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Febco 710 Series 1-1/4 in AVB bronze unit showing female NPT connections and poppet assembly.

Febco 710 Series 1-1/4" Atmospheric Vacuum Breaker (AVB)

Brand: Febco
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$405.43
$304.07
SKU 710FFEB

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The Febco 710 Series 1-1/4 inch Atmospheric Vacuum Breaker (AVB) protects potable water systems from backsiphonage. Built with a bronze body and lightweight plastic poppets, this AVB is designed for non-continuous pressure applications where positive vacuum protection is required.

  • Bronze body and bonnet for corrosion resistance and long service life.
  • Lightweight, serviceable plastic poppets with resilient rubber discs for positive closure.
  • Female NPT inlet and outlet - easy threaded installation on 1-1/4 in. fittings.
  • Maximum working pressure 150 psi (10.3 bar); recommended water temperature 32 to 110 F (0 to 43 C).
  • Internal parts are serviceable in line from the top of the unit; repair kits are available for poppets and bonnets.

Ideal for hose bibs, turf irrigation, chemical vats, X-ray tanks, and laboratory sinks. Refer to the product specification sheet and installation instructions for approvals, dimensions, and service procedures.

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Frequently Asked Questions

What applications is the Febco 710 AVB best suited for?
For hose bibs, turf irrigation, chemical vats, X-ray tanks and laboratory sinks. Use only in non-continuous pressure applications.
How should the 710 Series AVB be installed and positioned?
Install on the discharge side of the last shutoff valve using female NPT threaded fittings. Do not use under continuous pressure.
Are replacement parts or repair kits available for the 710 AVB?
Yes. Poppet and bonnet repair kits are available; internal parts are serviceable in line from the top of the unit.