3/4" Copper Reducing Valve, Lead-Free, Female Union x Female

Watts 3/4" Pressure Reducing Valve – Dependable Water Pressure Control for Demanding Systems

Designed for precise regulation of downstream water pressure in residential and commercial systems, the Watts 3/4" Pressure Reducing Valve with copper silicon alloy body is a proven solution for protecting plumbing components and optimizing system performance. With a factory preset pressure of 50 psi (adjustable from 25–75 psi), it helps mitigate issues caused by fluctuating or excessive inlet pressure, including noise, fixture damage, and unnecessary water waste.

Engineered for Performance and Longevity

This valve features a balanced piston design that ensures stable outlet pressure regardless of variations in inlet supply. Constructed from lead-free copper silicon alloy and fitted with reinforced EPDM diaphragms and replaceable polymer seats, it delivers superior durability in potable water applications. The integral stainless steel strainer and in-line serviceable design further reduce maintenance time and protect downstream components.

Performance Features

• Adjustable Outlet Pressure: Field-adjustable from 25–75 psi; factory set at 50 psi
• High Inlet Pressure Tolerance: Rated for static pressures up to 300 psi
• Corrosion-Resistant Construction: Lead-free copper silicon alloy body resists pitting and dezincification
• In-Line Serviceability: Replaceable seat module allows for quick maintenance without removing the valve from the line
• Integrated Stainless Steel Strainer: Protects the internal valve assembly from debris

Technical Specifications

• Connection Size: 3/4" NPT female inlet and outlet
• Pressure Rating: 300 psi max inlet / 25–75 psi adjustable outlet
• Temperature Range: 33°F to 160°F
• Body Material: Lead-Free Copper Silicon Alloy (ASTM B584)
• Diaphragm Material: Reinforced EPDM
• Seat: Replaceable polymer seat disc
• Certifications: ASSE 1003, CSA B356, NSF/ANSI 61 & 372 compliant

Installation Guidance

This valve should be installed in a horizontal orientation with the spring bonnet facing upward. While it is designed for ease of maintenance, installation should be performed by a licensed plumber to ensure compliance with local plumbing codes and optimal performance. Proper sizing and positioning are essential to avoid cavitation, noise, or premature wear.

Built for Professional Applications

Whether you’re working on a municipal water connection, booster pump discharge, or domestic service line, this pressure reducing valve offers the strength, adjustability, and reliability required by professionals. Its compact size and field-serviceable design make it especially practical for retrofit installations or service calls.