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Piping Products • Water Hammer Arrestors

10P - 11P - Water Hammer Arrestors
FNW 10P - 11P, Water Hammer Arrestors

 10P - 11P
Catalog Spec Sheet Spec Sheet for 10P - 11P MasterSpec log
Tech Guide
Drawings for 10P - 11P — Water Hammer Arrestor Sweat & Male NPT Copper/Brass Construction
PDF drawing DWG drawing -- AutoCAD required to open  *AutoCAD required to open DWG (free download)

Always verify that you have the most recent product specifications
or other documentation prior to the installation of these products.
The FNW water hammer arrestors are engineered devices that provide maintenance-free continuous protection systems against water hammer. Water hammer is a hydraulic shockwave generated within a water distribution system due to a sudden stop in water flow. If allowed to exist for any length of time, water hammer can cause pipes to rattle, is capable of bursting pipe, and damaging other components within the system. When installed properly, there is an unobstructed shock path to the arrestor that is absorbed by a piston driven and isolated cushion of air.

  • cUPC Certified (IAPMO)
  • Max Spike Pressure: 350 PSI
  • Max Static (Working) Pressure: 150 PSI
  • Working Pressure: 60 to 400 PSI
  • Temperature: 33°F to 180°F
  • For Commercial and Residential Systems (non-potable)
  • Designed for Vertical or Horizontal Installation (not to be installed in the inverted position)
  • Can be installed in systems without need for access panels*
  • ASSE 1010 Listed
* Always check local plumbing codes to determine if access panels are required.
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