950XL - Double Check Backflow Preventer

950XL - Double Check Backflow Preventer

The 950XL Double Check Backflow Assembly is utilized in low health hazard, non-potable water applications for protection against both backsiphonage and backpressure of polluted water into the potable water supply. The 950XL is a wye pattern, short lay length Double Check Backflow Preventer, and features a maximum working water pressure of 175 psi, hydrostatic test pressure of 350 psi, maximum working water pressure of 180°F, and threaded end connections. It includes corrosion-resistant stainless steel springs, fasteners, and ball valve handles, and replaceable Noryl® seats and silicone seal rings for added convenience.

To view all options, see the Specification Sheet - Model 950XL

Product Resources

Spec Sheets & Install

BIM / 3D Models / 2D Drawings

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Features And Benefits

  • Short lay length, wye pattern, bronze body construction
  • Replaceable Noryl® seats and silicone seal rings
  • Designed for non-health hazards
Zurn Wilkins
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Repair Parts

3/4" - 1" Model 950XL Complete Repair Kit

3/4" - 1" Model Complete with Seats Repair Kit

Ball Valve, Tapped used with 112-850T.

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What are the restrictions for water temperature in back flow devices?

  • ​All Backflow Prevention Assemblies must be rated to a minimum of 140 degrees F.  If a manufacturer desires a higher temperature rating, the Assembly must successfully pass a Thermal Loop test at the requested temperature, and administered by the Approva lAuthority.  Should the Assembly pass the Thermal Loop test, the Assembly can now be rated at the higher temperature.  For information on the temperature rating of any particular Assembly, please visit zurn.com.  The Specification Submittal Sheet for the Assembly in question will show the rated working water temperature for the valve in question.
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