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Lead Free* Spill Resistant Atmospheric Vacuum Breakers

Series LF289 Spill Resistant Atmospheric Vacuum Breakers prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage. They have a Lead Free* copper silicon alloy (LF289) body, silicone rubber check disc, stainless steel springs, a lightweight plastic disc float that minimizes deposits and scaling, a spring-loaded atmospheric vent with O-ring, and a spill-resistant diaphragm seal. Series LF289 has a compact, space-saving design, and is ideal for health hazard applications such as on chemical dispensers or factory machine equipment. Maximum Pressure:150psi (10.34 bar), Minimum Pressure: 8psi (.55 bar).


  • Spill-resistant diaphragm seal
  • Compact design saves space
  • Spring-loaded vent
  • Vent has O-ring for reliable operation

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Approval Information

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