Zurn Wilkins ZW1017XL Thermostatic Mixing Valve

Zurn Wilkins ZW1017XL Aqua-Gard® Thermostatic Mixing Valve.

Product Overview

The Zurn Wilkins ZW1017XL Aqua-Gard® Thermostatic Mixing Valve is designed to deliver safe, tempered water by blending hot and cold supplies at the source. Engineered for both residential and light commercial applications, this valve helps protect against scalding while ensuring consistent water temperatures across the system. With its lead-free cast bronze body and precision thermostatic control, the ZW1017XL provides reliable performance from minimum to maximum flow conditions.

Available in 3/8", 1/2", 3/4", and 1" sizes, the ZW1017XL is versatile, accurate, and compliant with ASSE 1017 standards for water temperature control.

Features & Benefits

• Accurate thermostatic control maintains outlet water temperature within ±4°F

• Protects against scalding by mixing hot and cold water to safe levels

• Lead-free cast bronze construction ensures long-term durability

• Includes inlet strainers and check valves for added protection

• Multiple connection types available: NPT, sweat, press-fit, or push-fit

• Low-lead compliant to meet national safety standards

Specifications

• Available Sizes: 3/8", 1/2", 3/4", 1"

• Outlet Temperature Range: 95–131°F (35–55°C)

• Hot Supply Temperature: 120–195°F (49–90.5°C)

• Cold Supply Temperature: 40–75°F (4.4–23.8°C)

• Set Temperature Accuracy: ±4°F (2°C)

• Max Inlet Pressure: 145 PSI

• Max Pressure Differential: 15 PSI between hot & cold inlets

• Flow Rate @ 45 PSI Pressure Loss: 18 GPM

• Minimum Flow Rate: 0.5 GPM

• Materials:

  • Body: Low-lead cast bronze (ASTM B 584)

  • Internals: Low-lead brass (ASTM B 927)

  • Piston: Polysulfone

  • Guide tube & checks: Noryl GFN

  • Springs & screens: 300 Series stainless steel

  • Seals: Nitrile elastomer

Installation Tips

• Install at the hot water source for system-wide temperature control.

• Use in conjunction with an ASSE 1070 point-of-use device for end-user safety.

• Include a shut-off valve and thermometer in the tempered line for accurate adjustments.

• Ensure supply temperatures are within recommended ranges for proper performance.

• Flush piping before installation to prevent debris from affecting the valve.

FAQs

Q: What is the main function of the ZW1017XL?
A: It mixes hot and cold water at the source to provide tempered water throughout the system and prevent scalding.

Q: Can this be installed at the faucet or shower?
A: No, this model is not for point-of-use. For end fixtures, use an ASSE 1070-approved valve.

Q: Does it comply with lead-free requirements?
A: Yes, the ZW1017XL is fully compliant with low-lead plumbing standards.

Q: What applications is it best suited for?
A: Ideal for residential hot water systems and light commercial facilities like schools, apartments, and healthcare.

Q: How accurate is the temperature control?
A: It maintains outlet temperatures within ±4°F of the setpoint.