Zurn Wilkins 4-375AST 4" RPZ Backflow Preventer | Stainless Body NRS Flanged

Zurn WilkinsSKU: ZUR-4-375AST

Price:
Sale Price$5,049.99 USD
Description

Zurn Wilkins 4" 375AST RPZ Backflow Preventer | Stainless Steel, NRS Gate Valves.

Product Overview:

The Zurn Wilkins 4" 375AST RPZ Backflow Preventer is designed to protect potable water systems in environments where health hazards exist. With a corrosion-resistant stainless steel body and non-rising stem gate valves, this RPZ backflow assembly delivers outstanding flow capacity, reliability, and low maintenance requirements in commercial and institutional applications.

Features & Benefits:

  • Backflow protection for systems with potential health hazards

  • Durable 304L stainless steel body

  • Short body length for compact installations

  • NRS gate valves maximize space and safety

  • Certified for potable systems – lead-free and NSF compliant

  • Modular check and relief valve assemblies simplify servicing

  • Approved for horizontal and vertical installations

Specifications:

  • Size: 4"

  • Body: 304L Stainless Steel

  • Components: NORYL™, EPDM, Stainless Steel

  • Working Pressure: 175 PSI

  • Test Pressure: 350 PSI

  • Max Temp: 140°F

  • End Connections: Grooved or Flanged

  • Certifications: ASSE 1013, NSF 61/372, FM®, UL®, CSA®, IAPMO®

Installation Tips:

  • Install above ground with a minimum clearance of 12"

  • Allow adequate space for future testing and repairs

  • Never install in a location subject to flooding or submersion

  • Secure all drain lines from the relief valve to a proper discharge location

  • Follow the manufacturer's maintenance schedule

FAQs:

Q: Is this RPZ model compliant with current plumbing codes?
A: Yes, it meets or exceeds ASSE, NSF, and local backflow code standards.

Q: Can I replace older RPZ models with this unit?
A: Yes, this assembly is retrofit-ready and compatible with older models.

Q: Does the unit come with test cocks?
A: Yes, factory-installed test cocks are included for certification testing.

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