Storage Facility Sprinkler features K factor of 22.4 (320).

Press Release Summary:

Available with 165° and 205°F temperature ratings, model VK506 Early Suppression Fast Response (ESFR) pendent sprinkler is intended for use in warehouses and other storage applications. Product is cULus Listed and FM Approved for buildings up to 45 ft high and storage heights up to 40 ft, without use of in-rack sprinklers, and can be installed with deflector located 6–18 in. below ceiling. Featuring fast response fusible element, sprinkler has 1 in. NPT thread size.

Original Press Release:

Viking LaunchesNew "K22 ESFR" StorageSprinkler

Hastings, Michigan, USA – VikingCorporation, a global leader in fire protection and life safety systems, has introduced a new Early Suppression Fast Response (ESFR) pendent sprinkler with a K factor of 22.4 (320) for use in warehouses and other storage applications. The new model VK506 sprinkler uses a fast response fusible element and is approved to protect most common storage materials, including encapsulated and unencapsulated class I-IV commodities as well as expanded and unexpanded plastics.

Viking’s new K22 ESFR is cULus Listed and FM Approved for buildingsup to 45 ft (13,5 m) high and storage heights up to 40 ft (12,2 m),without the use of in-rack sprinklers. The VK506 sprinkler can be installed with the deflector located between 6 and 18 inches (152 - 457 mm) below the ceiling. The sprinkler is also dimensionally shorter than competitive products, which provides for additional flexibility when installing the product.

The new VK506 has a 1 inch NPT (25 mm BSP) thread size and is available in 165°F (74°C) and 205°F (96°C) temperature ratings. With a K Factor of 22.4, the new VK506 provides ESFR storage protection at lower pressures compared to K14 and K17 ESFR sprinklers, and often requires a lower overall water demand when compared to a K25 ESFR sprinkler. As a result, the new VK506 may allow for reduced pipe sizes, smaller storage tanks, and the elimination of a fire pump in many storage applications.

Viking is a global leader in the manufacture and distribution of innovative fire protection solutions. Established in 1921, the company’s products and services are now sold in over 70 countries. For more information on Viking’s complete line of quality fire protection products and services, please visit or call 800-968-9501.

All Topics