1" Copper Reducing Valve, Female Union x Female

Watts 1" Lead-Free Copper Pressure Reducing Valve – Built for Consistent Control and Long-Term Reliability

The Watts 1" Pressure Reducing Valve is engineered to deliver precise water pressure regulation in high-demand systems. Constructed from lead-free copper silicon alloy, this valve is suitable for commercial, residential, and industrial water supply lines where pressure control is critical to protecting fixtures, appliances, and piping infrastructure.

Designed for performance and longevity, this model features an adjustable outlet pressure range and a built-in stainless steel strainer for sediment protection. Its serviceable in-line design makes routine maintenance and repairs more efficient without removing the valve from the line.

Engineered for Performance

Whether you're installing in a new construction build or upgrading an existing system, the Watts LF25AUB-Z3 offers superior dependability. This valve is a proven solution for applications requiring a maximum inlet pressure of 300 psi and adjustable downstream pressure between 25 and 75 psi.

Key Features

• Lead-Free Alloy Body: Made from cast copper silicon alloy for strength and potable water compliance (NSF 61, NSF 372).
• Factory Preset: Outlet pressure set at 50 psi; field adjustable from 25 to 75 psi.
• Integrated Strainer: Stainless steel screen protects internal components from debris and scale buildup.
• Thermal Bypass Protection: Allows for internal thermal expansion relief, improving system safety.
• Removable Cartridge: Simplifies in-line servicing, reducing downtime on the jobsite.

Specifications

• Inlet/Outlet Size: 1” NPT
• Maximum Working Pressure: 300 psi
• Adjustable Outlet Pressure: 25–75 psi
• Temperature Range: 33°F to 160°F
• End-to-End Length: 8-3/4”
• Vertical Center Height: 9”
• Compliance: ASSE 1003, CSA B356, NSF 61, NSF 372

Installation Considerations

This valve is typically installed downstream of the water meter on the main line or at the entry point of sensitive fixtures or appliances. Ensure access to the cartridge and screen for future servicing. For best performance and code compliance, installation should be completed by a licensed plumbing professional familiar with local pressure regulations and system sizing requirements.

Professional Use Insights

Contractors: The LF25AUB-Z3 series is a reliable choice for multi-unit housing, commercial renovations, and retrofits where pressure fluctuations can cause equipment strain. The union inlet connection and integrated strainer streamline the install process while minimizing callbacks due to sediment or scale issues.

Facility Technicians: Use this valve in maintenance settings where predictable outlet pressure is essential for water-fed equipment and consistent fixture operation. The cartridge-based design allows for simplified inspection and rebuilds during scheduled service intervals.

Summary

The Watts 1" Lead-Free Copper Pressure Reducing Valve combines rugged materials with adjustable, serviceable performance—making it a top-tier solution for systems that demand dependable pressure management. Backed by industry certifications and Watts’ proven engineering, this valve is built for professionals who expect consistent results under variable system conditions.