3 475 RP DI BODY N PATTERN VERT BFLY, LESS GATE VALVES

Item Number: 3-475VL
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$7,368.01
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Wilkins
  • Nominal Size: 3 inch
  • Flow Configuration: Vertical Up (Z-Pattern)
  • Maximum Working Pressure: 175 PSI
  • Body Material: Ductile Iron ASTM A536 Grade 4
  • Elastomers: EPDM (FDA approved), Buna Nitrile (FDA approved)
  • Lead-Free: NSF/ANSI/CAN 61 compliant
  • Certification: ASSE® Listed 1013
  • Shut-off Valves: Butterfly valves

Description

The Zurn Wilkins 3-inch Model 475V Reduced Pressure Principle Backflow Preventer is engineered for high-hazard potable water applications, protecting against backsiphonage and backpressure. This Z-pattern unit features a ductile iron body with an FDA-approved epoxy coating, designed for vertical flow up installations. It includes integral butterfly valves and a patented center-stem guided Compound Check for reliable, low-headloss performance. Meeting NSF/ANSI/CAN 61 lead-free requirements and ASSE 1013 certification, it's a compact and durable solution for compliance and water safety. Its single access cover simplifies maintenance.

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Installation Orientation

  • This Model 475V backflow preventer is designed specifically for vertical flow up installations in a Z-pattern configuration.

Connection Types

  • The unit can be connected using either grooved fittings for steel pipe (AWWA C606-87) or flanged connections (ANSI B16.42 Class 150), depending on your piping system. It is supplied with integral butterfly valves as shut-offs.

Installation Guidelines

  • Always install in accordance with manufacturer's instructions and local plumbing codes (e.g., Uniform Plumbing Code).
  • Mount the assembly above adequate drains, ensuring sufficient side clearance for testing and maintenance.
  • The installation must prevent any part of the unit from being submerged.
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Additional Details

The Zurn Wilkins Model 475V is a Reduced Pressure Principle (RP) Backflow Preventer designed for installation on potable water lines, providing protection against backsiphonage and backpressure of contaminated water where a potential health hazard exists.

This 3-inch Z-pattern backflow preventer is specifically configured for vertical flow up applications and is supplied with butterfly valves, offering a compact solution for new or retrofit installations.

Key Features

  • Vertical Upward Flow (Z-Pattern): Specifically designed for vertical up installations, ideal for compact spaces and retrofits.
  • Ductile Iron Body: Main valve body and access covers constructed from durable ductile iron ASTM A536 Grade 4.
  • Center-Stem Guided Compound Check: Patented design ensures low headloss, superior reliability, and unmatched performance.
  • Fusion Epoxy Finish: FDA Approved coating on the main body and access covers for enhanced durability and corrosion resistance.
  • Lead-Free Design: Complies with NSF/ANSI/CAN 61 requirements for potable water applications, ensuring a maximum weighted average lead content of 0.25%.
  • Maintenance Accessibility: Single access cover simplifies maintenance, reducing downtime and repair costs.

Installation must be made so that no part of the unit can be submerged. Local codes and manufacturer's instructions must be followed.

Specifications

  • Product Type: Reduced Pressure Principle Backflow Preventer (RP)
  • Model: 475V
  • Nominal Size: 3 inch
  • Flow Configuration: Vertical Up (Z-Pattern)
  • Main Valve Body Material: Ductile Iron ASTM A536 Grade 4
  • Access Cover Material: Ductile Iron ASTM A536 Grade 4
  • Coating: FDA Approved fusion epoxy finish
  • Internal Materials: Stainless Steel 300 Series, NORYL™
  • Elastomers: EPDM (FDA approved), Buna Nitrile (FDA approved)
  • Fasteners: Stainless Steel 300 Series
  • Maximum Working Water Pressure: 175 PSI
  • Maximum Working Water Temperature: 140°F
  • Hydrostatic Test Pressure: 350 PSI

Certificates & Approvals

  • ASSE® Listed 1013
  • AWWA Compliant C511 (with gates only)
  • AWWA Compliant C550
  • CSA B64.4 (4" thru 8" models)
  • 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
  • NSF/ANSI/CAN 61 Lead-Free: Meets 0.25% max weighted average lead content

End Connections

  • Grooved for Steel Pipe: AWWA C606-87
  • Flanged: ANSI B16.42 Class 150

FAQs

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

The Model 475V is designed for installation on potable water lines to protect against both backsiphonage and backpressure of contaminated water, specifically in high hazard applications.

What is the required installation orientation for this 475V model?

This specific 475V model (Z-pattern) is designed for vertical flow up applications only, offering a compact footprint for new or retrofit installations.

What type of shut-off valves are included with this backflow preventer?

This backflow preventer is supplied with integral butterfly valves for shut-off, as indicated by "VERT BFLY" in its product name and the supplier description.

What materials are used for the main components of the 475V?

The main valve body and access covers are made of ductile iron (ASTM A536 Grade 4) with an FDA-approved fusion epoxy finish. Internal components include stainless steel and NORYL™, with EPDM and Buna Nitrile elastomers.

Is the Zurn Wilkins Model 475V compliant with lead-free standards?

Yes, the Model 475V meets the requirements of NSF/ANSI/CAN 61, ensuring a maximum weighted average lead content of 0.25%, making it compliant with lead-free standards for potable water.

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