The Wilkins 1-950XLT2 is a top access double check valve assembly designed for potable water backflow protection against backsiphonage and backpressure.

Key Specifications:

• Size: 1 Inches
• Maximum Working Water Pressure: 175 PSI
• Maximum Working Water Temperature: 180°F
• Notable Certifications: ASSE 1015, cUPC, CSA B64.5
• End Connections: Threaded ANSI B1.20.1

Other Related Variants:

• 34-950XLT2: 3/4 Inches version
• 112-950XLT2: 1 1/2 Inches version
• 114-950XLT2: 1 1/4 Inches version
• 2-950XLT2: 2 Inches version

Materials:

• Low Lead Cast Bronze ASTM B 584 (main valve body and access covers)
• Stainless Steel, 300 Series (fasteners, springs, and ball valve handles)
• Silicone (elastomers)
• Buna Nitrile (elastomers)
• Noryl™ (polymers)
• Plastic (test cock cover)

Typical Installation:

Local codes shall govern installation requirements. To be installed in accordance with the manufacturer's instructions and the latest edition of the Uniform Plumbing Code. Unless otherwise specified, the assembly shall be mounted at a minimum of 12 inches (305mm) and a maximum of 30 inches (762mm) above adequate drains with sufficient side clearance for testing and maintenance. If installed below grade, be certain adequate drainage is provided to prevent the device from being submerged.

Standards Compliance:

ASSE Listed 1015; cUPC Listed; CSA Certified B64.5; AWWA Compliant C510; Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California (Horizontal installations only); NSF/ANSI/CAN 61 and 372

Features & Benefits:

• Top Access Design: The Zurn 1-950XLT2 allows maintenance from the top without removing the assembly from the line, saving time and labor costs.
• Lead-Free Compliance: Meets NSF/ANSI/CAN 61 and 372 standards with less than 0.25% weighted average lead content for safe potable water applications.
• Debris Protection: Test cock plugs protect against fouling caused by insects, dirt, and debris, ensuring reliable operation and testing.
• Durable Construction: Low lead cast bronze body with corrosion-resistant stainless steel internals and silicone elastomers provide long-lasting performance.

FAQ

Q: What is the difference between the Zurn 1-950XLT2 and other 950XLT2 models?

A: The 1-950XLT2 refers to the 1 Inches size. Related variants include 34-950XLT2 (3/4 Inches), 112-950XLT2 (1 1/4 Inches), 114-950XLT2 (1 1/2 Inches), and 2-950XLT2 (2 Inches).

Q: Can the Wilkins 1-950XLT2 be installed vertically?

A: Yes, the assembly is approved for both horizontal and vertical flow-up installations, except for the USC Foundation approval which applies to horizontal installations only.

Q: How do I maintain the 1-950XLT2 double check valve assembly?

A: The top access design allows you to service the check valves from the top without removing the assembly from the line. Repair kits (rubber only) are available as accessories.

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