6 450 DC DI BODY BFLY GRV X GRV

Item Number: 6-450BG
1 1
$19,711.73
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Wilkins
  • Size: 6 inch
  • Model: Zurn 450 Double Check Backflow Preventer
  • Body Material: Ductile Iron
  • End Connections: Grooved x Grooved
  • Shut-off Valves: Butterfly
  • Maximum Working Pressure: 175 PSI
  • Approvals: ASSE 1015, CSA B64.4, IAPMO, AWWA
  • Application: Low health hazard protection

Description

The Zurn 6 inch Model 450 Double Check Backflow Preventer is designed for low health hazard applications, safeguarding potable water systems from backsiphonage and backpressure. Featuring an n-Pattern ductile iron body with grooved butterfly valves, it offers a compact design ideal for new or retrofit installations. Its patented Compound Check ensures reliable performance and low headloss. Constructed with durable materials like stainless steel fasteners and EPDM elastomers, it is ASSE 1015, CSA B64.4, IAPMO, and AWWA C510/C550 listed, providing dependable protection for industrial and commercial plumbing systems.

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Connections

  • The Zurn Model 450 Double Check Backflow Preventer in the 6 inch size is equipped with grooved end connections on both sides.
  • These grooved ends are designed for direct installation into grooved piping systems, typically utilizing grooved couplings for secure and leak-tight connections to steel pipe.
  • The unit also features integrated grooved butterfly shut-off valves for system isolation.
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Additional Details

The Zurn Model 450 Double Check Backflow Assembly with 6 inch grooved butterfly valves is designed to protect potable water supplies from backsiphonage and backpressure of polluted water in low health hazard applications.

This n-Pattern backflow preventer is ideal for new installations and retrofits in compact spaces, featuring a patented Compound Check for reliable performance.

Application

  • Designed for low health hazard applications to prevent backflow of polluted water into potable water supply.
  • Suitable for both new construction and retrofit installations, especially in compact locations.

Features

  • n-Pattern design for compact installations.
  • Patented, center-stem guided Compound Check provides low headloss and reliable performance.
  • Convenient single access cover to reduce maintenance downtime.
  • Includes grooved butterfly shut-off valves for isolation.

Materials

  • Main 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

Standards & Approvals

  • ASSE® Listed 1015
  • IAPMO® Listed
  • CSA B64.4
  • AWWA C510 and C550
  • UL Classified
  • FM Approved

Specifications

General

  • Model: 450
  • Size: 6 inch
  • Configuration: Double Check (DC)
  • Valve Type: Butterfly Valves (BG)
  • End Connections: Grooved (for steel)
  • n-Pattern: Yes

Performance

  • Maximum Working Pressure: 175 PSI
  • Hydrostatic Test Pressure: 350 PSI

Materials of Construction

  • Body Material: Ductile Iron (ASTM A 536 Grade 4)
  • Access Covers: Ductile Iron (ASTM A 536 Grade 4) with FDA Approved Fusion Epoxy Finish
  • Fastener Material: Stainless Steel, 300 Series
  • Elastomer Material: EPDM (FDA approved)
  • Polymer Material: NORYL™
  • Spring Material: Stainless Steel, 300 Series

Certificates & Approvals

  • ASSE® Listed 1015
  • IAPMO® Listed
  • CSA B64.4
  • AWWA C510
  • AWWA C550
  • 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

FAQs

What type of backflow protection does the Zurn Model 450 provide?

The Zurn Model 450 is a Double Check Backflow Assembly, designed to protect potable water supplies from pollution caused by backsiphonage and backpressure in low health hazard applications.

What kind of end connections does this 6-inch Model 450 have?

This specific Zurn Model 450 unit features 6 inch grooved end connections, designed for compatibility with grooved piping systems. It also includes grooved butterfly shut-off valves.

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

The main valve body and access covers are made from ductile iron (ASTM A 536 Grade 4) with an FDA approved fusion epoxy finish. Fasteners and springs are stainless steel, and elastomers are EPDM (FDA approved).

What is the maximum operating pressure for the Zurn Model 450?

This Zurn Model 450 Double Check Backflow Preventer has a maximum working pressure of 175 PSI. It also has a hydrostatic test pressure of 350 PSI.

Is this backflow preventer certified by industry standards?

Yes, the Zurn Model 450 is extensively certified, including ASSE® Listed 1015, IAPMO® Listed, CSA B64.4, AWWA C510, AWWA C550, UL Classified, and FM Approved.