Wilkins 34-720A Pressure Vacuum Breaker Assembly - 3/4"

Wilkins 34-720A Pressure Vacuum Breaker Assembly - 3/4" icon_image_enlarge.png
  • Model #: 34-720A
  • Part #: 158894
  • Manufacturer: Wilkins

This is a genuine Wilkins 34-720A Pressure Vacuum Breaker Assembly – 3/4”.

  • 3/4” FNPT Ball Valves

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Designed for installation on potable water lines to protect against backsiphonage of contaminated water into the potable water supply. Assembly shall provide protection where a potential health hazard exists.


  • ASSE ® Listed 1020
  • IAPMO® Listed
  • CSA ® Certified
  • Approved by the Foundation for Cross-Connection
  • Control and Hydraulic Research at the University of Southern California


  • Main valve body: Cast Bronze ASTM B584
  • Fasteners: Stainless Steel, 300 Series
  • Elastomers:
    • Silicone (FDA approved)
    • Buna Nitrile (FDA approved)
  • Polymers:
    • Polypropylene (FDA approved)
    • Delrin® (FDA approved)
  • Springs: Stainless Steel, 300 series


  • Maximum working water pressure 150 PSI
  • Maximum working water temperature 110°F
  • Hydrostatic test pressure 300 PSI
  • End connections threaded ANSI B1.20.1
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Additional Information

List Description
  • 3/4” FNPT Ball Valves
Part #




Model #


Wilkins 34-720A Pressure Vacuum Breaker Assembly - 3/4"

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