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VK458-D - Residential Domed Concealed Pendent Sprinkler (K7.4)

Viking Freedom® Residential Concealed Pendent Sprinkler VK458 is a small high-sensitivity glass bulb residential sprinkler for use with a domed cover assembly.  The sprinkler's larger 7.4 (107) K-factor is well-suited for NFPA 13 residential systems requiring a 0.1 gpm/ft2 design density.  The cover plate is available with several decorative finishes to meet design requirements. The “push-on”, “thread-off” design of the concealed cover plate assembly allows easy installation of the cover plate after the system has been tested and the ceiling finish has been applied. The cover assembly can be removed and reinstalled, allowing temporary removal of ceiling panels without taking the sprinkler system out of service or removing the sprinkler.

Technical Details

K Factor: 

7.4 (107)





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: 

3/4" NPT (20 mm BSP)

Min Spacing: 

8 ft (2,4 m)

Max Spacing: 

20 x 20 ft (6,1 x 6,1 m)

Documents and Resources

Technical Data Sheets


Product Quick Reference Guides

Approval Certificates