8 350 DC DI BODY, GRV BODY, GRV X GRV, LESS GATE VALVES

Item Number: 8-350AL
1 1
$19,042.05
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Wilkins
  • Valve Size: 8 inch
  • Body Material: Epoxy-coated Ductile Iron
  • End Connections: Grooved inlet and outlet
  • Shut-off Valves: Not included (Less Gate Valves)
  • Maximum Working Pressure: 175 PSI
  • Maximum Working Temperature: 140°F
  • Patented Compound Check for improved flow
  • ASSE® Listed 1015, CSA® Certified B64.5

Description

The Zurn Model 350A 8-inch Double Check Valve Assembly provides essential backflow protection for potable water lines in low health hazard applications. Featuring an epoxy-coated ductile iron body and grooved inlet and outlet connections, this assembly ensures corrosion resistance and easy installation. Its patented Compound Check enhances flow characteristics and reliable performance. Designed for compact setups, this unit comes without integrated shut-off valves, allowing for flexible system integration. It is ASSE® Listed 1015 and meets NSF/ANSI/CAN 61 & 372 lead-free requirements, making it suitable for a wide range of commercial and industrial uses.

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Connections

This Zurn Model 350A Double Check Valve Assembly features 8-inch grooved end connections on both the inlet and outlet sides, designed for connection to grooved steel piping systems. As this model is supplied without integrated shut-off valves, external shut-off valves must be installed upstream and downstream to isolate the assembly for testing and maintenance. Ensure that the existing pipe configuration and material are compatible with grooved connections and the absence of integral shut-off valves.

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Additional Details

The Zurn Model 350A Double Check Valve Assembly with grooved ends is designed to protect potable water lines from backsiphonage and backpressure of polluted water in low health hazard applications. This 8-inch assembly is configured with a ductile iron body and without shut-off valves for compact installation.

Key Features

  • Features a patented Compound Check for reliable performance and improved flow characteristics.
  • Equipped with a single access cover to simplify maintenance and reduce downtime.
  • Epoxy-coated ductile iron body offers superior corrosion resistance.
  • Lightweight design and short lay-length ensure easy and compact installation.
  • Ideal for applications where a potential health hazard does not exist and Lead-Free* valves are required.

Connections

  • This assembly features grooved inlet and outlet connections for steel pipe.
  • Designed for installation without integrated shut-off valves, requiring external shut-off provisions.

Specifications

  • Model: 350A
  • Valve Size: 8 inch
  • Main Valve Body Material: Ductile Iron ASTM A 536
  • Access Covers Material: Ductile Iron ASTM A 536
  • Coating: NSF Approved Electrostatic Epoxy Finish
  • Internals: Stainless Steel, 300 Series, NORYL™
  • Fasteners & Springs: Stainless Steel, 300 Series
  • Seal Ring: EPDM (FDA approved)
  • O-Ring: Buna Nitrile (FDA approved)
  • Maximum Working Water Pressure: 175 PSI
  • Maximum Working Water Temperature: 140°F
  • Hydrostatic Test Pressure: 350 PSI
  • End Connections: Grooved for steel pipe

Certificates & Approvals

  • ASSE® Listed 1015
  • AWWA Compliant C510 (with gates only)
  • AWWA Compliant C550
  • CUPC® Listed
  • CSA® Certified B64.5
  • UL® Classified
  • C-UL® Classified
  • FM® Approved
  • NYC MEA 220-04-M Vol 2 (2 1/2" - 8")
  • Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of California
  • Meets NSF/ANSI/CAN 61 and 372* (LESS THAN 0.25% WEIGHTED AVERAGE LEAD CONTENT)

FAQs

What is the primary application of the Zurn Model 350A Double Check Valve Assembly?

The Model 350A is designed for installation on potable water lines to protect against backsiphonage and backpressure of polluted water where a potential health hazard does not exist.

What type of end connections does this 8-inch assembly feature?

This specific 8-inch Zurn Model 350A features grooved inlet and outlet connections, designed for compatibility with grooved steel piping systems.

Does this Model 350A include shut-off valves?

No, this particular configuration of the Model 350A is supplied "less shut-off valves," meaning external shut-off provisions are required for isolation.

What is the maximum operating pressure and temperature for this backflow assembly?

The maximum working water pressure for the Model 350A is 175 PSI, and the maximum working water temperature is 140°F.

What are the key material components of the Model 350A?

The main valve body and access covers are made of epoxy-coated Ductile Iron ASTM A 536. Internals consist of Stainless Steel and NORYL™, with EPDM and Buna Nitrile seals.

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