Description
The Watts 0559106 is a 1-inch 1170-UTM2 series thermostatic mixing valve engineered for precise hot water temperature control in hydronic and plumbing systems. Built to lead-free (LF) standards, this valve meets stringent regulatory requirements for potable water applications, making it a trusted choice for commercial and residential installations alike.
Designed with unthreaded (UnThrd) end connections, the 1170-UTM2 configuration offers flexible integration into a variety of piping arrangements. Its thermostatic mixing element automatically blends hot and cold water supplies to deliver a consistent, safe outlet temperature within its 90°F to 160°F operating range — protecting against scalding while maintaining system efficiency.
Key Features
- 1-inch valve size for robust flow capacity
- Thermostatic mixing action maintains consistent outlet temperature
- Operating temperature range: 90°F to 160°F
- Lead-free (LF) construction — compliant with potable water regulations
- Unthreaded end connections for versatile installation
- 1170-UTM2 union tee mixing configuration
- Suitable for commercial and residential hydronic systems
Applications
- Domestic hot water tempering and anti-scald protection
- Hydronic heating system mixing
- Boiler system protection and temperature regulation
- Commercial plumbing and mechanical systems
Specifications
- Brand: Watts
- SKU / Part Number: 0559106
- Model: 1170-UTM2
- Valve Size: 1 inch
- Temperature Range: 90°F – 160°F
- End Connection Type: Unthreaded
- Lead-Free Compliant: Yes









