Description
Zurn Wilkins 4″ 375ASTOSY RPZ Backflow Preventer | Stainless Steel OS&Y
Product Overview:
The Zurn Wilkins 4″ 375ASTOSY RPZ Valve safeguards larger water systems from contamination by delivering trusted backflow protection. Ideal for schools, facilities, and industrial buildings, this model features a durable stainless steel body, accessible internal valves, and lead-free compliance.
Features & Benefits:
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Mid-to-large capacity system compatibility
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High-performance flow in low-pressure environments
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Non-corrosive materials for long-term reliability
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Short lay length for retrofit installations
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Certified for lead-free potable systems
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Easy access for field maintenance
Specifications:
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Size: 4″
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Working Pressure: 175 PSI
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Max Temperature: 140°F
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Test Pressure: 350 PSI
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End Types: Grooved or Flanged
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Certifications: ASSE 1013, AWWA, CSA, FM, UL, NSF 372
Installation Tips:
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Install between 12″–30″ height with drainage access
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Maintain clearances for easy testing
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Follow manufacturer and local plumbing code guidelines
FAQs:
Can this RPZ be used in commercial kitchens?
Yes, it’s ideal for food service, healthcare, and similar settings.
Is this model approved for vertical setups?
Yes, both horizontal and vertical configurations are supported.
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