Submittal Sheet

Series LF008PCQT
Health Hazard, Anti-Siphon,
Spill-Resistant Backflow Preventer
Sizes:
3
⁄8",
1
⁄2",
3
⁄4" and 1" (10, 15, 20, 25mm)
Series LF008PCQT is designed for indoor point-of-use applica-
tions to prevent backsiphonage of contaminated water back
into the potable water supply. Separation of the water supply
from the air inlet is accomplished by means of a diaphragm
seal. This feature protects against any spillage during start-up
or operation. The LF008PCQT features Lead Free* construc-
tion to comply with Lead Free* installation requirements.
Features
• Standardly supplied with internal polymer coating
• Standardly supplied with Tee handles
• Available less Tee handle with stem wrench flats. For use
where space is limited
• Available in left-handed or right-handed outlet
• Spill-resistant design for indoor use
• Affordable design
• Modular cartridge for ease of service
• Vent uses an O-ring for reliable operation
• Lead Free* Bronze body for durability
• Compact space saving design
• Satin chrome finish available
• Available with strainer
Installation
The LF008PCQT is designed to be installed at the point-
of-use. When factory installed deck/machine mounted on
machines or equipment, the critical level of the LF008PCQT
shall be not less than 1" (25mm) above the flood rim. If field
applied for general plumbing applications, the critical level of
the LF008PCQT shall be a minimum of 6" (150mm) above the
flood rim.
Specifications
A spill-resistant vacuum breaker (SVB) shall be installed, in
accordance with the manufacturer’s instructions, as noted
on the plans. The valve shall consist of a one-piece modular
check and float assembly made of engineered thermoplas-
tic and housed in a Lead Free* bronze body. Springs shall
be stainless steel. The Health Hazard, Anti-Siphon, Spill
Resistant Backflow Preventer shall be constructed using Lead
Free* materials. Lead Free* Health Hazard, Anti-Siphon, Spill
Resistant Backflow Preventer shall comply with state codes
and standards, where applicable, requiring reduced lead con-
tent. The valve shall be constructed with a molded diaphragm
separating the air inlet from the potable water supply to pre-
vent spillage. The valve shall be a Watts Series LF008PCQT.
For Health Hazard and Continuous Pressure Applications
ES-LF008PCQT
LF008PCQT
LF008PCQT-L (Left Handed)
LF008PCQT (Right Handed)
FOR INDOOR USE!
Hood Screws
(2 Required)
Vent
Spring
Air Bleed Screw
Bleed O-ring
(not shown)
Test Cock
Shutoff
Valve Assembly
(2 Required)
Hood
Bonnet
O-ring
Vent
O-ring
Body
Retainer
Check
Assembly
Size:
3
⁄8",
1
⁄2" (10, 15mm)
Hood
Bonnet
O-ring
Vent
O-ring
Body
Retainer
Check
Assembly
Hood Screw
Vent
Spring
Air Bleed Screw
Bleed O-ring
(not shown)
Test Cock
Shutoff
Valve Assembly
(2 Required)
Size:
3
⁄4", 1" (20, 25mm)
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
*
* The wetted surface of this product contacted by consumable
water contains less than 0.25% of lead by weight.
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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