Wilkins 8" 450 Less Gates

Item Number: 8-450
1 1
$28,733.31
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Wilkins
  • Product Type: Double Check Valve Assembly
  • Weight: 835.0 lb
  • Model: ZURN Wilkins 450
  • Size: 8 inch
  • Configuration: Less Gate Valves
  • End Connections: Flanged (ANSI B16.42 Class 150)
  • Maximum Working Water Pressure: 175 psi
  • Maximum Working Water Temperature: 140° F
  • Body Material: Epoxy-coated Ductile Iron

Description

The Wilkins Model 450 Double Check Valve Assembly is an 8-inch backflow preventer for potable water lines, protecting against backsiphonage and backpressure in low health hazard applications. This specific model comes without gate valves, designed for integration with existing systems or separately sourced valves. It features an epoxy-coated ductile iron body with flanged end connections, ensuring corrosion resistance and robust installation. Certified lead-free and listed by ASSE 1015 and IAPMO, it offers reliable performance for commercial and industrial settings. Its "N" pattern design allows for compact installations. Item number 8-450.

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Connections & Compatibility

  • This Wilkins Model 450 Double Check Valve Assembly is designed with flanged end connections, specifically to ANSI B16.42 Class 150 standards, for secure integration into existing plumbing systems.
  • The "N" pattern configuration allows for installation in compact spaces and is suitable for both new construction and retrofit applications.
  • As a "Less Gate Valves" model, this device is intended for replacement or installation where gate valves are supplied separately or already pre-existing in the system.
  • Suitable for installation on potable water lines in low health hazard applications, protecting against backsiphonage and backpressure.
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Additional Details

The Wilkins Model 450 Double Check Valve Assembly is an 8 inch lead-free backflow preventer designed for installation on potable water lines to protect against backsiphonage and backpressure of polluted water into the potable water supply. This specific model comes without gate valves and is an epoxy coated cast iron flanged device with an "N" pattern configuration, ideal for replacement and use with your pre-existing valves.

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 to order carefully.

Application

  • Designed for low health hazard applications where a potential health hazard does not exist.
  • Protects potable water supply from backsiphonage and backpressure of polluted water.

Features

  • "N" pattern configuration ideal for new and retrofit installations in compact locations.
  • Patented, center-stem guided Compound Check provides low headloss and reliable performance.
  • Single access cover design reduces maintenance downtime.
  • Checks are accessible for maintenance without removing the device from the line.

Materials

  • Main Valve Body: Ductile Iron ASTM A 536 Grade 4, epoxy coated.
  • Access Covers: Ductile Iron ASTM A536 Grade 4, epoxy coated.
  • Fasteners & Springs: Stainless Steel, 300 Series.
  • Elastomers: EPDM (FDA approved), Buna Nitrile (FDA approved).
  • Polymers (Seat Ring & Check Valve): NORYL™.

Specifications

  • Product Type: Double Check Valve Assembly
  • Model: 450
  • Size: 8 inch
  • Configuration: Less Gate Valves
  • End Connections: Flanged (ANSI B16.42 Class 150)
  • Pattern: "N" Pattern
  • Maximum Working Water Pressure: 175 psi
  • Maximum Working Water Temperature: 140° F
  • Hydrostatic Test Pressure: 350 psi

Materials

  • Main Valve Body: Ductile Iron ASTM A 536 Grade 4
  • Access Covers: Ductile Iron ASTM A536 Grade 4
  • Coatings: FDA Approved Fusion Epoxy Finish
  • Fasteners: Stainless Steel, 300 Series
  • Elastomers (Seat Disc): EPDM (FDA approved), Buna Nitrile (FDA approved)
  • Polymers (Seat Ring & Check Valve): NORYL™
  • Springs: Stainless Steel, 300 Series

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 Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California
  • Meets NSF/ANSI/CAN 61* (0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)
  • Lead-Free Compliant

FAQs

What is the primary use of the Wilkins Model 450 Double Check Valve Assembly?

This device is designed for installation on potable water lines to protect against backsiphonage and backpressure of polluted water. It is suitable for low health hazard applications where a potential health hazard does not exist.

Does this model include gate valves?

No, this specific Wilkins Model 450 is a 'Less Gate Valves' configuration. It is designed for use where gate valves are supplied separately or are already existing in your system.

What type of end connections does this backflow preventer have?

The Wilkins Model 450 features flanged end connections, adhering to ANSI B16.42 Class 150 standards. This ensures compatibility with standard flanged piping systems.

What materials are used in the construction of this backflow preventer?

The main valve body and access covers are made of epoxy-coated ductile iron (ASTM A 536 Grade 4) for corrosion resistance. Fasteners and springs are stainless steel, while elastomers include EPDM and Buna Nitrile (FDA approved).

Is this product compliant with lead-free standards?

Yes, the Wilkins Model 450 Double Check Valve Assembly meets the requirements of NSF/ANSI/CAN 61 and is certified lead-free, containing a maximum of 0.25% weighted average lead content.

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