Zurn Wilkins 975XL Series Reduced Pressure Principle Assembly Backflow Preventers


Connection Size: 1/4" [8mm] 14-975XL
Price:
Sale price$549.99
Stock:

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Description

 

Zurn Wilkins 975XL Series Reduced Pressure Principle Assembly Backflow Preventers.

Product Overview:

The Zurn Wilkins 975XL Reduced Pressure Principle Backflow Preventer provides high hazard protection for non-potable water applications. The wye pattern, bronze body provides separate access to each check valve and the relief valve for servicing.

Features & Benefits:

  • All Bronze body with corrosion resistant internals
  • Top access checks for easy repair in tight locations
  • Replaceable check and relief valve seats
  • Available Sizes: 1/4", 3/8", 1/2", 3/4", 1", 1-1/4", 1-1/2", 2"

Application:

Designed for installation on water lines to protect against both backsiphonage and backpressure of contaminated water into the potable water supply. The Model 975XL provides protection where a potential health hazard exists.

Standards Compliance:

  • ASSE® Listed 1013
  • IAPMO® Listed
  • CSA® B64.4
  • AWWA Compliant
  • Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California
  • Wye pattern design reduces installation time and costs
  • Easy access to the first check for debris removal reduces maintenance costs
  • Entire backflow preventer serviceable in line
  •  A tried and true design favored by installers worldwide
  •  Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California

Materials:

  • Main Valve Body: Cast bronze ASTM B 584 \
  • Access Covers: Cast bronze ASTM B 584
  • Internals: Stainless steel, 300 Series Elastomers Silicone (FDA approved) Buna nitrile (FDA approved)
  • Polymers: Noryl™, NSF Listed
  • Springs: Stainless steel, 300 series

Features:

  • Sizes: 1/4", 3/8", 1/2", 3/4", 1", 1-1/4", 1-1/2", 2"
  • Maximum Working Water Pressure: 175 psi
  • Maximum Working Water Temperature: 180° F
  • Threaded connections (FNPT): ANSI B1.20.1
  • Hydrostatic Test Pressure: 350 PSI
  • Relief Valve Discharge Port: 
    • 1/4” - 1/2” - 0.38 sq. in.

Typical Installation:

Local codes shall govern installation requirements. To be installed in accordance with the manufacturers’ instructions and the latest edition of the Uniform Plumbing Code. 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 or where relief valve discharge could cause damage.

Technical Downloads:


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