US Gauge 1559 Data Sheet

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: [phone] or e-mail: [e-mail]

Sales/Technical Support: [phone] | 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

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: [phone] or e-mail: [e-mail]

Sales/Technical Support: [phone] | 205 Keith Valley Road | Horsham PA 19044 U.S.A.

2.93

74.4

3.34

84.8

www.ametekusg.com