Zurn Wilkins 6-375AST 6" RPZ Backflow Preventer | Stainless Body NRS Flanged

Zurn WilkinsSKU: ZUR-6-375AST

Price:
Sale Price£7,680.00 GBP
Description

Zurn Wilkins 6" 375AST RPZ Backflow Preventer | Stainless Steel, NRS Gate Valves.

Product Overview:

The Zurn Wilkins 6" 375AST RPZ Backflow Preventer is built to protect large-scale potable water systems from serious contamination risks. Designed for industrial, municipal, and campus applications, this assembly combines high-volume flow capacity with reliable backflow prevention in a rugged stainless steel housing.

Features & Benefits:

  • Designed for high-demand systems with health hazard concerns

  • RPZ assembly with dual checks and a relief valve

  • Stainless steel body with corrosion-resistant internals

  • Full-port NRS gate valves for maximum system flow

  • Lead-free certification ensures potable water compliance

  • Simple in-line service access

  • Ideal for fire protection, HVAC, and city supply lines

Specifications:

  • Size: 6"

  • Body Material: 304L Stainless Steel

  • Working Pressure: 175 PSI

  • Test Pressure: 350 PSI

  • Max Temp: 140°F

  • End Connections: Grooved / Flanged

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

Installation Tips:

  • Install 12–30" above finished grade

  • Ensure drainage for relief valve discharge

  • Maintain clear space around test ports and valve bodies

  • Use proper anchoring and support for heavy lines

  • Comply with fire, plumbing, and water utility regulations

FAQs:

Q: Can this RPZ assembly handle continuous high flow?
A: Yes, the full-port design and relief valve are built for industrial-grade flow conditions.

Q: How often should I test this valve?
A: Most jurisdictions require annual testing; follow your local backflow program.

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