Watts LF4001E User Manual
Series lf4001e, Lead free, Dielectric unions

For Residential and Commercial Applications
ES-LF4001E
Job Name –––––––––––––––––––––––––––––––––––––––––––
Contractor ––––––––––––––––––––––––––––––––––––––––––––
Job Location –––––––––––––––––––––––––––––––––––––––––
Approval –––––––––––––––––––––––––––––––––––––––––––––
Engineer –––––––––––––––––––––––––––––––––––––––––––––
Contractor’s P.O. No. ––––––––––––––––––––––––––––––––––
Approval –––––––––––––––––––––––––––––––––––––––––––––
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Series LF4001E
Dielectric Unions
Sizes
1
⁄
2
" – 2"
Series LF4001E Dielectric Unions feature a female iron pipe
thread to solder connection. Compliant to American Society
of Sanitary Engineers ASSE Standard 1079-2005. These
unions are designed to be installed between pipe made from
dissimilar metals to prevent accelerated corrosion and deterio-
ration in the piping system due to galvanic and stray current.
Features
• Female iron pipe thread to solder connection
• Designed and manufactured to the highest quality standards
• Individually factory certified to withstand a minimum of 600
volts on a dry line with no flashover
• Rated to 180°F (82°C) at 250psi (17.2 bar)
Specifications
A dielectric union shall be installed where indicated on the
plans. The union shall feature a female iron pipe thread to
solder connection. The union shall be a Watts Series LF4001E
compliant with ASSE Standard #1079-2005.
Materials — Dimensions — Weights
Standards
Complies with Buy America Act (BAA 1933) and The American
Recovery and Reinvestment Act (ARRA 2009).
Meets American Society of Sanitary Engineers
ASSE Standard 1079-2005.
Pressure — Temperature
Maximum Pressure: 250psi (17.2 bar)
Maximum Temperature: 180°F (82°C)
LF4001E
B
A
LEAD FREE
*
*The wetted surface of this product contacted by consumable water
contains less than 0.25% of lead by weight.
ES-LF4001E 1325
© 2013 Watts
USA: Tel: (978) 688-1811 • Fax: (978) 794-1848 • www.watts.com
Canada: Tel: (905) 332-4090 • Fax: (905) 332-7068 • www.watts.ca
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.
A Watts Water Technologies Company
Size
MATeRiALS
DiMeNSiONS
WeiGHT
TAIL PIECE
ADAPTER †
NUT †
INSULATOR
GASKET
A
B
in.
in.
mm
in.
mm
oz.
gm.
1
⁄
2
Lead Free Brass
Steel
Steel
Polysulfone
EPDM
1
5
⁄
8
41
1
3
⁄
4
44
4.8
136
3
⁄
4
Lead Free Brass
Steel
Steel
Polysulfone
EPDM
1
7
⁄
8
48
1
7
⁄
8
48
6.4
181
1
Lead Free Brass
Steel
Steel
Polysulfone
EPDM
2
3
⁄
16
55
2
1
⁄
8
54
8.8
249
1
1
⁄
4
Lead Free Brass
Steel
Steel
Polysulfone
EPDM
2
5
⁄
8
67
2
3
⁄
8
60
12.8
363
1
1
⁄
2
Lead Free Brass
Steel
Malleable Iron
Polysulfone
EPDM
3
76
2
7
⁄
16
62
20.8
590
2
Lead Free Brass
Steel
Malleable Iron
Polysulfone
EPDM
3
3
⁄
4
95
3
76
37.6
1066
† Steel and malleable iron components are zinc plated