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Wilkins 950XLT 1-inch top-access double check valve assembly in cast bronze, FNPT x FNPT connections, shown.

Wilkins 950XLT 1" Top-Access Double-Check Valve Assembly

Brand: Zurn Industries, LLC
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$576.22
$432.16
SKU 1-950XLT

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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.

  • Size & connections: 1" FNPT x FNPT connections for standard threaded piping.
  • Robust construction: Cast bronze main body and cast bronze access covers for corrosion resistance.
  • Internal components: Stainless-steel internals and springs with replaceable seats and silicone or Buna-N seal rings.
  • Operating limits: Maximum working pressure 175 PSI and maximum working temperature 180°F; hydrostatic test 350 PSI.
  • Serviceability: Top-access check covers and full-port ball valves simplify testing, repair, and winterization.
  • Approvals: ASSE 1015, IAPMO, CSA and AWWA C510 listings; approved by the USC Foundation for Cross-Connection Control and Hydraulic Research.

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.

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Frequently Asked Questions

What are the pressure and temperature limits for this valve?
Maximum working pressure is 175 PSI and maximum working temperature is 180°F; hydrostatic test pressure is 350 PSI.
Is the 950XLT suitable for below-grade meter box installation?
Yes. The top-access design and compact footprint allow installation in standard meter boxes for below-grade applications.
What certifications and approvals does the 950XLT have?
Model 950XLT carries ASSE 1015, IAPMO and CSA listings and meets AWWA C510; approved by the USC Foundation for Cross-Connection Control.

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