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®
SERIES SG1 & SG3 | 1.5˝ INDUSTRIAL PRESSURE GAGES
FEATURES/BENEFITS
• Stainless steel housing to resist ambient corrosion for longer service life
in harsh environments
• Good accuracy gage for value-sensitive applications requiring more
precise measurement and where vibration is a concern
• Back or bottom mounting and compact size provides for mounting with
dimensional limitations
APPLICATIONS
• Vacuum is pneumatic conveying lines
• Positive pressure in compressed air headers
• Corrosive ambient environments
DESCRIPTION
The Series SG1 1.5˝ Industrial Pressure Gages are perfect for applications where resistance
to corrosion is necessary. The stainless steel case and ring offer excellent protection from
harsh processes. The SG1 gages are an economical choice where ambient corrosion and
vibration are a concern. Gages are suitable for all uids that are compatible with brass and
bronze, and are available with bottom or back connections.
The Series SG3 1.5˝ Industrial Pressure Gages have dual psi and bar (x100 kPa) scales
with ±2.5% full-scale accuracy. The Series SG3 gages are designed with 304 SS housings
and 316 SS wetted parts for excellent chemical compatibility. These gages cover a wide
variety of ranges from full vacuum to 300 psi. Units can withstand ambient temperatures up
to 140°F (60°C). Bottom or back 1/8˝ NPT connection options available.
SG1 Bottom SG1 Back
SG3 Bottom
SG3 Back
SPECIFICATIONS
Service Compatible liquids and gases.
Wetted Materials SG1: Brass connector, bronze tube; SG3: 316 L SS tube, 316 SS connector.
Housing 304 SS.
Lens Polycarbonate.
Accuracy ±2.5% FS.
Pressure Limit FS range.
Temperature Limits -4 to 140°F (-20 to 60°C).
Size 1.5˝ (40 mm).
Process Connections 1/8˝ male NPT.
Weight SG1: 2.2 oz (63 g) bottom, 2.3 oz (65 g) back; SG3: 2.4 oz (70 g) bottom, 2.5 oz (72 g) back.
dwyer-inst.com
DWYER INSTRUMENTS, INC.
T: 219-879-8000 | F: 219-872-9057 | [email protected]
800-872-9141
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®
DIMENSIONS
[36.60]
PRESSURE
T
[26.00]
PRESSURE
RELIEF VENT
1-39/64
[41.00]
23/64 [9.00]
1/8˝ NPT
1-7/16
1-27/32
[47.00]
1-1/32
[26.00]
HOW TO ORDER
Use the bold characters from the chart below to construct a product code.
SG1 21N-B101 -NISTCAL-PG1
SERIES
SG1: Brass connector gage
SG3: 316 SS connector gage
53/64
[21.00]
1-27/32
[47.00]
1-1/32
RELIEF VEN
1/8˝ NPT
1-39/64
[41.00]
41/64
[16.10]
OPTION
-NISTCAL-PG1: NIST traceable
calibration certicate
CONNECTION
21N: 1/8˝ NPT bottom connection
41N: 1/8˝ NPT back connection
RANGE
B101: 30 in Hg to 0
B103: 0 to 30 psi
B104: 0 to 60 psi
B105: 0 to 100 psi
B106: 0 to 160 psi
B107: 0 to 200 psi
B110: 0 to 300 psi
ACCESSORIES
Model Description
A-445B
NISTCAL-PG1
U-bracket mounting kit for 1.5˝ and 2.5˝ gage
NIST traceable pressure calibration certicate for pressure gages over 1% accuracy.
NOTE: EQUAL CERTS WILL BE CHARGED PER UNITS PURCHASED
Important Notice: Dwyer Instruments, Inc. reserves the right to make changes to or discontinue any product or service identied in this publication without notice. Dwyer advises its customers to obtain the
latest version of the relevant information to verify, before placing any orders, that the information being relied upon is current.
DWYER INSTRUMENTS, INC.
T: 219-879-8000 | F: 219-872-9057 | [email protected]
dwyer-inst.com
800-872-9141
DS-SG1-SG3 | 11/18
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