Description
The Watts 0555175 is a 1/2″ LF600 Maxiflo lead-free check valve engineered to deliver dependable, one-directional flow control in hydronic heating, plumbing, and mechanical piping systems. Built to the Watts LF600 Maxiflo series standard, this valve features a lead-free bronze body construction that meets stringent NSF/ANSI 61 and NSF/ANSI 372 low-lead compliance requirements — making it suitable for potable water and hydronic applications where material safety is paramount.
The Maxiflo design provides a low-cracking pressure and full-flow performance, minimizing pressure drop across the valve while ensuring positive backflow prevention. The compact 1/2″ connection size makes it ideal for tight mechanical spaces, residential and light commercial boiler rooms, and hydronic distribution systems.
Key Features
- Lead-free bronze body construction — compliant with NSF/ANSI 61 & NSF/ANSI 372
- 1/2″ connection size for versatile installation in residential and light commercial systems
- Maxiflo design for low pressure drop and high flow capacity
- Positive backflow prevention — protects system integrity and water quality
- Suitable for potable water, hydronic heating, and mechanical piping applications
- Compact form factor for easy installation in space-constrained environments
Specifications
- Brand: Watts
- SKU / Part Number: 0555175
- Series: LF600 Maxiflo
- Connection Size: 1/2″
- Body Material: Lead-Free Bronze
- Lead Compliance: Lead-Free (LF) — NSF/ANSI 61 & 372
- Valve Type: Check Valve
Applications
- Hydronic heating and cooling distribution systems
- Potable water supply lines
- Boiler and chiller piping circuits
- Residential and light commercial mechanical systems
- Domestic hot water recirculation systems
