S55 Pressure Gauges
Series 55
PRESSURE GAUGES
294
DIGITAL
PRESSURE GAUGE
TOPRING digital pressure gauge is designed to provide fast,
accurate reading from an easy-to-read digital display.
FEATURES AND BENEFITS
• Four digit backlight digital LCD display
with 1.3 cm numerals
• Can display in PSI, Bar, Kg/cm² and kPa
• Selectable peak, valley or continuous modes
• Screen flashes if pressure reaches S
55
155 PSI or higher
• Easy access to features via two-key keyboard
• 6.7 cm screen with rubber casing for optimal
protection
• Indication of fluid temperature
• Programmable automatic shutdown to extend
battery life
PRESSURE GAUGES
• Water resistant
• Reliable
• Economic
APPLICATIONS
For industrial applications
Pneumatic systems
Pneumatic tools
Air compressor
Machine tools
Rubber casing for
optimal protection
MATERIALS
Case: High impact ABS
Crystal: PET Plastic
Connection: Chrome plated brass
Protection: Rubber
Media: Clean, dry air and non-corrosive gases
Pressure limits: 0 to 155 PSI
Accuracy: ± 1% of full scale
Temperature limits: -20 to 70°C
Thread connection: 1/4 (M) NPT Battery type: 9V Alkaline (included)
Product No
55.700
Description
Digital pressure gauge
Thread Connection
1/4 (M) NPT
TOPRING
SPECIFICATIONS
295
S
55
STANDARD
DRY PRESSURE GAUGES
FEATURES AND BENEFITS
• Stem and connection are machined from a single
TOPRING standard dry pressure gauges are high
quality gauges designed to provide reliable service
on applications not corrosive to Brass
piece of brass
• Precision movement provides accurate readings
PRESSURE GAUGES
7/8 in
DIAMETER
CBM
LM
LOWER MOUNT
CENTER
BACK MOUNT
Pressure
Range PSI
0-60
0-160
1/8 NPT
CBM
1-1/2 in
DIAMETER
Product
No
55.050*
55.055*
Pressure
Range PSI
30” Hg VAC
0-15
0-30
0-60
0-60
0-100
0-160
0-160
0-200
* ABS case, PSI scale only
APPLICATIONS
Used in almost every area of manufac­turing,
especially suitable for:
1/8 NPT
LM
Product
No
55.132
55.133
55.134
55.135
55.145
55.150
1/8 NPT
CBM
Product
No
55.090
55.095
55.100
55.105
55.106*
55.110
55.120
55.121*
55.125
* Crystal glass
• Pneumatic and hydraulic systems
• Compressors
• Most industrial and commercial applications
MATERIALS
Case: Black painted steel
Crystal: Acrylic
Dial: White background, black lettering
Bourdon Tube: Phosphorous Bronze
Movement: Brass and nylon with highly polished
bearing surfaces
Connection: Brass
SPECIFICATIONS
2 in
DIAMETER
Pressure
Range PSI
30" Hg VAC
0-15
0-30
0-60
0-100
0-160
0-200
0-300
1/4 NPT
LM
Product
No
55.190
55.195
55.200
55.205
55.210
55.215
55.220
55.225
1/8 NPT
CBM
Product
No
55.350
55.355
55.360
55.365
55.370
1/4 NPT
CBM
Product
No
55.385
55.390
55.400
55.405
55.410
55.415
55.420
55.425
TOPRING
Standard Dials are dual scale in PSI (black) and kPa (red)
Ambient Temperature: -18 °C to 60 °C
Accuracy: Diameters of 1 1/2 in - 2 in : ± 2.5 % of full scale
Diameters of 2 1/2 in - 4 in : ± 1.6 % of full scale
296
TECH TIP
When pulsation is present, a pressure snubber
(see page 298) should be used in order to
maximize the useful life of the gauge.
WARNING
Working pressure should be limited to 60 %
of the dial range. Where no sharp fluctuations
occur, It should be limited to 90 % of the
dial range.
2-1/2 in
DIAMETER
Pressure
Range PSI
30" Hg VAC
0-15
0-30
0-60
0-100
0-160
0-200
0-300
0-600
0-1000
0-3000
0-5000
1/4 NPT
LM
Product
No
55.285
55.295
55.300
55.305
55.310
55.315
55.320
55.325
55.330
55.332
55.340
55.345
1/4 NPT
CBM
Product
No
55.428
55.430
55.435
55.440
55.445
55.450
55.455
4 in
DIAMETER
Pressure
Range PSI
30" Hg VAC
0-15
0-30
0-60
0-100
0-160
0-200
0-300
0-600
1/4 NPT
LM
Product
No
55.500
55.503
55.505
55.510
55.515
55.520
55.525
55.530
55.540
24_05_2016
FEATURES AND BENEFITS
• Excellent resistance to corrosion
• High grade glycerine, retaining crystal-clear clarity
Used in industrial applications where vibration, pulsation
and shock are present and the media is not corrosive
to Brass
and lubricity over the life of the gauge to prolong
the life of the gauge
2-1/2 in DIAMETER
LM
LOWER MOUNT
CBM
CENTER
BACK MOUNT
Pressure
Range PSI
30" Hg VAC
0-30
0-60
0-100
0-160
0-200
0-300
0-600
0-1000
0-1500
0-2000
0-3000
0-5000
0-10000
1/4 NPT LM
Product
No
55.608
55.613
55.618
55.623
55.628
55.633
55.638
55.643
55.648
55.653
55.658
55.663
55.668
55.688
1/4 NPT CBM
Product
No
55.708
55.713
55.718
55.723
55.728
55.730
55.738
55.743
55.748
55.753
55.758
55.763
55.768
55.788
APPLICATIONS
Most industrial and commercial applications
Pneumatic equipment
Air compressors
Machine tools
Hydraulic presses
MATERIALS
Case: 304 Stainless steel
Crystal: Acrylic
Dial: White background, black lettering
Bourdon Tube: Phosphorous bronze
Movement: Brass with highly polished bearing surfaces
Connection: Brass
SPECIFICATIONS
Standard Dials are dual scale in PSI (black) and kPa (red)
Fluid: Air, water, oil
Ambient Temperature: -18 °C to 60 °C
Accuracy: ± 1.6% of full range
55
PRESSURE GAUGES
BRASS INTERNALS
S
TECH TIP
When vibration is present, the glycerine fill
dampens the Bourdon tube and reduces wear
on the movement. For severe applications,
a pressure snubber (see page 298) should be
used in order to maximize the useful life of
the gauge.
WARNING
Working pressure should be limited to 60 %
of the dial range. Where no sharp fluctuations
occur, It should be limited to 90 % of the
dial range.
TOPRING
STAINLESS STEEL
PRESSURE GAUGES
297
S
55
FEATURES AND BENEFITS
STAINLESS STEEL
PRESSURE GAUGES
• Provide excellent resistance to corrosion, acidity
STAINLESS STEEL INTERNALS
High quality, glycerine filled-pressure gauges designed
for extended service life and reliability
•
•
and alkalinity
Excellent resistance to strong fluctuations, pulsations,
vibration and metal fatigue
High grade glycerine, retaining crystal-clear clarity
and lubricity over the life of the gauge to prolong
the life of the gauge
PRESSURE GAUGES
2-1/2 in DIAMETER
Pressure Range PSI
30" Hg VAC
0-15
0-30
0-60
0-100
0-160
0-200
0-300
0-600
0-1000
0-1500
0-2000
0-3000
0-5000
0-6000
LM
LOWER MOUNT
APPLICATIONS
For severe applications in process, chemical and
petrochemical industries
MATERIALS
Case: 304 Stainless steel
Crystal: Acrylic
Dial: White background, black lettering
Bourdon Tube: 316 Stainless steel
Movement: 316 Stainless steel
Connection: 316 Stainless steel
4 in DIAMETER
Pressure Range PSI
30" Hg VAC
0-15
0-30
0-60
0-100
0-160
0-200
0-300
0-600
0-1000
0-1500
0-2000
0-3000
0-5000
0-6000
0-10000
0-15000
1/4 NPT LM
Product No
55.900
55.905
55.910
55.915
55.920
55.925
55.930
55.935
55.945
55.950
55.955
55.960
55.965
55.970
55.975
55.980
55.985
WARNING
SPECIFICATIONS
Working pressure should be limited to 60 % of the dial range.
Where no sharp fluctuations occur, it should be limited
to 90 % of the dial range.
Standard Dials are dual scale in PSI (black) and kPa (red)
Fluid: Air, water, oil
Ambient Temperature: -18 °C to 60 °C
Accuracy: ± 1.6% of full range
PRESSURE SNUBBER
1/4 NPT LM
Product No
55.800
55.805
55.810
55.815
55.820
55.825
55.830
55.835
55.845
55.850
55.855
55.860
55.865
55.870
55.875
FEATURES AND BENEFITS
TOPRING
• Reduce effects of pressure surge (pulsation)
298
Pressure
snubber
•
•
SPECIFICATIONS
Maximum Working Pressure: 10 000 PSI
Product No
55.005
Thread NPT
1/4
Body
Brass
Filter Element
Porous Bronze
that can damage pressure instruments
Elements of different porosity are included allowing
user to adjust snubbing capacity for specific applications
May also be used as in-line filters
Micron Rating
40 micron
30 micron
25 micron
20 micron
10 micron
Color
Bronze
Black
Brown
Green
Red
Applications
High density fluids (+ 500 SSU)
Medium density fluids (225 to 500 SSU)
Water and low density fluids (30 to 225 SSU)
Very low density fluids (-30 SSU)
Air and gas
ULTRAFLO for superior
performance!
ULTRAFLO European quick couplers
and plugs improve the performance
of pneumatic tools because they
deliver a higher volume of air (up to
80 SCFM). They provide the performance
(airflow) of a 3/8 INDUSTRIAL couplers,
yet they are lighter and more compact,
like the 1/4 INDUSTRIAL couplers.
S20 • 1/4 INDUSTRIAL
S23 • ARO 210
S24 • 1/4 TRUFLATE
S26 • LINCOLN
S21 • 3/8 INDUSTRIAL
S25 • 3/8 TRUFLATE
TOPQUIK
ULTRAFLO
SAFETY
(AUTOMATIC)
225
60
SCFM
PSI
SAFETY
SOLUTION
TOPQUIK SC
5.5 mm
24-37 SCFM
ULTRAFLO
SAFETY
(MANUAL)
360
70
SCFM
PSI
SAFETY
SOLUTION
7 mm
60-70 SCFM
ULTRAFLO European type
couplers provides superior air
tool performance
S31 • ULTRAFLO
HIGH
PERFORMANCE
7.8 mm
50-80 SCFM
ULTRAFLO DEMO KIT
Glass beads run through the
connection to demonstrate
the superior airflow offered by
ULTRAFLO quick couplers compared
to 1/4 INDUSTRIAL couplers.
Product No
96.150
QUIKSILVER
ULTRAFLO
(AUTOMATIC)
with drag guard
to prevent accidental
disconnection
80
500
80
200
SCFM
PSI
AUTOMAX
ULTRAFLO
(AUTOMATIC)
with drag guard
to prevent accidental
disconnection
SCFM
PSI
For the complete selection
of ULTRAFLO quick couplers,
see series 31
299
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