6 475 RP DI BODY N PATTERN VERT BFLY, LESS GATE VALVES

Item Number: 6-475VL
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$14,189.32
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Wilkins
  • Reduced Pressure Principle Backflow Preventer
  • Model 475V, Z-Pattern Vertical Flow Up
  • Size: 6 inch
  • Main Body & Access Covers: Ductile Iron, Epoxy Coated
  • Equipped with Butterfly Valves (less gate valves)
  • Maximum Working Pressure: 175 PSI
  • Maximum Working Temperature: 140°F
  • Lead-Free Design: NSF/ANSI/CAN 61 Compliant
  • Patented, Center-Stem Guided Compound Check

Description

This Zurn Wilkins 6-inch Model 475V Reduced Pressure Principle Backflow Preventer protects potable water lines from contamination in high hazard applications. Designed for vertical flow up in a compact z-pattern configuration, it includes butterfly valves and a patented, center-stem guided compound check for low headloss and superior reliability. Constructed with an epoxy-coated ductile iron body and stainless steel internals, this device meets NSF/ANSI/CAN 61 lead-free requirements and multiple certifications like ASSE 1013 and CSA B64.4. It is suitable for new installations or retrofits.

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Installation Orientation

  • The Zurn Wilkins Model 475V is specifically designed and certified for vertical flow up installations. The internal components are configured to operate correctly with water flowing upwards through the device.

Valve Configuration

  • This model features butterfly valves, providing reliable shut-off capability without traditional gate valves.

End Connections

  • The backflow preventer can be connected via grooved ends compatible with steel piping (meeting AWWA C606-87 standards) or via flanged ends (meeting ANSI B16.42 Class 150 standards).

General Installation

  • Local codes and manufacturer instructions should always be followed. It requires mounting above adequate drains with sufficient side clearance for testing and maintenance, ensuring no part of the unit can be submerged.
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Additional Details

The Zurn Wilkins 6 inch Model 475V Reduced Pressure Principle Backflow Preventer is designed for installation on potable water lines to protect against both backsiphonage and backpressure of contaminated water, especially where a potential health hazard exists.

This backflow preventer is specifically configured for vertical flow up applications, featuring a z-pattern design and utilizing butterfly valves. Its compact footprint is ideal for easy retrofits, and it incorporates a patented, center-stem guided Compound Check for low headloss and reliable performance.

Features

  • Designed for high hazard protection in potable water applications
  • Vertical flow up configuration (z-pattern)
  • Equipped with butterfly valves (less gate valves)
  • Compact design with a small footprint for easy retrofits
  • Patented, center-stem guided Compound Check ensures low headloss, superior reliability, and unmatched performance
  • Single access cover reduces maintenance downtime and repair costs
  • Meets NSF/ANSI/CAN 61 lead-free requirements

Specifications

General

  • Model: 475V
  • Size: 6 inch
  • Application: Potable water lines, high hazard protection
  • Flow Configuration: Vertical flow up (z-pattern)
  • Valve Type: Reduced Pressure Principle Backflow Preventer with butterfly valves
  • Relief Valve Discharge Port (for 6"): 2.75 sq. in.

Materials

  • Main Valve Body: Ductile Iron ASTM A536 Grade 4 (FDA Approved fusion epoxy finish)
  • Access Covers: Ductile Iron ASTM A 536 Grade 4 (FDA Approved fusion epoxy finish)
  • Internals: Stainless steel, 300 Series, NORYL™
  • Fasteners: Stainless Steel, 300 Series
  • Elastomers: EPDM (FDA approved), Buna Nitrile (FDA approved)
  • Polymers: NORYL™
  • Springs: Stainless steel, 300 series

Performance

  • Maximum Working Water Pressure: 175 PSI
  • Maximum Working Water Temperature: 140°F
  • Hydrostatic Test Pressure: 350 PSI

Connections

  • End Connections: Grooved for steel pipe (AWWA C606-87), Flanged (ANSI B16.42 Class 150)

Certificates & Approvals

  • ASSE® Listed 1013
  • AWWA Compliant C511 (with gates only), and C550
  • CSA B64.4 Certified (4" thru 8")
  • CUPC® Listed
  • UL® Classified
  • C-UL® Classified
  • FM® Approved
  • NYC MEA 468-99-M VOL 4
  • Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California
  • Meets the requirements of NSF/ANSI/CAN 61 (0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)

FAQs

What is the primary purpose of the Zurn Wilkins Model 475V?

It is designed to protect potable water lines from contamination due to backsiphonage and backpressure, providing high hazard protection in various applications.

What flow orientation is this model designed for?

The Zurn Wilkins Model 475V is specifically designed for vertical flow up installations, featuring a z-pattern configuration.

What type of valves does this model use?

This particular Model 475V is equipped with butterfly valves, specifically designed to be supplied without traditional gate valves.

What are the main body and access cover materials?

Both the main body and access covers are made from epoxy-coated ductile iron (ASTM A536 Grade 4), ensuring durability and corrosion resistance.

Does this backflow preventer meet lead-free requirements?

Yes, the Zurn Wilkins Model 475V meets the requirements of NSF/ANSI/CAN 61, certifying its compliance with lead-free standards for potable water systems.

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