Product Overview

For Health Hazard Applications
ES-LF009
Series LF009
Reduced Pressure Zone Assemblies
Sizes:
1
⁄4" – 3" (8 – 80mm)
Series LF009 Reduced Pressure Zone Assemblies are designed to
protect potable water supplies in accordance with national plumb-
ing codes and water authority requirements. This series can be
used in a variety of installations, including the prevention of health
hazard cross-connections in piping systems or for containment at
the service line entrance.The LF009 features Lead Free* construc-
tion to comply with Lead Free* installation requirements.
This series features two in-line, independent check valves, cap-
tured springs and replaceable check seats with an intermediate
relief valve. Its compact modular design facilitates easy mainte-
nance and assembly access. Sizes
1
⁄4" – 1" (8 – 25mm) shutoffs
have tee handles.
Features
• Single access cover and modular check construction
for ease of maintenance
• Top entry - all internals immediately accessible
• Captured springs for safe maintenance
• Internal relief valve for reduced installation clearances
• Replaceable seats for economical repair
• Lead Free* bronze body construction for durability
1
⁄4" – 2" (8 – 50mm)
• Fused epoxy coated cast iron body 2
1
⁄2" and 3" (65 and 80mm)
• Ball valve test cocks — screwdriver slotted
1
⁄4" – 2" (8 – 50mm)
• Large body passages provides low pressure drop
• Compact, space saving design
• No special tools required for servicing
Specifications
A Reduced Pressure Zone Assembly shall be installed at each
potential health hazard location to prevent backflow due to back-
siphonage and/or backpressure. The assembly shall consist of an
internal pressure differential relief valve located in a zone between
two positive seating check modules with captured springs and silicone
seat discs. Seats and seat discs shall be replaceable in both check
modules and the relief valve. There shall be no threads or screws in
the waterway exposed to line fluids. Service of all internal compo-
nents shall be through a single access cover secured with stainless
steel bolts. Body and shutoffs shall be constructed using
Lead Free*
bronze materials. Lead Free* reduced pressure zone assembly shall
comply with state codes and standards, where applicable, requiring
reduced lead content.
The assembly shall also include two resilient seated isolation valves,
four resilient seated test cocks and an air gap drain fitting. The
assembly shall meet the requirements of: USC Manual 8th Edition†;
ASSE Std. 1013; AWWA Std. C511; CSA B64.4. Shall be a Watts
Series LF009.
1
⁄2" (15mm) LF009QT
Test Cock No. 3
Test Cock No. 4
R.P. Zone
Water Outlet
Test Cock
No. 2
First Check
Module
Assembly
Second
Check
Module
Assembly
Relief Valve Assembly
Ball Type
Test Cocks
IMPORTANT: INQUIRE WITH GOVERNING AUTHORITIES
FOR LOCAL INSTALLATION REQUIREMENTS
Now Available
WattsBox Insulated Enclosures.
For more information, send for literature ES-WB.
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.
LEAD FREE
*
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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†Does not indicate approval status. Refer to Page 2 for approved
sizes & models.
*The wetted surface of this product contacted by consumable
water contains less than one quarter of one percent (0.25%) of
lead by weight.