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VK4880 - Residential Lead Free Concealed Fusible Element Pendent Sprinkler (K3.0)

Viking Freedom® Residential Concealed Pendent Lead Free* Sprinkler VK4880 is a small high-sensitivity solder link and lever residential sprinkler designed for installation on concealed pipe systems where the appearance of a smooth ceiling is desired.  * 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: 

3.0 (43)





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: 

1/2" NPT (15 mm BSP)

Min Spacing: 

8 ft (2,4 m)

Max Spacing: 

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

Documents and Resources

Technical Data Sheets

Product Quick Reference Guides

Approval Certificates