Description
The Armstrong Fluid Technology Circuit Balancing Valve (Model 571110LF-361) delivers precision flow regulation where it matters most. Designed for hydronic heating systems, this 3/4″ NPT valve enables technicians to fine-tune flow rates with confidence, ensuring optimal system balance, reduced energy waste, and consistent comfort across every zone.
Built from high-quality metals, this valve is engineered for long-term durability in demanding environments — from radiant floor heating and baseboard systems to larger commercial hydronic installations. Its low-lead construction meets modern plumbing standards, while the standard NPT threaded connection allows for fast, straightforward installation with minimal downtime.
Key Benefits:
- Precise flow adjustment for optimized system efficiency and energy savings
- 3/4″ NPT threaded connection for easy, code-compliant installation
- Ideal for radiant floor heating, baseboard heating, and low-flow hydronic systems
- Rugged metal construction engineered for lasting performance and reliability
- Suitable for both residential and commercial hydronic applications
Product Specifications:
- Brand: Armstrong Fluid Technology
- Model / MPN: 571110LF-361
- Connection Type: 3/4″ NPT (Threaded)
- Material: High-quality metal alloy
- Application: Radiant floor heating, baseboard heating, and hydronic HVAC systems
- Compliance: Low-lead construction







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