Description
Zurn Wilkins 3″ 350AST Double Check Valve Assembly | Stainless Steel Backflow Preventer with NRS Gate Valves.
Product Overview:
The Zurn Wilkins 3″ 350AST DCVA is a compact, heavy-duty backflow preventer designed to protect potable water systems from back pressure and back siphonage in non-health hazard applications. Featuring a 304L stainless steel body and non-rising stem gate valves, this unit delivers excellent corrosion resistance and long-term reliability for commercial and light industrial installations.
Features & Benefits:
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Reliable backflow protection for non-health hazard potable water lines
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Stainless steel body resists corrosion and scaling
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Full-port non-rising stem (NRS) gate valves offer smooth shutoff
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Short lay-length ideal for confined installations
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In-line access to check valves reduces maintenance time
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Certified lead-free and potable water compliant
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Approved for vertical and horizontal installations
Specifications:
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Size: 3″
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Body: 304L Stainless Steel
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Internal Components: Stainless Steel, NORYL™, EPDM, Buna-N
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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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Connections: Grooved or Flanged
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Certifications: ASSE 1015, NSF 61/372, FM®, UL®, CSA®, IAPMO®, USC Approved
Installation Tips:
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Install 12–30″ above finished grade with nearby drainage
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Maintain access clearance for test ports and valve servicing
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Avoid areas prone to flooding or submersion
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Compliant with both horizontal and vertical configurations
FAQs:
Q: Is this certified for potable water use?
Yes, it meets NSF/ANSI 61 and 372 standards.
Q: Can this model be used for backflow retrofits?
Absolutely, it’s compatible with the Zurn 300ASTR series.
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