Description
The Watts 0559115 is a 1/2″ sweat-connection thermostatic mixing valve (model MMV-US-M1) engineered to deliver precise, consistent mixed-water temperature control across a range of 80–120°F. Designed for residential and light commercial hydronic and domestic hot water applications, this valve blends hot and cold supply water to maintain a safe, pre-set outlet temperature — protecting occupants from scalding while ensuring comfort and code compliance.
Key Features
- Model MMV-US-M1 thermostatic mixing valve by Watts
- 1/2″ sweat (solder) end connections for reliable, leak-free installation
- Temperature range: 80–120°F — ideal for domestic hot water and hydronic distribution
- Thermostatic element automatically compensates for supply pressure and temperature fluctuations
- Provides scald protection and anti-scalding performance at point-of-use or system-wide
- Compact, durable construction suited for tight mechanical spaces
- Trusted Watts quality and engineering for long service life
Typical Applications
- Domestic hot water tempering at water heaters and storage tanks
- Radiant floor heating and hydronic distribution systems
- Residential and light commercial plumbing systems
- Point-of-use scald protection at sinks, showers, and fixtures
Specifications
- SKU: 0559115
- Model: MMV-US-M1
- Connection Size: 1/2″ sweat (solder)
- Temperature Range: 80–120°F
- Brand: Watts
