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Watts LFN45B Series 1' Lead-Free Cast Copper Silicon Alloy Water Pressure Reducing Valve, Crimp Double Union End Connections, Elastomer Disc, Adjustable Pressure 25 to 75 psi, Maximum 400 psi

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About this item

LEAD-FREE WATER PRESSURE REDUCTION: The Watts 1" Lead-Free Water Pressure Reducing Valve reduces incoming water pressure to protect plumbing systems and reduce water consumption in commercial, industrial, and residential applications. This assembly includes a removable integral stainless steel strainer, thermoplastic seat cartridge, reinforced diaphragm, thermal expansion bypass, and a sealed spring cage for waterwork pit installations.
EASY INSTALLATION AND MAINTENANCE: Featuring crimp double union end connections for PEX tubing, this lead-free water pressure reducing valve is designed for straightforward installation with easy handling and in-line serviceability.
THERMAL EXPANSION PROTECTION: The valve includes a bypass feature that effectively controls thermal expansion pressure, permitting the flow of water back through the valve into the main when pressures - due to thermal expansion on the outlet side of the valve - exceed the pressure in the main supply.
VERSATILE PRESSURE ADJUSTMENT: This valve is suitable for pressures up to 400 psi (27.6 bar) and allows for an adjustable pressure range between 25 to 75 psi (172 to 517 kPa), with a standard setting at 50 psi (345 kPa).
EVERY DROP COUNTS: Water. It's in our name and close to our hearts. Since 1874, Watts Water Technologies has been delivering innovative technologies that make the world's most precious resource safe and accessible. Everything we design is made to keep the Earth's most precious resource safer, cleaner, and more useful for our customers. Our family of brands offers one of the most varied product lines in the world, with world-class, water-related solutions.

The Watts 1" Lead-Free Water Pressure Reducing Valve is engineered to safeguard plumbing systems and lower water consumption in commercial, industrial, and residential settings. This valve is a comprehensive solution designed to support a broad pressure range; it is able to handle pressures up to 400 psi (27.6 bar), as well as offers an adjustable pressure range from 25 to 75 psi (172 to 517 kPa), with the reduced pressure range set at 50 psi (345 kPa).
This assembly includes a lead-free cast copper silicon alloy body for durability, integral stainless steel strainer, thermoplastic seat cartridge, reinforced diaphragm, thermal expansion bypass, and a sealed spring cage for accessible outdoor or pit installations.
The valve conveniently includes a bypass feature that effectively controls thermal expansion pressure, permitting the flow of water back through the valve into the main when pressures - due to thermal expansion on the outlet side of the valve - exceed the pressure in the main supply.
Featuring crimp double union end connections for PEX tubing, this lead-free water pressure reducing valve is designed for straightforward installation with easy handling, allowing for a secure and reliable fit. Furthermore, its compact construction ensures it can be easily handled during installation, and its in-line serviceability feature allows for quick maintenance without removing the valve from the pipeline, ensuring minimal downtime and keeping the system running efficiently.

DIY Fixer

Reviewed in the United States on March 10, 2025

Replaced the previous Watts unit was in service for 16 years. Quality product that will last!

DIY Fixer

Reviewed in the United States on March 10, 2025

Replaced the previous Watts unit was in service for 16 years. Quality product that will last!

Customer

Reviewed in the United States on September 28, 2024

It's great buying a PRV with the correct adapters already installed, instead of having to buy more parts.