Watts LF25AUB-Z3 Pressure Reducing Valve

Watts LF25AUB-Z3 Pressure Reducing Valve delivers reliable downstream pressure control for residential, commercial, and industrial plumbing. This 1 inch valve uses union end connections (female threaded x female threaded) and is built with a cast copper-silicon alloy body for durability. Equipped with an adjustable screw actuation, it lets you set downstream pressure to a safe range and maintain consistent flow.

Engineered with a stainless steel strainer and a sealed spring cage, the LF25AUB-Z3 resists corrosion and keeps debris out of the system. It handles a wide temperature span from 33 to 160°F and supports a maximum pressure rating of 300 psi. The standard factory setting is 50 psi, but you can fine-tune within the 25 to 75 psi downstream range to meet local codes and downstream devices.

• Nominal size: 1 inch
• End connections: Union x Union, female threaded
• Downstream pressure range: 25–75 psi (factory setting 50 psi)
• Materials: Cast copper-silicon alloy body; stainless steel strainer; engineered polymer seat
• Temperature & pressure: 33–160°F; 300 psi rated
• Inclusions: Sealed spring cage; corrosion-resistant adjusting cage screw
• Compliance: ANSI A112.26.2, ASSE 1003, IAPMO, CSA B356, UPC, NSF, MIL-V-18146B
• Lead-free: Yes