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VK514 - ESFR Pendent Sprinkler (K28)

VK514 - ESFR Pendent Sprinkler (K28)

Viking Specific Application Early Suppression Fast Response (ESFR) Pendent Sprinkler VK514 incorporates the capability to suppress specific high-challenge fires. The addition of a larger K-Factor allows protection of higher hazard commodities at greater ceiling heights with lower end-head pressures. 

K28.0 sprinklers can provide flexibility of fire protection designs and eliminate the use of in-rack sprinklers when protecting high piled storage of​ certain specified materials up to: UL - 43 ft. (13.1 m) with ceilings up to 48 ft. (14.6 m) and FM - 50 ft. (15.2 m) with ceilings up to 55 ft. (16.8 m) OR 45 ft. (13.5 m) with ceilings up to 50 ft. (15.2 m)

Viking VK514 ESFR Pendent Sprinklers are primarily intended to protect the following types of storage, which tend to produce severe-challenge fires: palletized and solid pile storage and single, double, and portable open rack storage (no open-top containers or solid shelves). The VK514 is listed to utilize a minimum aisle width of 6’-0” (UL - 43’ storage and FM - 45' storage) or 8’-0” (FM - 50’. storage).

SMALL - InstaSeal Compatible Icon




The VK514 is compatible with revolutionary InstaSeal® technology through the addition of new Torque-Assist caps. Look for the compatibility icon to ensure the correct sprinklers are being ordered for a job requiring InstaSeal technology.

Technical Details

K Factor: 

404 metric





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 (ESFR)

Occupancy Type: 


Thread Size: 

1" NPT (25 mm BSP)

Min Spacing: 

Per Standards / Listings

Max Spacing: 

Per Standards / Listings