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Introducing the First Ever “Flat Plate Concealed” Residential Sidewall Sprinkler

Friday, May 21, 2010

Hastings, MI, USA – Viking Corporation, a global leader in fire protection and life safety systems, has announced the availability of a new 4.0 (58) K-factor residential, flat plate concealed, horizontal sidewall sprinkler. The innovative “Freedom®” VK480 sprinkler represents a significant advancement in residential fire sprinkler technology. For the first time, the installation advantages of a horizontal sidewall sprinkler are available fully concealed behind a flat cover plate in a residential application.

One method of protecting a residential sprinkler system from freezing conditions is to install the piping network in the interior wall spaces. The VK480 provides this installation option with a true, flat plate, concealed appearance. Using the VK480’s special installation pipe guide, the new sprinkler easily installs into a standard 2 x 4” stud wall. The pipe guide, which is shipped standard with the sprinkler at no additional charge, ensures the proper location of the sprinkler to allow for ¼” (6 mm) adjustment of the cover plate. Additionally, to make certain the sprinkler is correctly oriented with the ceiling, both the sprinkler body and the installation wrench are marked “TOP.”

This new patent-pending sprinkler is cULus listed for up to 16 x 18 ft (4.9 x 5.5 m) coverage areas. The VK480 has a temperature rating of 165°F (74°C) with a 135°F (57°C) cover plate. The cover plate’s standard finish is white. Through Viking’s industry-leading custom paint program, Viking can apply virtually any brand and type of paint to the cover plate as well.

Viking is a global leader in the manufacture and distribution of innovative fire protection and life safety systems. For nearly 90 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 quality fire protection products and services, please visit or call 800-968-9501.