Product Overview

For Non-Health Applications
ES-BBFP
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Approval
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Approval
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Series BBFP
Dual Check Valve with
Intermediate Atmospheric Vent
Sizes:
1
⁄2" (15mm),
3
⁄4" (20mm)
Series BBFP is specially made for smaller supply lines and ide-
ally suited for laboratory equipment, processing tanks, sterilizers,
dairy equipment and similar applications. It is particularly recom-
mended for boiler feed lines to prevent backflow when supply
pressure falls below system pressure.
Series BBFP is suitable for use on hot or cold water and can
be used under continuous pressure. It features a primary check
valve utilizing a rubber disc seating against a mating rubber part
to ensure tight closing. A secondary check valve utilizes a rubber
disc-to-metal seating. In the event of fouling of the downstream
check valve, leakage would be vented to atmosphere through
the vent port thereby safeguarding the potable water system.
Construction is brass body with stainless steel working parts,
integral strainer and durable rubber discs. Female union inlet
and outlet connections. Sizes
1
⁄2" (15mm) and
3
⁄4" (20mm). Drain
is
1
⁄2" (15mm) thread connection.
Features
• Trueline-sizedconstructionallowsthecheckmodulesto
open further allowing dirt and debris to pass more freely
reducing check fouling
• Stainlesssteelinternalparts
• Maximumflowatlowpressuredrop
• Furnishedwithunionconnectionstofacilitateremovaland
replacement for maintenance
• Compactforeconomycombinedwithperformance
• Designsimplicityforeasymaintenance
• Canbeinstalledverticallyorhorizontally
Specifications
For Backflow Preventers with Atmospheric vents
A Dual Check Valve with Atmospheric Vent shall be installed at
referenced cross-connections. Valve shall feature stainless steel
and rubber internals protected by an integral strainer. Primary
check shall be rubber to rubber seated, backed by the secondary
checkwithrubbertometalseating.ThedeviceshallbeASSEap-
proved under Std. 1012 and shall be a Watts Series BBFP.
Available Models
Suffix:
S – for
1
⁄2" (15mm) union end solder connections.
SC – for satin chrome finish
LU – less union
BBFP
May also be installed vertically
Union outlet
Secondary
check valve
Rugged mesh
stainless strainer screen
Primary
check valve
Vent and drain
connections
Brass body construction and stainless working parts throughout
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.
NOTICE
Inquire with governing authorities for local installation requirements
Theinformationcontainedhereinisnotintendedtoreplacethe
full product installation and safety information available or the
experienceofatrainedproductinstaller.Youarerequiredto
thoroughly read all installation instructions and product safety
information before beginning the installation of this product.
NOTICE