Zurn Wilkins 950XLT2 1" FNPT Top-Access Double Check Valve - 1-950XLT2
The Wilkins 950XLT2 1" FNPT Double Check Valve Assembly is a testable, lead‑free backflow preventer designed for low‑hazard potable water systems. Its top‑access check covers simplify service and in-line maintenance, while the compact lay length fits standard valve boxes for below‑grade installation.
This assembly protects potable lines from backsiphonage and backpressure in applications where a double‑check is appropriate. Corrosion‑resistant stainless fasteners and springs, full‑port ball valves and protected test cock plugs improve durability and winterization. Download the specification sheet and installation manual linked on the product page for dimensional drawings, parts breakdown and testing procedures.
Features
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Lead‑free bronze body: ASTM B584 cast bronze construction for corrosion resistance and long service life.
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Top access design: Two top‑mounted access covers allow quick inspection and repair without removing the unit from the line.
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Serviceable internals: Replaceable Noryl
Features
seats and silicone seal rings reduce downtime and maintenance cost.
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Performance ratings: 175 psi maximum working pressure and temperature rating up to 180°F; hydrostatic test to 350 psi.
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Connections & lay length: 1" FNPT female threaded inlet/outlet with compact lay length to fit standard meter/valve boxes.
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Certifications: ASSE 1015, IAPMO/cUPC, AWWA C510, CSA/NSF listings where applicable — approved for potable systems.
What our Experts Think
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Reliable 1" FNPT top-access double check valve assembly designed for non-health hazard backflow prevention.
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Compact lead-free bronze construction ensures durability, corrosion resistance, and long service life.
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Features top-access design for simplified in-line maintenance and faster servicing.
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Provides effective protection against backpressure and backsiphonage in potable water systems.
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Engineered for residential, commercial, and light industrial applications requiring code-compliant backflow protection.
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Includes resilient seated check modules for dependable sealing performance and reduced leakage risk.
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Designed for low head loss operation, helping maintain system efficiency.
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Built to meet recognized industry standards for safety and potable water compliance.
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A trusted choice for professionals seeking a service-friendly and durable backflow prevention solution.
Q&A
Maintenance Tips
- Inspect regularly for leaks, corrosion, or unusual pressure drops.
- Test annually to ensure proper double-check backflow prevention performance.
- Use top-access feature for convenient inspection and servicing without full disassembly.
- Flush the system periodically to reduce sediment and debris buildup.
- Clean or replace check assemblies if sticking or reduced flow is observed.
- Replace worn seals, O-rings, or internal components with approved repair kits as needed.
- Protect from freezing and keep accessible for routine maintenance and testing
Damage 
Loss 
Theft 
