Description
Pressure Vacuum Breaker Assembly-420-1″
The Pressure Vacuum Breaker Assembly-420-1″, by Wilkins, is designed for installation on potable water lines to protect against back siphonage 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.
This pressure vacuum breaker assembly provides protection where a potential health hazard exist, and is designed for use under continuous pressure. It is also approved by the Foundation for Cross Connection, Control and Hydraulic Research at the University of Southern California. It is CSA® Certified, IAPMO®.
• Designed for installation on potable water lines
• Designed for use under continuous pressure
• Protects against backsiphonage of contaminated water into the potable water supply
• Main assembly is bronze (ASTM B 584)
• Hydrostatic test pressure 350 PSI
• Maximum working water pressure 175 PSI
• Maximum working water temperature 140°F
• Threaded connections ANSI B1.20.1
Standard Compliance
• Approved by the Foundation for Cross Connection
• Control and Hydraulic Research at the University of Southern California
• CSA® Certified
• IAPMO® Listed
• ASSE® Listed 1020
