Submittal Sheet

ES-F-710_715
Series 710, 715
Atmospheric Vacuum Breakers
Size:
1
⁄2" - 2" (15mm - 50mm)
LEAD FREE
*
For Non-Health Hazard Applications
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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FEBCO product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements,
please contact FEBCO Technical Service. FEBCO 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 FEBCO products previously or subsequently sold.
The FEBCO Series 710, 715 Atmospheric Vacuum Breakers are
designed for use in multiple water applications such as:
• Hose bibbs
• Chemical vats
• X-ray tanks
• Turf irrigation systems
• Laboratory sinks
Features
• Meets all specifications of ASSE
• Documented flow curves established by The Twining Labs, Inc.
• Simple service procedures.
• Light weight plastic poppets.
• Resilient rubber poppet discs designed for positive closure.
• Cold water applications.
• End Connections – NPT ANSI/ASME B1.20.1
Operation
FEBCO Series 710, 715 assures positive protection against back-
siphonage of impure water into the main supply in the event that
pressure loss causes vacuum conditions. A poppet seals the air
inlet when the unit is pressurized. When a backsiphonage occurs,
the poppet drops to allow air to enter the downstream piping.
At the same time the poppet shields the water inlet to prevent
foreign materials from entering the upstream piping. Restoration
of pressure (flow) lifts the poppet to seal the air inlet.
Specifications
Atmospheric Vacuum Breakers shall be installed on the discharge
side of the last shutoff valve, shall have all bronze bodies and
bonnets, and shall be of the non-spilling type. Vacuum breaker
shall be rated to 150psi (10.3 bar) working pressure and shall
withstand water temperatures of 32ºF to 110ºF (0ºC - 43ºC) for
the Series 710 (1" - 2")(25 - 50mm) and 32ºF to 180ºF(0ºC - 82ºC)
for the 715 (
1
⁄2" -
3
⁄4")(15-20mm).
Approvals – Standards
Typical Installation
An Atmospheric Vacuum Breaker may be used to protect a cross-
connection against backsiphonage, where the vacuum breaker
is not subjected to back pressures due to pumps or any other
conditions which may cause backpressure, no matter how slight.
It must be installed on the discharge side of the last shutoff valve.
Code requirements vary as to the height this vacuum breaker
must be installed above the highest overflow level but a minimum
of 6" (150mm) is required. The atmospheric vacuum breaker must
be installed with the air inlet in a level position.
NOTE: No valve of any type may be installed on the discharge side
of an atmospheric vacuum breaker.
Model 710/715
Flow
6" (150mm) minimum above
highest point of water.
(suggested)
NOTE: Unit cannot have any shutoff downstream of it.
715
1
⁄2" -
3
⁄4" (15-20mm)
1001 B64.1.1
710 1" - 2" (25-50mm)
It is illegal to use this product in any plumbing system providing
water for human consumption, such as drinking or dishwashing,
in the United States. Before installing standard material product,
consult your local water authority, building and plumbing codes.
WARNING
!