Description
Zurn Wilkins 8-375ASTOSY 8″ RPZ Backflow Preventer | Stainless Steel OS&Y.
Product Overview:
The Zurn Wilkins 8-375ASTOSY Reduced Pressure Principle Assembly (RPZ) is a premium backflow preventer designed to safeguard potable water systems from contamination due to backsiphonage or backpressure. Built with a robust 304L stainless steel body and OS&Y gate valves, this 8″ model ensures durable, lead-free performance in critical applications. It’s ideal for commercial and industrial settings where reliability and safety are paramount.
Features & Benefits:
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Compact Design: Short lay length enables space-saving installation in tight areas.
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High-Performance Flow: Engineered for improved flow rates, perfect for low-pressure environments.
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Corrosion Resistant: Stainless steel body resists corrosion, extending product life.
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Tool-Free Maintenance: Check valves and relief valve accessible without removing from line.
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Lead-Free Certified: Complies with NSF/ANSI 372 standards for potable water systems.
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Versatile Installation: Horizontal or vertical orientation supported with OS&Y gate valves.
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Retrofit Friendly: Compatible with Model 300ASTR for easy upgrades or replacements.
Specifications:
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Size: 8”
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Body & Cover Material: 304L Stainless Steel
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Internal Components: Stainless steel, NORYL™ plastic
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Seals: EPDM, FDA approved
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O-Rings: Buna N (FDA approved)
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Working Pressure: 175 PSI
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Temperature Range: Up to 140°F
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Test Pressure: 350 PSI
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End Connections: Grooved (AWWA C606) and Flanged (ANSI B16.1 Class 125)
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Certifications: ASSE® 1013, AWWA C511/C550, FM®, UL®, CSA®, NSF®, IAPMO®
Installation Tips:
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Install between 12″–30″ above the ground to ensure accessibility and drainage.
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Maintain sufficient side clearance for easy testing and maintenance.
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Ensure no part of the assembly is submerged to meet safety standards.
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Use grooved or flanged connections based on your piping system.
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Follow all local code requirements during installation.
FAQs:
Q: Is this assembly lead-free?
A: Yes, it’s certified to NSF/ANSI 372 standards with ≤0.25% weighted average lead content.
Q: Can it be installed vertically?
A: Yes, this model supports both horizontal and vertical installations.
Q: What materials are used inside the valve?
A: It includes stainless steel and NORYL™ internals with FDA-approved EPDM and Buna N seals.
Q: Do I need special tools to maintain it?
A: No, the checks and relief valve can be accessed without removing the unit from the pipeline.
Q: What’s the max pressure and temperature rating?
A: It supports up to 175 PSI and temperatures as high as 140°F.
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