Standard Response Concealed Pendent Sprinklers
Viking Standard Response Concealed PendentSprinklers are thermosensitive glass bulb spray sprinklers pre-assembled with athreaded adapter for installation with a domed cover that provides up to ½”(12.7 mm) of vertical adjustment. The cover plate is available with severaldecorative finishes to meet design requirements. The Electroless Nickel PTFE(ENT) finish has been investigated for installation in corrosive atmospheresand is cULus listed as corrosion resistant. The ENT finish is only availablefor the sprinkler assembly, the cover plate is not plated.
The two-piece design allows installation and testingof the sprinkler prior to installation of the cover plate. The “push-on”,“thread-off” design of the concealed cover
plate assembly allows easy installation of the coverplate after the system has been tested and the ceiling finish has been applied.The cover assembly can be removed and reinstalled, allowing temporary removalof ceiling panels without taking the sprinkler system out of service orremoving the sprinkler.
Minimum Operating Pressure: 7 psi (0.5 bar)
Maximum Working Pressure: 175 psi (12 bar). Factory tested hydrostatically to 500 psi (34.5 bar).
Thread Sizes: Sprinkler VK102: 1/2” (15 mm) NPT, Sprinkler VK202: 3/4” (20 mm) NPT
Nominal K-Factors: Sprinkler VK102: 5.6 U.S. (80.6 metric*), Sprinkler VK202: 8.0 U.S. (115.2 metric*)
* Metric K-factor measurement shown is when pressure is measured in Bar. When pressure is measured in kPa, divide the metric K-factor shown by 10.0.
Glass-bulb fluid temperature rated to -65 °F (-55 °C)
Overall Length (sprinkler body): Sprinkler VK102: 2-1/4” (57 mm), Sprinkler VK202: 2-5/16” (59 mm)