Zurn Wilkins 2-350XL 2" Double Check Valve Assembly Backflow Preventer – Lead-Free
Product Overview
The Zurn Wilkins 2-350XL Double Check Valve Assembly (DCVA) provides dependable backflow prevention for potable water systems in commercial, residential, and industrial applications. Engineered to guard against both backsiphonage and backpressure, this 2-inch lead-free backflow valve ensures contaminated or polluted water does not enter the clean water supply.
Built with a cast bronze body, reinforced nylon housing, and corrosion-resistant stainless steel components, the 350XL series delivers durability and long-term reliability. The patented removable pressure vessel simplifies maintenance, while top-mounted test cocks allow for quick and accurate testing.
Features & Benefits
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Lead-free design compliant with safe drinking water regulations
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Patented removable pressure vessel for easier maintenance and service
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Top-mounted test cocks streamline testing and installation
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Available blow-out flush fitting reduces debris buildup
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Designed for domestic, irrigation, fire protection, and waterworks applications
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Compact design with threaded FNPT end connections for simple installation
Applications
The 2-350XL DCVA backflow preventer is ideal for protecting potable water systems in:
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Domestic water service lines
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Irrigation systems
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Fire protection systems
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Waterworks and commercial plumbing systems
Specifications
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Model: 2-350XL
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Size: 2 inch (available in 1/2" through 2")
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Body Material: Cast Bronze, ASTM B 584
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Housing: Reinforced Nylon
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Fasteners & Springs: Stainless Steel, 300 Series
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Elastomers: Silicone & Buna Nitrile, FDA approved
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Internals: Delrin, NSF Listed
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Ball Valves: Cast Bronze, ASTM B 584
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Maximum Working Pressure: 175 PSI
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Maximum Temperature: 180°F (82°C)
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Hydrostatic Test Pressure: 350 PSI
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Connections: Threaded ANSI B1.20.1 FNPT
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Compliance & Approvals:
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ASSE® Listed 1015
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IAPMO® Listed
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CSA® Certified B64.5
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AWWA Compliant C510
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USC FCCC&HR Approved
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UL® & C-UL® Classified (less shut-off valves)
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Installation Tips
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Install according to local plumbing and backflow prevention codes.
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Mount in a horizontal orientation unless otherwise specified.
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Ensure clearance for testing and maintenance access.
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Provide adequate drainage and protection from freezing conditions.
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Use only trained and certified professionals for installation and testing.
FAQs
Q: What does the 2-350XL protect against?
It prevents backsiphonage and backpressure of polluted water into potable supply lines.
Q: Is the 2-350XL lead-free?
Yes, it complies with NSF/ANSI 61 and lead-free laws, making it suitable for drinking water applications.
Q: Can this be used for irrigation or fire systems?
Yes, it is approved for domestic water, irrigation, fire protection, and waterworks applications.
Q: What makes maintenance easier on this model?
Its patented removable pressure vessel and top-mounted test cocks reduce service time and simplify inspections.
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