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Wilkins 420XL Pressure Vacuum Breaker Assembly with Integral Anti-Freeze Relief Valve - 1"

Wilkins 420XL Pressure Vacuum Breaker Assembly with Integral Anti-Freeze Relief Valve - 1"
 
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SKU
420XL
Retail price:
$205.60
Our price:
$104.99
 
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Wilkins 420XL Pressure Vacuum Breaker Assembly with Integral Anti-Freeze Relief Valve - 1"

Designed for installation on potable water lines to protect against backsiphonage of contaminated water into the potable water supply. Supplied with an integral anti-freeze relief valve to reduce the risk of valve damage under intermittent, non-seasonal freezing conditions. Designed for use under continuous pressure. Assembly shall provide protection where a potential health hazard exists.

FEATURES

  • Maximum working water pressure 175 PSI
  • Maximum working water temperature 140°F
  • Hydrostatic test pressure 350 PSI
  • Threaded connections ANSI B1.20.1

MATERIALS

  • Main valve body - Low Lead Cast Bronze ASTM B 584
  • Elastomers - Silicone (FDA approved) Buna Nitrile (NSF approved)
  • Polymers - Polypropylene (FDA approved) Delrin™ (NSF Listed) Noryl™ (NSF Listed)
  • Springs - Stainless steel, 300 series 

STANDARDS COMPLIANCE

  • ASSE ® Listed 1020
  • IAPMO® Listed
  • CSA ® Certified
  • Approved by the Foundation for Cross-Connection Control and Hydraulic Research at the University of Southern California
  • Certified to NSF/ANSI 372* by IAPMO R&T  *(0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)

420 Series Information
(PDF: 97 KB)

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