Zurn Wilkins 3-350 3" Double Check Valve Assembly (DCVA) Non-Rising Stem Lead-Free

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Description

Zurn Wilkins 3-350 3" Double Check Valve Assembly (DCVA) Non-Rising Stem Lead-Free

Zurn Wilkins 3-350 3" Double Check Valve Assembly (DCVA) Non-Rising Stem Lead-Free.

Overview:

Designed for installation on potable water lines to protect against both backsiphonage and backpressure of polluted water into the potable water supply. The Model 350 shall provide protection where a potential health hazard does not exist. Ideal for use where lead-free* valves are required.

Standards Compliance (Horizontal & Vertical):

  • ASSE® Listed 1015
  • AWWA Compliant C510 (with gates only), and C550
  • IAPMO® Listed
  • Certified to NSF/ANSI 372* by IAPMO R&T
  • CSA® Certified
  • 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 Southern California
  • NSF® Listed-Standard 61, Annex G* *(0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)

Materials:

Main Valve Body: Ductile Iron ASTM A 536 Grade 4
Access Covers Ductile Iron ASTM A 536 Grade 4
Coatings: FDA Approved electrostatic epoxy finish
Internals: Stainless steel, 300 Series NORYL™, NSF Listed
Fasteners & Springs: Stainless Steel, 300 Series Seal ring EPDM (FDA approved)
O-ring: Buna Nitrile (FDA approved)


Features:

Sizes: 2-1/2", 3", 4", 6", 8", 10"
Max. Water Pressure: 175 PSI
Max. Water Temp.: 140° F
Hydrostatic Test Pressure: 350 PSI
End Connections: (Grooved for steel pipe) AWWA C606
(Flanged) ANSI B16.1 Class 125


    Typical Installation:

    Local codes shall govern installation requirements. Unless otherwise specified, the assembly shall be mounted at a minimum of 12" (305mm) and a maximum of 30" (762mm) above adequate drains with sufficient side clearance for testing and maintenance. The installation shall be made so that no part of the unit can be submerged.

    Technical Documentation:

    Zurn Wilkins 3-350: Specification Submittal.

    Zurn Wilkins 3-350: Repair Parts.

    Zurn Wilkins 3-350: Installation and Maintenance Instructions.

    Media:

    Zurn Wilkins Model 350 / 350A (2-1/2" and 3") Repair Video:

    Zurn Wilkins, "Why Does Zurn Wilkins Call it a Compound Check", Video:

    Zurn Wilkins Compound Check Removal Video:

    Cross Reference:

    Zurn Wilkins 3-350A 3" Double Check Valve Assembly (DCVA) Non-Rising Stem Lead-Free Crosses:

    • Watts 3-709NRS, 3-LF709NRS, LF709.
    • Conbraco 40-100-02.
    • Febco 805YTD / 850.
    • Ames 2000DCA.

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