Zurn z-34-nr3xldu Pressure Reducing Valve 3/4 Inch

Product Description

The ZURN z-34-nr3xldu is a 3/4-inch nominal pressure reducing valve (PRV) with an integral bypass check valve and strainer built into a single cast bronze body. It is designed to reduce and regulate incoming water pressure to a safe, consistent downstream level, protecting fixtures, appliances, and piping systems from pressure surges and over-pressure conditions. The double union female NPT (FNPT) end connections allow the valve to be removed from the line without disturbing adjacent piping. Rated to 400 psi, the valve is suited for demanding residential and light commercial plumbing installations. A licensed plumber typically specifies and installs this type of valve at the service entry or branch supply point.

This valve is used in residential and light commercial water supply systems where incoming line pressure must be reduced before distribution to fixtures and appliances. The integral strainer catches debris before it reaches the valve seat, extending service life and reducing maintenance. The integral bypass check valve helps protect against backflow conditions within the assembly. Double union construction is a standard installer convenience on replacement and retrofit jobs, particularly in tight mechanical rooms or utility spaces where full pipe disassembly is impractical.

Key Features

• Integral bypass check valve and strainer combined in a single compact body
• Double union FNPT end connections allow in-line removal without cutting pipe
• Cast bronze body provides corrosion resistance in potable water service
• 3/4-inch nominal size fits standard residential and light commercial supply lines
• 400 psi pressure rating accommodates high incoming supply pressures

Compatibility

Designed as an OEM-style replacement or new-installation PRV for 3/4-inch FNPT threaded water supply systems in residential and light commercial plumbing applications.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and the International Plumbing Code (IPC). Shut off the main water supply and relieve system pressure before beginning any work on the valve or surrounding piping. Apply thread sealant or PTFE tape to all NPT connections and tighten to hand-tight plus the appropriate number of turns per the fitting manufacturer guidance — do not over-torque cast bronze fittings. After installation, slowly restore supply pressure and check all unions and connections for leaks before returning the system to service.

Technical Specifications

• Connection Size: 3/4 inches nominal
• End Style: Double Union FNPT
• Maximum Pressure Rating: 400 psi
• Body Material: Cast Bronze
• Integrated Components: Bypass check valve, strainer

Standard Information

• Brand: ZURN
• Manufacturer Part Number: z-34-nr3xldu