Watts LFDPTG-1 User Manual

For HVAC Applications

ES-LFDPTG-1

Job Name

Job Location

Engineer

Approval

LEAD FREE

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Series LFDPTG-1

Bottom Entry Combination
Pressure/Temperature Gauges

Dial Sizes: 3" (80mm)

Series LFDPTG-1 Combination Pressure and Temperature
Gauges are used in commercial, residential, and institutional
HVAC applications. These gauges are bottom-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-1
features Lead Free* construction to comply with Lead Free*
installation requirements. Accuracy is ASME
LFDPTG-1 gauges are available in various pressure rating
scales. The dual pressure scale features PSI and kPa mea­surements. The dual temperature scale features ºF and ºC
measurements.

, Type B. The Series

Contractor

Approval

Contractor’s P.O. No.

Representative

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LFDPTG-1

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

• Pressure gauge ASME Type “B” accuracy

Approvals

Certified by The Northern Certification Society of Italy
(Det Norske Verita Italia S.r.l.)

Standards

ASME B40.100

Temperature

Working Temperature: 60°F to 320°F (15.5°C to160°C)

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

* The wetted surface of this product contacted by consumable

water contains less than 0.25% of lead by weight.

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 with­out prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.

Dimensions – Weights

A

C

B

Bottom Entry LFDPTG1

MODEL SCALE TEMP. RANGE INCLUDES VR SIZE DIMENSIONS WEIGHTS
RETAINING VALVE

A B C

°F °C in. in. mm in. mm in. mm lbs. kgs.

LFDPTG1-3 0 – 50psi 345 kPa 32 – 248 0 – 120 N
LFDPTG1-3 0 – 75psi 517 kPa 32 – 248 0 – 120 N
LFDPTG1-3 0 – 200psi 1379 kPa 32 – 248 0 – 120 N

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⁄2 3 76 4 101 1 25 .5 13

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⁄2 3 76 4 101 1 25 .5 13

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A Watts Water Technologies Company

USA: Tel: [phone] • Fax: [phone] • www.watts.com

Canada: Tel: [phone] • Fax: [phone] • www.watts.ca

ES-LFDPTG-1 1407 © 2014 Watts