Description
The Taco Comfort Solutions 5120-2 MixVLV is a high-performance thermostatic mixing valve engineered for reliable, code-compliant temperature control in hydronic and domestic hot water systems. Certified to both ASSE 1017 and ASSE 1070 standards, this valve delivers consistent, safe outlet water temperatures — protecting building occupants from scalding while maintaining comfort across a wide range of flow conditions. It ships with loose fittings (LSS FTGS) for added installation flexibility, making it well-suited for new construction and retrofit applications alike.
Key Features
- Dual ASSE 1017 and ASSE 1070 certification for point-of-use and point-of-distribution mixing applications
- Thermostatic mixing valve design automatically blends hot and cold water to a safe, preset outlet temperature
- Includes loose fittings (LSS FTGS) for flexible, field-adaptable installation
- Protects against scalding by maintaining consistent mixed water temperature output
- Suitable for residential and light commercial hydronic and domestic hot water systems
- Engineered and backed by Taco Comfort Solutions — a trusted leader in hydronic system components
Certifications & Standards
- ASSE 1017 — Performance Requirements for Temperature Actuated Mixing Valves for Hot Water Distribution Systems
- ASSE 1070 — Performance Requirements for Water Temperature Limiting Devices
Applications
- Domestic hot water mixing and temperature limiting
- Hydronic heating system supply temperature control
- Scald protection at point-of-use fixtures
- Residential, multi-family, and light commercial plumbing systems







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