Zurn Wilkins 112-950XLT 1-1/2" Double Check Backflow Assembly - 112-950XLT
The Wilkins 112-950XLT 1-1/2" 950XLT Double Check Backflow Assembly delivers reliable backflow protection for low-health-hazard and standard irrigation or service-line applications. Designed for straightforward maintenance, this top-access assembly is lead-free and built for long service life in below-grade or standard valve box installations.
Refer to the supplied specification, installation, freeze-protection, and repair documents for detailed dimensions, service parts, and maintenance instructions. Annual inspection and testing by licensed personnel is recommended to ensure continued code-compliant operation.
Features
-
Durable construction: Cast bronze main body and cast bronze access covers (ASTM B584) for corrosion resistance and long-term durability.
-
Engineered internals: Stainless steel internal components with FDA-approved elastomers and Noryl polymers for dependable sealing and performance.
-
Performance ratings: Rated to 175 psi working pressure and 180°F maximum temperature; hydrostatic test to 350 psi.
-
Connections & dimensions: 1-1/2" female threaded (FNPT) end connections; overall length approximately 20-5/16" for standard installations.
-
Service & testing: Includes two full-port resilient-seated shut-off ball valves and four resilient-seated test cocks; top-access covers simplify testing and repairs.
-
Approvals & compliance: Certified lead-free and meets common industry approvals where applicable, including ASSE 1015, cUPC and CSA listings; consult local codes for installation requirements.
What our Experts Think
-
Reliable double-check protection: Prevents both back-siphonage and backpressure in non-health-hazard applications such as irrigation and service lines.
-
Top-access maintenance design: Allows fast servicing of internal check components without removing the full assembly, reducing downtime and labor.
-
Lead-free compliant construction: Built for modern potable water standards and approved for safe use in drinking water systems.
-
Durable bronze body: Cast bronze construction with corrosion-resistant internals for long-term reliability in outdoor or below-grade installations.
-
Installer-friendly sizing (1-1/2"): Ideal for irrigation mains, commercial service lines, and mid-size distribution systems.
-
Standard performance ratings: Designed for typical backflow service pressures up to ~175 PSI with high hydrostatic test capacity.
Q&A
Q: What is the Zurn Wilkins 112-950XLT used for?
A: A 1-1/2" lead-free double check valve assembly (DCVA) designed to protect potable water systems from low-hazard contamination caused by backpressure or backsiphonage in non-health-hazard applications.
Q: Is it approved for drinking water systems?
A: Yes. It is lead-free compliant and typically certified to NSF/ANSI 61 and ASSE 1015 standards for potable water protection in non-health-hazard use cases.
Q: What type of backflow protection does it provide?
A: Double check valve protection (two spring-loaded check assemblies) that blocks reverse flow and helps prevent contaminated water from entering the clean supply line.
Q: What applications is it used for?
A: Low-hazard systems such as irrigation, fire sprinkler lines, and commercial water service where RPZ-level protection is not required.
Q: What are its key construction features?
A: Cast bronze body with corrosion-resistant stainless steel internals, top-access design for easier maintenance, and test cocks for field testing.
Q: What are its pressure and temperature ratings?
A: Typically rated up to 175 PSI working pressure and about 180°F maximum operating temperature.
Q: Where is it commonly installed?
A: Below-grade or valve box installations in irrigation and service-line systems where reliable, low-hazard backflow prevention is required.
Maintenance Tips
Damage 
Loss 
Theft 
