2-1/2" versions
with a 1/4-18 NPT connection. The model 1559 is a center back mount (CBM) gauge that comes in a 1-1/2" design with a 1/8-27 NPT connection or the 2" and 2-1/2"
designs with a 1/4-18 NPT connection. The Model 1558
is a 2-1/2" center back mount (CBM) gauge with a front
flange for panel mounting.
Glycerin is the standard fill fluid, with silicone and
mineral oil available upon request. These gauges are
also available dry, and can be filled at a local distributor
or at your facility.
SPECIFICATIONS
SIZES: 1-1/2", 2", 2-1/2"
RANGES: Dual scale psi/bar (100 x kPa)
ACCURACY: ±3-2-3% of span (Grade B)
BOURDON TUBE: Phosphor bronze
WINDOW: Polycarbonate
MOVEMENT: Brass
DIAL: Aluminum, white background with blue and black
markings
POINTER: Aluminum, black finish
CASE AND RING: 300 series stainless steel
CONNECTION: 1-1/2" – 1/8-27 CBM, NPT; 2" and 2-1/2" – 1/4-18
NPT LM, CBM and CBM with front flange
SEALS: BUNA-N
Low Pressure Vent Plug
A vent plug with pop-up pin is
used for all low pressure gauges,
from 30" Hg to 30 psi. For gauges
in pressure ranges of 60 psi and
above a standard one piece black
BUNA-N plug is used.
Model 1558
Model 1555
Model 1559
On-line order fax: +1 215-323-9450 or e-mail: usg.sales@ametek.com
Sales/Technical Support: +1 215-293-4100 | 205 Keith Valley Road | Horsham PA 19044 U.S.A.
© 2013, by AMETEK, Inc. All rights reserved. Printed in the U.S.A. PDF513 (160174)
Specifications are subject to change without notice. Visit our Web site for the most up-to-date information.
Models 1559
www.ametekusg.com
Page 2
Product Data
C
X
ØM
LIQUID FILLED GAUGES
Models 1555, 1558, 1559 1-1/2", 2" and
2-1/2" Low Cost Utility Gauges, SST
Case with Brass Internals
6LFG -
A
B1
Model 1559
F1
SQUARE
E
INCHES
(MM)
A
A
F2 HEX
W
Model 1555
B2
F2 HE
Dimensions
Dial Sizes Unit Connection A B1 B2 C E F1 F2 W
1-1/2"
2"
2-1/2"
inches
mm
inches
mm
inches
mm
CBM
LM
CBM
LM
CBM
1.72
43.7
2.25
57.2
2.67
67.8
G
B1
1.02
25.9
1.09
27.7
1.34
34.0
–
–
1.10
27.9
1.30
33.0
–
–
0.39
9.9
0.41
10.4
0.75
19.1
0.74
18.8
1.12
28.5
ØN
A*
0.55
14.0
0.55
14.0
0.55
14.0
–
–
0.55
14.0
0.55
14.0
–
–
0.35
8.9
0.35
8.9
INCHES
(MM)
ØK
ØD
Model 1558
psi
3 x ØJ
Dimensions
Dial Sizes Unit A B1 D G J K N M
2-1/2"
© 2013, by AMETEK, Inc. All rights reserved. Printed in the U.S.A. PDF513 (160174)
Specifications are subject to change without notice. Visit our Web site for the most up-to-date information.
inches
mm
2.67
67.8
1.34
34.0
2.39
60.7
2.31
58.7
0.125
3.2
2.67
67.8
On-line order fax: +1 215-323-9450 or e-mail: usg.sales@ametek.com
Sales/Technical Support: +1 215-293-4100 | 205 Keith Valley Road | Horsham PA 19044 U.S.A.
2.93
74.4
3.34
84.8
www.ametekusg.com
Page 3
Product Data
LIQUID FILLED GAUGES
Models 1555, 1558, 1559 1-1/2", 2" and
2-1/2" Low Cost Utility Gauges, SST
Case with Brass Internals
Spec Number Selection Chart
1-1/2" Stem
Series
†
P-1550
Bourdon Tube Phosphor Bronze Phosphor Bronze Phosphor Bronze Phosphor Bronze Phosphor Bronze Phosphor Bronze
Connection Brass Brass Brass Brass Brass Brass
Model Number 1559 1555 1559 1555 1559 1558
Ranges* Spec No. Spec No. Spec No. Spec No. Spec No. Spec No.
0-30" Hg VAC – – – 171722A 171733A 172317A
30"-0-15 psi – – – 171723A 171734A 172318A
30"-0-30 psi – – – 171724A 171735A 172319A
30"-0-60 psi – – – 171725A 171736A 172320A
30"-0-100 psi – – – 171726A 171737A 172321A
30"-0-150 psi – – – 171727A 171738A 172322A
0-15 psi – – – 171728A 171739A 172323A
0-30 psi 166664 165282 165289 165296 165303 172324A
0-60 psi 166665 165283 165290 165297 165304 172325A
0-100 psi 166666 165284 165291 165298 165305 172326A
0-160 psi 166667 165285 165292 165299 165306 172327A
0-200 psi – – – 171729A 171740A 172328A
0-300 psi 166668 165286 165293 165300 165307 172329A
0-400 psi – – – 171730A 171741A 172330A
0-600 psi – 165287 165294 165301 165308 172331A
0-1000 psi 166669 165288 165295 165302 165309 172332A
0-1500 psi – – – 171731A 171742A 172333A
0-2000 psi – – – 165377 165380 172334A
0-3000 psi – – – 165378 165381 172335A
0-5000 psi – – – 171732A 171743A 172336A
†
Stainless steel case and crimped ring
* All dials have 3 scale dial face (psi /bar / x100 = kPa); other scales and ranges are available, please contact Customer Service at +1 215-293-4100
OPTIONS AVAILABLE ON SPECIAL REQUEST (Consult factory for pricing)
1. Center back mount with U-clamp (fixed on case)
2. U-clamp kit available for 2-1/2" 1559 (169861A)
Mounting
1/8-27 NPT
Center Back Mount
Connection
1/4-27 NPT
Lower Mount
Connection
2" Stem
Mounting
1/4-18 NPT
Center Back Mount
Connection
2-1/2" Stem
1/4-18 NPT
Lower Mount
Connection
Mounting
1/4-18 NPT
Center Back Mount
Connection
2-1/2" Front
Flange Panel
1/4-18 NPT
Center Back Mount
Connection
7LFG -
On-line order fax: +1 215-323-9450 or e-mail: usg.sales@ametek.com
Sales/Technical Support: +1 215-293-4100 | 205 Keith Valley Road | Horsham PA 19044 U.S.A.
© 2013, by AMETEK, Inc. All rights reserved. Printed in the U.S.A. PDF513 (160174)
Specifications are subject to change without notice. Visit our Web site for the most up-to-date information.
www.ametekusg.com
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