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VK4800 - Residential Flat Plate Concealed HSW Lead Free Sprinkler (K4.0)

VK4800 - Residential Flat Plate Concealed HSW Lead Free Sprinkler (K4.0)

Lead Free Model*: Viking’s Freedom® Concealed HSW Lead Free Sprinkler VK4800 is a residential horizontal sidewall sprinkler that is fully concealed behind a flat cover plate.  The patent-pending sprinkler 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.  The sprinkler is shipped standard with a special pipe guide to facilitate easy installation in a standard 2 x 4" stud space.

* Lead content complies with the definition of ‘Lead Free’ established in the Reduction of Lead in Drinking Water Act (S.3874) endorsed by AWWA’s Water Utility Council, and California Assembly Bill #1953.

Technical Details

K Factor: 






Part Number: 

16207 (cover plate)

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: 

1/2" NPT (15 mm BSP)

Min Spacing: 

8 ft (2,4 m)

Max Spacing: 

16 x 18 ft (4,9 x 5,5 m)