Zurn Wilkins 34-975XLUS 3/4 in Reduced Pressure Backflow Assembly, Bronze - 34-975XLUS
The Wilkins 34-975XLUS Reduced Pressure Principle Backflow Assembly delivers high-hazard protection for water systems. Designed for 3/4 in lines, this wye-pattern backflow preventer features a cast bronze body and stainless steel internal components for corrosion resistance. Union ball valve shutoffs allow quick body removal for winterization or service. The assembly is ASSE listed and meets IAPMO, CSA and AWWA compliance for reliable performance.
Recommended for irrigation and commercial installations where dependable backflow protection is required. Refer to the product spec sheet and installation instructions before specifying or installing. Have the assembly commissioned and annually tested by a certified backflow tester.
Features
- Nominal size: 3/4 in; maximum operating pressure: 175 psi.
- Construction: cast bronze wye-pattern body, stainless steel internals, Buna-N and silicone seals.
- Features: union ball valve shutoffs for easy removal, wye-type strainer (975XLUS), and durable seats for long service life.
- Certifications & applications: ASSE listed; IAPMO and CSA certified; AWWA compliant. Ideal for irrigation, commercial, and high-hazard protection.
- Documentation: specification sheet, repair parts list, installation and freeze-protection instructions available for download.
What our Experts Think
Q&A
Q: What is the Zurn Wilkins 34-975XLUS 3/4 in Reduced Pressure Backflow Assembly, Bronze used for?
A: It provides high-level backflow protection in potable water systems where health hazards may exist, such as irrigation with fertilizers, commercial plumbing, and cross-connection risks.
Q: What type of device is the 34-975XLUS?
A: It is a Reduced Pressure Zone (RPZ) backflow preventer, designed for high-hazard applications requiring maximum protection.
Q: What does “XLUS” indicate?
A: It typically denotes lead-free bronze construction and compliance with U.S. potable water safety standards for RPZ assemblies.
Q: What are key features of this model?
A: Dual check valves, a differential relief valve, lead-free bronze body, compact 3/4" inline design, and serviceable components.
Q: Where is it commonly used?
A: Irrigation systems with chemical injection, commercial buildings, fire protection lines, and other high-risk water systems.
Q: Does it require testing and maintenance?
A: Yes, RPZ assemblies require regular certified testing and maintenance to ensure proper discharge and compliance with plumbing codes.
Maintenance Tips
- Inspect regularly for leaks, corrosion, and relief valve discharge activity.
- Test annually by a certified tester to ensure proper reduced pressure backflow protection and code compliance.
- Flush the assembly periodically to reduce sediment buildup in check valves and relief components.
- Clean strainers and internal parts to maintain consistent performance and flow.
- Replace worn seals, O-rings, or check assemblies with approved repair kits when needed.
- Maintain clear access for inspection and testing, and protect from freezing conditions.
Damage 
Loss 
Theft 
