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VK480 - Residential Flat Plate Concealed HSW Sprinkler (K4.0)

Viking's Freedom° Model VK480 4.0 (58) K-factor residential, flat plate concealed, horizontal sidewall sprinkler delivers the installation advantages of a horizontal sidewall sprinkler fully concealed behind a flat cover plate in a residential application. The VK480 is cULus listed for up to 16 x 18 ft (4.9 x 5.5 m) coverage areas with water flow and pressure requirements that are competitive with a standard recessed sidewall sprinkler.

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 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.”

The VK480 has temperature ratings of 165°F (74°C) and 205°F (96°C) with a 135°F (57°C) cover plate.