Description
The Watts LFN170-M3 (SKU 0559127) is a heavy-duty, lead-free tempering valve engineered to deliver accurate hot water temperature control in commercial and residential hydronic and plumbing applications. With a 1-1/2″ connection size and a broad operating range of 90–180°F, this valve is built to handle demanding system requirements while protecting occupants and equipment from scalding or thermal shock.
The “LF” (Lead-Free) designation ensures compliance with NSF/ANSI 61 and NSF/ANSI 372 standards for drinking water system components, making it suitable for potable water installations where lead-free materials are mandated by code. The M3 configuration provides a reliable thermostatic mixing and tempering action, automatically blending hot and cold water supplies to maintain a consistent, user-set outlet temperature even as inlet conditions fluctuate.
Key Features
- Lead-free (LF) construction — compliant with NSF/ANSI 61 & 372 and applicable plumbing codes
- 1-1/2″ connection size for high-flow commercial and industrial applications
- Wide temperature operating range: 90–180°F for versatile system integration
- Thermostatic tempering action maintains consistent outlet temperature
- Durable body construction designed for long service life in hydronic and plumbing systems
- Watts LFN170-M3 series — trusted in commercial, institutional, and industrial installations
Typical Applications
- Domestic hot water tempering and anti-scald protection
- Hydronic heating system temperature regulation
- Commercial and institutional plumbing systems
- Industrial process water temperature control
Product Specifications
- Brand: Watts
- Model: LFN170-M3
- SKU: 0559127
- Connection Size: 1-1/2″
- Temperature Range: 90–180°F
- Lead-Free: Yes (LF designation)
