8 450 DC DI BODY BFLY GRV X GRV

Item Number: 8-450BG
1 1
$33,869.53
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Wilkins
  • Size: 8 inch
  • End Connections: Grooved
  • Body Material: Epoxy-coated Ductile Iron
  • Maximum Working Pressure: 175 PSI
  • Maximum Working Temperature: 140 °F
  • Features: Patented Compound Check, single access cover
  • Design: n-Pattern for compact installation
  • Approvals: ASSE® Listed 1015, CSA B64.4

Description

The Zurn Wilkins Model 450 Double Check Backflow Assembly is an 8-inch device designed to protect potable water supplies from pollution due to backsiphonage and backpressure in low health hazard applications. It features a durable epoxy-coated ductile iron body, grooved end butterfly valves with supervisory switches, and a patented Compound Check for reliable performance and low headloss. The compact n-Pattern design allows for easy installation in confined spaces, making it suitable for both new and retrofit projects. It is ASSE® Listed 1015 and CSA B64.4 approved. Item number 8-450BG.

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Connections

This Zurn Wilkins Model 450 backflow preventer features grooved end connections and is supplied with butterfly valves with integral supervisory switches. It is designed to be installed with compatible grooved pipe and couplings, allowing for efficient and secure system integration.

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Additional Details

The Zurn Wilkins Model 450 Double Check Backflow Assembly provides protection against both backsiphonage and backpressure of polluted water into the potable water supply in low health hazard applications. Its compact n-Pattern design makes it ideal for new and retrofit installations in tight spaces.

Features

  • Compact size ensures easy retrofit applications in tight spaces
  • Patented Compound Check offers reliable performance and improved flow characteristics
  • n-Pattern design allows for use in compact enclosures
  • Durable epoxy-coated ductile iron body protects against corrosion
  • Convenient single access cover to reduce maintenance downtime
  • Grooved end butterfly valves with integral supervisory switches

Materials

  • Main Body Valve Body: Ductile Iron ASTM A 536 Grade 4
  • Access Covers: Ductile Iron ASTM A 536 Grade 4 (FDA Approved Fusion Epoxy Finish)
  • Fasteners: Stainless Steel, 300 Series
  • Elastomers: EPDM (FDA approved)
  • Springs: Stainless Steel, 300 Series

Specifications

  • Model: 450
  • Size: 8 inch
  • Application: Low health hazard applications
  • Pattern: n-Pattern
  • Main Body Valve Body: Ductile Iron ASTM A 536 Grade 4
  • Access Covers: Ductile Iron ASTM A 536 Grade 4 (FDA Approved Fusion Epoxy Finish)
  • Fasteners: Stainless Steel, 300 Series
  • Elastomers: EPDM (FDA approved)
  • Polymers: NORYL™
  • Springs: Stainless Steel, 300 Series
  • Maximum Working Water Pressure: 175 PSI
  • Maximum Working Water Temperature: 140 °F
  • Hydrostatic Test Pressure: 350 PSI
  • End Connections: Grooved

Certificates & Approvals

  • ASSE® Listed 1015
  • IAPMO® Listed
  • CSA B64.4
  • AWWA C510 and C550
  • UL Classified
  • C-UL Classified
  • FM Approved
  • NYC MEA 213-90-M VOL 3
  • Accepted by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California
  • Meets all requirements of NSF/ANSI CAN 61* (MAX. WEIGHTED AVERAGE LEAD CONTENT)

FAQs

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

The Zurn Wilkins Model 450 is used to protect potable water supplies from contamination caused by backsiphonage and backpressure, specifically in low health hazard applications.

What type of connections does this 8-inch backflow preventer utilize?

This 8-inch Model 450 backflow preventer comes with grooved end connections, equipped with butterfly valves that have integral supervisory switches for system monitoring.

What are the main materials used in the construction of the Model 450?

The main body and access covers are made from epoxy-coated ductile iron (ASTM A 536 Grade 4). It also features stainless steel fasteners and springs, and EPDM elastomers.

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

The Model 450 has a maximum working water pressure of 175 PSI and a maximum working water temperature of 140 °F.

What key certifications and approvals does the Zurn Wilkins Model 450 hold?

This backflow preventer is ASSE® Listed 1015, IAPMO® Listed, CSA B64.4, AWWA C510 and C550, UL Classified, C-UL Classified, and FM Approved.