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Viking Expands Attic Sprinkler Line with New 5.6 K-Factor Hip and Upright Sprinklers

Wednesday, August 30, 2017 - 10am


Hastings, Michigan, USA – The Viking Corporation, a global leader in the design and manufacture of fire protection systems, announces the availability of two new attic sprinklers;  the VK660 Model V-HIP and the VK697 5.6K Attic Upright models.  These new cULus Listed Specific Application Attic Sprinklers provide enhanced fire protection for sloped attics, allowing these challenging spaces to be protected using less water and far fewer sprinklers, branch lines, and associated material.

The new 5.6 K-factor Model V-HIP Attic Sprinkler (VK660) is specifically engineered to protect the hip area of an attic by spraying water in a 90° pattern down the attic slope toward the eaves.  The VK660 is installed along the hip ridge and features a 6 x 28 ft. maximum coverage area (measured horizontally).

The Model VK697 5.6K Attic Upright Sprinkler is intended for use with Viking’s V-BB (back-to-back), V-SD (single directional), and V-HIP Attic Sprinklers.  When used in combination with the 8.0 K-factor Model V-BB sprinkler, the new VK697 can increase the allowable roof span from 60 to 80 ft.  Additionally, the larger 5.6 K-factor allows for the use of black steel pipe in dry systems, as opposed to more expensive galvanized piping that is required with a 4.2 K-factor sprinkler.

Viking Attic Sprinklers can be installed with either steel or CPVC piping (CPVC allowed on wet systems only).  Additionally, they allow for CPVC to be used to protect the floor below, which is prohibited when standard spray sprinklers are installed in an attic. The VK660 and VK697 sprinklers, and all Viking Attic Sprinklers, feature a 200°F glass bulb operating element and are available in either a standard brass finish or Electroless Nickel PTFE (ENT) plating for environments where corrosion is a concern. Technical specifications for the entire Viking line of sprinklers for attic and combustible interstitial spaces can be found at


Viking is a global leader in the manufacture and distribution of innovative fire protection and life safety systems.  For nearly 100 years the company’s products and services have protected lives and property worldwide from the devastating effects of fire.  For more information on Viking’s complete line of fire protection products and services, please visit or call 800-968-9501.