Technical Specifications

Series LFDPTG-3
Center Back Entry Combination
Pressure/Temperature Gauges
Dial Sizes: 2
1
/2" and 3" (65 and 80mm)
Series LFDPTG-3 Combination Pressure and Temperature
Gauges are used in commercial, residential, and institutional
HVAC applications. These gauges are center back entry type
models with black enamel steel cases, Kostil Polymer windows,
1
/2" NPT connections, copper alloy Bourdon tube
pressure elements, and bimetal spiral springs. The LFDPTG-3
features Lead Free* construction to comply with Lead Free*
installation requirements. Accuracy is ASME, Type B. Series
LFDPG-5 gauges are available in various pressure rating scales.
The dual scale features PSI and kPa measurements.
Features
• Black enamel steel case
• Kostil polymer window
• Copper alloy Bourdon pressure element
• Bimetal spiral spring temperature element
• Tin alloy welding
•
1
/2" Lead Free Brass NPT connection
• ASME Type "B" accuracy
Models
LFDPTG-3- Center back entry
LFDPTG-3A- Center back entry with extended
temperature element
LFDPTG-3L- Center back entry with extended mounting nut
Standards
ASME B40.100
EN ISO 9001:2008
EN ISO 14001:2004
Temperature
Working Temperature: 60°F – 320°F (20°C – 160°C)
For Hydronic Boiler & HVAC Applications
ES-LFDPTG-3
Job Name
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Contractor
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Approval
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Engineer
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Approval
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Representative
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Materials
Case: Black enamel steel
Window: Kostil polymer
Pressure Element: Copper alloy Bourdon tube
Temperature Element: Bimetal spiral spring
Welding: Tin alloy
Connector: Lead Free Brass
3" (80 mm) LFDPTG3 2
1
/2" (65 mm)
Dial Dial
LEAD FREE
*
Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements,
please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials with-
out prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.
*The wetted surface of this product contacted by consumable
water contains less than 0.25% of lead by weight.
The information contained herein is not intended to replace the
full product installation and safety information available or the
experience of a trained product installer. You are required to
thoroughly read all installation instructions and product safety
information before beginning the installation of this product.
NOTICE