Wilkins 3" 450 Less Gates

Item Number: 3-450
1 1
$7,727.23
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Wilkins
  • Size: 3 inch
  • Weight: 225.0 lb
  • Lead-Free Compliant
  • Less Shut-Off Valves
  • End Connections: Flanged
  • Body Material: Epoxy-Coated Ductile Iron
  • Maximum Working Water Pressure: 175 psi
  • Maximum Working Water Temperature: 140° F
  • ASSE® Listed 1015

Description

The Wilkins 3" Model 450 Double Check Valve Assembly is a lead-free backflow preventer designed for low health hazard applications. It protects potable water lines from backsiphonage and backpressure. This model features flanged end connections and is supplied without gate valves, ideal for replacement or integration with existing shut-offs. Its N-Pattern configuration and epoxy-coated ductile iron body offer compact installation and corrosion resistance. The device is ASSE® Listed 1015, IAPMO® Listed, and NSF/ANSI/CAN 61 compliant, ensuring reliable performance up to 175 psi working pressure.

Help Me Connect

The Wilkins 3" Model 450 Double Check Valve Assembly features flanged end connections. This device is supplied without shut-off valves, designed to integrate with existing gate valves or for replacement applications where separate valves are preferred. Its "N-Pattern" configuration is engineered for compact installations, making it ideal for tight spaces and retrofit projects.

For installation, refer to local codes, manufacturer's instructions, and the Uniform Plumbing Code. The assembly should be mounted above adequate drains with sufficient side clearance for testing and maintenance, ensuring no part of the unit is submerged.

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Additional Details

The Wilkins 3" Model 450 Double Check Valve Assembly is designed for installation on potable water lines to protect against both backsiphonage and backpressure of polluted water into the potable water supply, ideal for low health hazard applications where lead-free valves are required. This specific device comes without gate valves and features epoxy-coated ductile iron flanged ends in an "N" Pattern configuration, making it suitable for compact new and retrofit installations.



This is a non-stock, special order item and could take up to 2 weeks or more to deliver. All non-stock items are non-refundable. Please be sure you order carefully. If you have ANY questions please contact us before ordering.

Features

  • Lead-Free Compliant for safe potable water applications
  • N-Pattern configuration allows for use in compact enclosures and easy retrofit applications
  • Patented, center-stem guided Compound Check provides low headloss and reliable performance
  • Single access cover reduces maintenance downtime
  • Corrosion-resistant, epoxy-coated ductile iron body and access covers
  • Stainless steel fasteners and springs for enhanced durability

Specifications

  • Product Type: Double Check Valve Assembly
  • Model: 450
  • Size: 3 inch
  • Valves: Less Shut-Off Valves
  • Body Material: Ductile Iron ASTM A 536 Grade 4
  • Access Cover Material: Ductile Iron ASTM A536 Grade 4
  • Coating: FDA Approved Fusion Epoxy Finish
  • Fastener Material: Stainless Steel, 300 Series
  • Elastomer Material: EPDM (FDA approved), Buna Nitrile (FDA approved)
  • Polymer Material: NORYL™
  • Spring Material: Stainless Steel, 300 Series
  • Maximum Working Water Pressure: 175 psi
  • Maximum Working Water Temperature: 140° F
  • Hydrostatic Test Pressure: 350 psi
  • End Connections: Flanged

Certificates & Approvals

  • ASSE® Listed 1015
  • IAPMO® Listed
  • CSA® Certified B64.5
  • AWWA Compliant C510, and C550
  • UL® Classified
  • C-UL® Classified
  • FM® Approved
  • NYC MEA 213-99-M VOL 3
  • Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California
  • Meets NSF/ANSI/CAN 61* requirements (0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)

FAQs

What is the primary application of the Wilkins 3" Model 450 Double Check Valve Assembly?

The Wilkins 3" Model 450 is designed for installation on potable water lines to protect against backsiphonage and backpressure of polluted water into the supply. It is ideal for low health hazard applications where lead-free valves are required.

Does this Model 450 backflow preventer comply with lead-free standards?

Yes, the Wilkins 3" Model 450 Double Check Valve Assembly is lead-free compliant, meeting NSF/ANSI/CAN 61 requirements for safe potable water use.

What type of end connections does this specific Model 450 have?

This Wilkins 3" Model 450 is configured with flanged end connections, providing a secure and robust connection point for your piping system.

Why does this Model 450 come "Less Gates" or without shut-off valves?

This particular configuration is supplied without shut-off valves, making it suitable for replacement installations where existing gate valves will be utilized or for new installations where separate gate valves are preferred.

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

The Wilkins 3" Model 450 Double Check Valve Assembly has a maximum working water pressure of 175 psi and a maximum working water temperature of 140° F.

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