Watts LF3100 User Manual
For Residential and Commercial Applications
ES-LF3100
Job Name
Job Location
Engineer
Approval
LEAD FREE
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*
Series LF3100
Dielectric Flanged Pipe Fittings
Sizes: 21⁄2" – 4" (65-100mm)
LF3100M3 dielectric unions feature an iron pipe thread by
copper solder joint. These fittings are designed to be installed
between pipe made from dissimilar metals to prevent accelerated corrosion and deterioration in the piping system due to
galvanic and stray current. The LF3100M3 features Lead Free*
construction to comply with Lead Free* installation requirements.
Features
• Iron pipe thread to copper solder joint
• Designed and manufactured to the highest quality standards
• Flanges rated to at 175psi (12.1 bar) and bolting conforms to
ANSI B16.1 standard
Contractor
Approval
Contractor’s P.O. No.
Representative
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Pressure — Temperature
Maximum Pressure: 175psi (12.1 bar)
Maximum Temperature: 180°F (82°C)
LF3100M3
Specifications
The dielectric fittings shall be constructed using Lead Free*
materials. Lead Free* dielectric fittings shall comply with state
codes and standards, where applicable, requiring reduced lead
content. The dielectric union shall be a Watts Series LF3100M3.
A
B
Materials — Dimensions — Weights
LF3100M3
Size MATeRiALS DiMeNSiONS WeiGHT
in. mm in. mm in. mm oz. gm.
21⁄2 65 Lead Free Brass Gray Iron Steel Polysulfone Buna-N 57⁄8 149 41⁄4 108 13 6
3 80 Lead Free Brass Gray Iron Steel Polysulfone Buna-N 6
4 100 Lead Free Brass Gray Iron Steel Polysulfone Buna-N 10
† Steel and gray iron components are zinc plated
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.
UNION TAIL PIECE ADAPTER † BOLT & NUTS † INSULATOR GASKET A B
3
⁄4 171 41⁄2 114 16 7
1
⁄8 257 43⁄4 121 34 15.4
*The wetted surface of this product contacted by consumable water
contains less than 0.25% of lead by weight.
USA: Tel: (978) 688-1811 • Fax: (978) 794-1848 • www.watts.com
Canada: Tel: (905) 332-4090 • Fax: (905) 332-7068 • www.watts.ca
ES-LF3100 1325 © 2013 Watts
A Watts Water Technologies Company
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