Resideo - Honeywell Home MX129LF Thermostatic Mixing Valve

The MX129LF Thermostatic Mixing Valve from Resideo Honeywell Home delivers precise temperature control for residential and commercial systems. This large-flow, proportional valve features a 1-1/2 inch nominal size with threaded ends and an end-to-end distance of 8.6 inches for flexible installation. It withstands up to 221°F and 150 PSI, ensuring reliable performance across varying supply conditions.

Automatic temperature control comes from the built-in thermostatic element, with temperature adjustable via the included Allen wrench. The valve supports a dual-purpose mixing or diverting mode, making it ideal for space heating, radiant floor heating, heat pump systems, and central distribution in homes, hotels, offices, schools, hospitals, and public facilities. With a flow rate of 75 GPM at 30 PSI and a 13.5 Cv capacity, it maintains steady outlet temperatures and robust distribution. Constructed from non-stick coated Bronze/Stainless Steel, the unit is lead-free and compliant with ASSE 1017 and CSA standards.

• Proportional thermostatic operation with automatic temperature control
• Temperature adjustable with included Allen wrench
• Dual-purpose mixing or diverting valve
• Union/tailpiece connection for easy installation
• Lead-free construction, ASSE 1017 / CSA compliant