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产品介绍
Zurn 1-420XL
Zurn 1-420XL
Zurn
Application This Lead Free Wilkins Series 420XL pressure vacuum breaker assembly 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. Designed for use under continuous pressure. Assembly shall provide protection where a potential health hazard exists. 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 Materials Main valve body: Cast Bronze ASTM B 584 Elastomers: Silicone (FDA Approved), Buna Nitrile (NSF Listed) Polymers: Polypropylene (FDA Approved), Delrin (NSF Listed), Noryl (NSF Listed) Springs: Stainless Steel, 300 Series
Size: 1" Max Pressure (PSI): 175 175 Max Temp (F): 140°F Hydrostatic Test Pressure: 350 PSI Application: Plumbing Material: Cast Bronze Height: 7-15/16" Features: Lead Free Connection Type: Female Threaded
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