Zurn Wilkins 1-1/2" 350 DCVA Double Check Backflow Preventer.
Product Overview
The Zurn Wilkins 1-1/2" Model 350 Double Check Valve Assembly is designed to safeguard water systems against low-hazard contamination in non-potable applications. Built with a reinforced nylon body and stainless-steel hardware, this unit offers reliable protection and long service life. The EZSwap™ pressure vessel allows for quick flushing, winterization, and off-line maintenance, keeping systems running efficiently.
Features & Benefits
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Backflow Prevention – Protects against backsiphonage and backpressure in low-hazard applications.
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EZSwap™ Pressure Vessel – Provides easy access for maintenance and winterization.
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Durable Materials – Nylon housing and stainless-steel hardware resist corrosion and wear.
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Fast Maintenance – Checks accessible without removing valve from pipeline.
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Industry Certifications – ASSE®, CSA®, IAPMO®, and AWWA approved.
Specifications
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Model: Zurn Wilkins 350
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Size: 1-1/2"
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Body Material: Reinforced Nylon
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Elastomers: FDA-approved silicone & Buna-N
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Springs & Internals: Stainless Steel / Delrin
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Max Working Pressure: 175 PSI
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Max Temperature: 180°F
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Hydrostatic Test Pressure: 350 PSI
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End Connection: Threaded ANSI B1.20.1
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Weight: 20 lbs (with ball valves)
Installation Tips
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Install 12"–30" above ground with proper drainage.
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Provide side clearance for testing and maintenance.
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If below grade, ensure proper drainage to prevent flooding.
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Use winterization fittings to avoid freeze damage.
FAQs
Q: Is the 1-1/2" size used in residential or commercial settings?
Primarily commercial and light industrial, but may also be used in larger residential irrigation systems.
Q: Can it handle high pressure?
Yes, rated up to 175 PSI with hydrostatic testing to 350 PSI.
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