3 475 RP, N-PATTERN, GRV X GRV, LESS GATE VALVES

Item Number: 3-475L
1 1
$7,368.01
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Wilkins
  • Size: 3 inch
  • Flow Pattern: N-Pattern
  • End Connections: Grooved x Grooved
  • Maximum Operating Pressure: 175 PSI
  • Body Material: Epoxy coated ductile iron
  • Lead-Free: Yes, NSF/ANSI/CAN 61 compliant
  • Protects against backsiphonage and backpressure
  • Single access cover for reduced maintenance

Description

The Zurn Model 475 3 inch Reduced Pressure Principle Backflow Preventer with an N-Pattern design protects potable water systems from backsiphonage and backpressure in high hazard applications. Featuring grooved end connections, this lead-free assembly is suitable for vertical flow up and down installations in compact spaces. Its durable epoxy-coated ductile iron body and patented center-stem guided Compound Check ensure superior reliability and low headloss. With a maximum operating pressure of 175 PSI, this backflow preventer is ASSE® Listed 1013 and NSF/ANSI/CAN 61 compliant, providing robust and certified protection.

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Connections

This Zurn Model 475 Reduced Pressure Principle Backflow Preventer features grooved end connections on both the inlet and outlet sides. It is designed to connect to steel pipe with grooved ends, providing a secure and reliable union for your plumbing system.

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Additional Details

The Zurn Model 475 Reduced Pressure Principle Backflow Preventer provides critical protection for potable water lines in high hazard applications.

This backflow preventer safeguards against both backsiphonage and backpressure of contaminated water into the potable water supply, ensuring protection where a potential health hazard exists. Its N-Pattern shape is designed for vertical flow up and vertical flow down installations, making it ideal for new or retrofit projects in compact spaces. It features a single access cover to reduce maintenance downtime and repair costs, and utilizes a patented, center-stem guided Compound Check for reliable performance and low headloss.

Application & Features

  • Designed for installation on potable water lines.
  • Protects against backsiphonage and backpressure contamination.
  • N-Pattern design for vertical flow up and vertical flow down applications.
  • Ideal for new or retrofit installations in compact spaces.
  • Single access cover facilitates easier maintenance and reduces repair costs.
  • Patented, center-stem guided Compound Check ensures low headloss, superior reliability, and unmatched performance.
  • Suitable for use where lead-free valves are required.

Specifications

  • Product Series: Zurn Model 475
  • Nominal Size: 3 inch
  • Flow Pattern: N-Pattern
  • End Connections: Grooved x Grooved
  • Maximum Working Water Pressure: 175 PSI
  • Maximum Working Water Temperature: 140°F
  • Hydrostatic Test Pressure: 350 PSI

Materials

  • Main Valve Body: Ductile Iron ASTM A536 Grade 4
  • Access Covers: Ductile Iron ASTM A 536 Grade 4
  • Coatings: 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

Certificates & Approvals

  • ASSE® Listed 1013
  • AWWA Compliant C511 (with gates only)
  • AWWA Compliant C550
  • CSA B64.4 (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)
  • Lead-Free: Yes

FAQs

What is the primary purpose of the Zurn Model 475 backflow preventer?

The Zurn Model 475 is designed to protect potable water lines from contamination caused by both backsiphonage and backpressure in high hazard applications, ensuring the safety of the water supply.

What type of connections does this backflow preventer use?

This particular Zurn Model 475 features grooved end connections on both the inlet and outlet, designed for compatibility with steel pipe that has grooved ends.

Is this product suitable for all types of water flow installations?

The N-Pattern design of the Model 475 is specifically engineered for vertical flow up and vertical flow down applications, making it ideal for installations in compact spaces or retrofit projects.

What is the maximum operating pressure and temperature for this device?

The Zurn Model 475 can withstand a maximum working water pressure of 175 PSI and a maximum working water temperature of 140°F.

Does this backflow preventer meet lead-free requirements?

Yes, the Zurn Model 475 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.

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