Submittal Sheet
For Non-Health Hazard Applications
ES-LFN9
Series LFN9
Dual Check Vacuum Breakers
for In-Line Applications
Size
1
⁄4" and
3
⁄8" (8 and 10mm)
Series LFN9 Dual Check Vacuum Breakers for In-Line
Applications are used for continuous pressure, non-health
hazard, applications. These valves have NPT female inlet and
outlet connection and Lead Free* brass body construction. The
LFN9 features Lead Free* construction to comply with Lead
Free* installation requirements.
Models
LFN9C – same as LFN9 except comes with chrome body
Pressure-Temperature
Temperature Range: 33°F – 140°F (0.5°C – 60°C)
Maximum Working Pressure: 125psi (8.6 bar)
Applications
Series LFN9 should be installed on each parlor sink where a
hose is attached. This series is for use on continuous pressure
applications.
Standards
CSA B64.8
Open End,
only outlet on fixture
3
⁄8" Mixed
Water
Line
Drain
LFN9
Parlor Sinks
LFN9
Capacity
kPa psi
345 50
310 45
276 40
241 35
207 30
172 25
138 20
103 15
69 10
35 5
0 0
0 1 2 3 4 5 6 7 gpm
0 3.8 7.6 11 15 19 23 27 lpm
B
A
B1
Dimensions — Weights
MODEL SIZE (DN) DIMENSIONS WEIGHT
A B B
1
in. mm in. mm in. mm in. mm lbs. kgs.
LFN9C
1
⁄4 6 2
3
⁄8 60 1
1
⁄4 32 1 25 .38 .17
LFN9C
3
⁄8 10 2
3
⁄8 60 1
1
⁄4 32 1 25 .38 .17
LFN9
1
⁄4 6 2
3
⁄8 60 1
1
⁄4 32 1 25 .38 .17
LFN9
3
⁄8 10 2
3
⁄8 60 1
1
⁄4 32 1 25 .38 .17
1
⁄4"
3
⁄8"
Pressure Drop
Flow
Job Name
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Contractor
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Job Location
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Approval
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Engineer
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Contractor’s P.O. No.
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Approval
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Representative
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ES-LFN9 0940 © 2009 Watts
USA: 815 Chestnut St., No. Andover, MA 01845-6098; www.watts.com
Canada: 5435 North Service Rd., Burlington, ONT. L7L 5H7; www.wattscanada.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
LEAD FREE
*
*The wetted surface of this product contacted by
consumable water contains less than one quarter
of one percent (0.25%) of lead by weight.