Description
The Watts 0559119 LFMMV-UT-M1 is a 3/4″ lead-free thermostatic mixing valve engineered for reliable, precise hot water temperature control in residential and light commercial plumbing and hydronic systems. Designed to blend hot and cold water to a safe, consistent outlet temperature, this mixing valve helps protect building occupants from scalding while also minimizing the risk of Legionella bacteria growth — making it an ideal solution for domestic hot water distribution, point-of-use applications, and under-sink installations.
Built to Watts’ exacting standards, the LFMMV-UT-M1 features a lead-free construction in compliance with NSF/ANSI 61 and NSF/ANSI 372 requirements, making it suitable for potable water systems. The compact, durable body and field-adjustable temperature setting make installation and commissioning straightforward for HVAC and plumbing professionals.
Key Features
- Lead-free construction — compliant with NSF/ANSI 61 and NSF/ANSI 372 for potable water applications
- 3/4″ connection size for versatile installation in residential and commercial systems
- Thermostatic mixing element automatically blends hot and cold water to a consistent, safe outlet temperature
- Helps prevent scalding and reduces Legionella risk in domestic hot water systems
- Field-adjustable temperature setting for flexible commissioning
- Compact design suitable for under-sink, point-of-use, and distribution system installations
- Durable valve body built for long service life in demanding plumbing and hydronic environments
- Watts LFMMV-UT-M1 series — trusted by HVAC and plumbing professionals
Specifications
- Brand: Watts
- SKU / Part Number: 0559119
- Model: LFMMV-UT-M1
- Connection Size: 3/4″
- Construction: Lead-Free
- Application: Thermostatic Mixing Valve for domestic hot water and hydronic systems
Applications
- Domestic hot water temperature control
- Point-of-use and under-sink installations
- Residential and light commercial plumbing systems
- Hydronic heating distribution systems
- Scalding prevention and Legionella risk mitigation
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