Zurn Wilkins 1-70XL 1" Pressure Reducing Valve — Lead-Free FNPT Union - 1-70XL
The Wilkins 1-70XL is a durable, serviceable 1" pressure reducing valve (PRV) designed for residential and light commercial water systems. Built around a replaceable cartridge and robust materials, it delivers smooth pressure control, long service life, and simple in-field repairs.
Includes a manufacturer specification sheet and installation manual; repair kits and replacement parts are available to extend service life. For application-specific questions, consult the product literature or a licensed plumbing professional.
Features
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Reliable pressure control: Balanced-piston design with factory preset 50 PSI and user-adjustable range from 25–75 PSI for consistent downstream pressure.
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Durable construction: ASTM B584 cast bronze body and bell with stainless steel trim and 300-series stainless steel seat for corrosion resistance.
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Service-friendly cartridge: Unitized, replaceable cartridge and stainless-steel strainer screen simplify maintenance and reduce downtime.
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Lead-free certified: Meets NSF/ANSI/CAN 61 & 372 for low-lead potable water applications and complies with common plumbing codes.
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Installation flexibility: Single-union FNPT connections (threaded x threaded), 5" inlet-to-outlet length, and a 300 PSI pressure rating; may be installed in any orientation.
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Thermal expansion protection: Integral bypass/check prevents pressure buildup from thermal changes in closed systems.
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Performance ratings: Standard temperature rating 140°F and a factory setting that conserves water and reduces system wear.
What our Experts Think
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Stable pressure regulation: Balanced piston design delivers smooth, consistent outlet pressure even under fluctuating demand.
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Built for durability: Cast bronze body with stainless steel internal components resists corrosion and long-term wear.
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Lead-free compliance: Safe for potable water systems and meets modern plumbing code requirements.
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Service-friendly design: Replaceable cartridge system simplifies maintenance and reduces downtime.
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Installer-friendly setup: 1" FNPT union connections allow straightforward installation and replacement in existing lines.
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High pressure tolerance: Rated for up to 300 PSI inlet pressure with adjustable outlet range for precise control.
Q&A
Q: What is the Zurn Wilkins 1-70XL used for?
A: A 1" lead-free pressure reducing valve (PRV) designed to lower and stabilize incoming water pressure in residential and light commercial potable water systems.
Q: Is it suitable for drinking water systems?
A: Yes. It is lead-free compliant and certified for potable water use under NSF/ANSI 61 and related standards.
Q: What connection type does it use?
A: 1" FNPT union connections for easy installation and replacement without cutting pipe.
Q: What pressure range does it support?
A: Factory preset around 50 PSI, adjustable typically from 25–75 PSI depending on system needs.
Q: What are its performance limits?
A: Rated up to 300 PSI maximum working pressure and suitable for standard residential water temperatures.
Q: What materials is it made from?
A: Cast bronze body with stainless steel internal components for durability and corrosion resistance.
Q: Does it help prevent plumbing issues?
A: Yes. It reduces high inlet pressure, helping prevent pipe damage, leaks, and water hammer.
Maintenance Tips
Damage 
Loss 
Theft 
