3/4 LFN45BM1-U Water Pressure Reducing Valve, NPT

The Watts 3/4 LFN45BM1-U is a lead-free water pressure reducing valve designed for residential and commercial plumbing systems. High incoming water pressure can damage pipes, fixtures, and appliances while wasting water. This valve automatically reduces incoming pressure to a safe, predetermined level, protecting your entire downstream plumbing system and lowering water consumption.

The valve features union inlet and outlet connections that allow easy removal and service without disconnecting the entire plumbing line. Its sealed spring cage design makes it accessible for outdoor or pit installations. An integral stainless steel strainer protects internal components, while the engineered thermoplastic seat ensures dependable, long-lasting sealing. A bypass mechanism controls thermal expansion pressure, adding an extra layer of system protection.

Features and Benefits

• Adjustable Pressure Range: Set outlet pressure between 25 and 75 psi to match your system needs, with a factory default of 50 psi.
• Lead-Free Construction: Meets drinking water safety standards for residential and commercial use.
• Easy Serviceability: Designed for easy accessibility and serviceability without removing the valve from the line.
• Thermal Expansion Control: Bypass feature protects the plumbing system.
• Stainless Steel Strainer: Integral filter protects the valve and downstream components from debris.
• Industry-Approved Standards: Meets ASSE 1003, ANSI A112.26.2, and CSA Standard B356 for durability and safety.

Specifications

• Brand: Watts
• Model: 3/4 LFN45BM1-U
• Size: 3/4 inch NPT female inlet and outlet
• Body Material: Silicone alloy
• Seat Material: Thermoplastic
• Standard Pressure Setting: 50 psi
• Adjustable Range: 25 to 75 psi (172 to 517 kPa)
• Temperature Range: 33 °F to 160 °F
• Connections: Union inlet and outlet
• Certifications: ASSE 1003, ANSI A112.26.2, CSA Standard B356, IAMPO listed
• Lead Content: Less than 0.25% by weight in wetted surfaces