Zurn Wilkins NR3XL 1.5" Pressure Reducing Valve - Lead-Free - 112-NR3XL
The Wilkins NR3XL 112 series 1.5-inch pressure reducing valve delivers reliable, serviceable pressure control for residential and light-commercial water systems. Designed for long service life, the NR3XL combines a cartridge-loaded regulator with an integral bypass check valve and strainer to protect downstream plumbing and reduce maintenance.
Simple to install and easy to service, the NR3XL offers dependable pressure regulation and long-term value. Refer to the included installation and maintenance instructions for sizing, configuration, and commissioning, and consult a licensed plumber for system-specific guidance.
Features
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Integral bypass check valve & strainer: Built-in bypass prevents overpressure from thermal expansion; replaceable strainer captures debris.
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Lead-free construction: Wetted components meet low-lead requirements and the model is NSF/ANSI 61 compliant for potable water systems.
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Pressure performance: 25–75 psi adjustable range for 1.5"–2" models; factory preset to 50 psi for typical domestic use.
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Durable materials: Cast bronze body, brass stem, 302 stainless steel spring and Buna-N/EPDM elastomers for corrosion resistance and longevity.
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Serviceable design: Cartridge-loaded internals and threaded bell provide fast field access; repair kits and replacement cartridges are available.
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Operating limits: Rated to 140°F maximum and up to 300 psi working pressure (model-dependent).
What our Experts Think
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High-performance 1.5" lead-free pressure reducing valve (PRV) designed for stable downstream water pressure control.
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Precision-engineered diaphragm design ensures consistent pressure regulation and system protection.
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Durable lead-free bronze body offers long service life and corrosion resistance in demanding plumbing systems.
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Built for residential, commercial, and light industrial water distribution applications.
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Wide adjustment range allows accurate pressure setting to match system requirements.
- Integrated strainer helps reduce debris-related wear and improves valve longevity.
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Supports code-compliant potable water systems with NSF/ANSI lead-free certification.
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Ideal for protecting fixtures, appliances, and piping systems from excessive inlet pressure.
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Trusted by professionals for reliable, low-maintenance pressure control performance.
Q&A
Q: What is the Zurn Wilkins NR3XL 1.5" Pressure Reducing Valve (112-NR3XL)?
A: A 1-1/2" lead-free pressure reducing valve designed to lower and stabilize incoming water pressure in residential and light commercial plumbing systems.
Q: Where is the 112-NR3XL commonly used?
A: Water supply lines for homes, multifamily buildings, irrigation systems, and commercial plumbing where pressure protection is required.
Q: What are its key features?
A: Integral strainer for debris protection, cartridge-style internals for easy service, and an integral bypass check to manage thermal expansion.
Q: What makes it durable and service-friendly?
A: Lead-free cast bronze body, stainless steel internal components, and a removable cartridge design for fast maintenance and long service life.
Q: What are the operating specifications?
A: Adjustable outlet pressure typically 25–75 PSI (factory set ~50 PSI), up to 300 PSI max inlet pressure, and 140°F max water temperature.
Maintenance Tips
- Inspect regularly for leaks, corrosion, and abnormal pressure fluctuations.
- Verify outlet pressure periodically and adjust the setpoint as needed for consistent performance.
- Flush the system occasionally to remove sediment buildup and maintain smooth operation.
- Clean strainers/screens to prevent clogging and reduced flow.
- Replace worn diaphragms, seals, or O-rings with compatible repair kits when performance drops.
- Protect the valve from freezing and ensure it remains accessible for maintenance and testing.
Damage 
Loss 
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