Zurn Wilkins 950XLT 1" Top-Access Double-Check Valve Assembly - 1-950XLT
The Wilkins 950XLT 1" Top-Access Double-Check Valve Assembly is a durable, serviceable backflow preventer designed for low-hazard irrigation and non-potable water applications. Its compact top-access design allows testing and maintenance while fitting inside standard meter boxes, making it ideal for below-grade installations.
Designed to protect potable systems from backpressure and backsiphonage, the 950XLT offers long-term reliability with replaceable internals to reduce lifecycle costs. Its compact footprint and corrosion-resistant materials make it well suited for meter box installations where easy access for annual testing is required. For complete dimensions, installation instructions and parts lists, refer to the product specification sheet included in the product documents. Routine maintenance is limited to periodic testing and replacement of worn seats or seals; use only manufacturer-approved replacement parts and follow local codes for backflow device testing and certification.
Features
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Size & connections: 1" FNPT x FNPT connections for standard threaded piping.
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Robust construction: Cast bronze main body and cast bronze access covers for corrosion resistance.
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Internal components: Stainless-steel internals and springs with replaceable seats and silicone or Buna-N seal rings.
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Operating limits: Maximum working pressure 175 PSI and maximum working temperature 180°F; hydrostatic test 350 PSI.
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Serviceability: Top-access check covers and full-port ball valves simplify testing, repair, and winterization.
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Approvals: ASSE 1015, IAPMO, CSA and AWWA C510 listings; approved by the USC Foundation for Cross-Connection Control and Hydraulic Research.
What our Experts Think
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Reliable low-hazard protection: The Zurn Wilkins 1" 950XLT Double Check Valve Assembly (1-950XLT) is designed to prevent backsiphonage and backpressure in non-health-hazard potable and irrigation systems.
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Top-access maintenance design: Features top-access check covers, allowing servicing of internal components without removing the entire valve from the line—reducing downtime and labor.
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Built for long service life: Constructed with a cast bronze body, stainless steel springs, and corrosion-resistant internal hardware for durability in outdoor and below-grade installations.
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Compact, installation-friendly layout: Designed to fit standard valve boxes, making it ideal for residential and light commercial irrigation systems where space is limited.
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Serviceable internals: Includes replaceable seats and seal rings, helping extend product life and reduce long-term maintenance costs.
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Code-compliant performance: Meets common industry standards including ASSE 1015, CSA, cUPC, and AWWA compliance, supporting approved installations in most jurisdictions.
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Pro-grade reliability: Rated for up to 175 PSI working pressure and 180°F maximum temperature, making it suitable for typical municipal supply conditions.
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