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VK449 Residential Dry Horizontal Sidewall Sprinkler (K4.0)

VK449 Residential Dry Horizontal Sidewall Sprinkler (K4.0)

Viking’s cULus Listed VK449 K4.0 residential dry horizontal sidewall (HSW) sprinkler can be installed in spaces subject to freezing, such as balconies and garages, and supplied from a wet system in a heated area, penetrating the wall to protect the hazard in areas subject to freezing. The VK449 is compatible with a wide range of pipe fittings, making it suitable for a variety of residential piping choices.

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Technical Details

K Factor: 

4.0 (57.7)





Posting Date for Latest Revision: 

April 4, 2023

Part Number: 


VK Number: 


Additional Information: 

NOTICE: The product details indicated below are for general reference only and may vary based on the specific product approval and/or application. Always verify product details with the technical data sheet and consult with the Authority Having Jurisdiction (AHJ).

Max Pressure: 

175 psi (12 bar)

Response Type: 

Fast (Residential)

Occupancy Type: 


Thread Size: 

1" NPT (25 mm BSP)

Min Spacing: 

8 ft. (2,4 m)

Max Spacing: 

16 x 20 ft (4,9 x 6,1 m)

Documents and Resources

Technical Data & Instructions

Residential Sprinklers