Description
The Watts 0009118 is a 3/4″ Lead-Free (LF) U5B-Z3 Pressure Reducing Valve designed to automatically reduce incoming water supply pressure to a safe, steady downstream level. With an adjustable pressure range of 25 to 75 PSI and a Zone 3 factory preset, this valve delivers consistent performance in residential and light commercial hydronic and plumbing systems.
Built to Watts’ exacting standards, the LF designation confirms lead-free construction for compliance with safe drinking water regulations, making it suitable for potable water applications. The U5B series is a trusted, compact inline pressure reducing valve known for its reliable operation and straightforward installation.
Key Features
- Lead-free (LF) construction — compliant with safe drinking water standards
- 3/4″ connection size for standard residential and commercial piping
- Adjustable pressure range: 25–75 PSI
- Zone 3 (Z3) factory preset for quick, out-of-the-box installation
- Compact inline design for easy integration into existing systems
- Reduces high incoming supply pressure to protect downstream equipment and fixtures
- Suitable for potable water, hydronic heating, and plumbing supply applications
Specifications
- Brand: Watts
- SKU / Part Number: 0009118
- Model: LF U5B-Z3
- Connection Size: 3/4″
- Pressure Range: 25–75 PSI
- Construction: Lead-Free (LF)
- Valve Type: Pressure Reducing Valve (PRV)
Applications
- Residential and light commercial plumbing systems
- Hydronic heating and cooling systems
- Potable water supply lines
- Boiler feed and make-up water lines









