Viking is a proud world leader in the design and manufacturing of life-saving fire sprinklers. The VK480 Residential Flat Plate Concealed HSW Sprinkler is just one of thousands of industry-leading …

Each concealed sidewall head features a brass body and brass deflector. The Sprinkler Identification Number (SIN) is VK480. This is a residential response, standard coverage sprinkler with a maximum …

The VK480 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.

If you are unsure which heads are needed for your application, please contact us before placing your order. Our team will ensure the correct heads are matched to your requirements, minimizing the …

Viking’s Freedom° Model VK480 4.0 (58) K-factor residential, flat plate concealed, horizontal sidewall sprinkler delivers the installation advantages of a horizontal sidewall sprinkler fully concealed behind …

A closed or sealed sprinkler refers to a complete assembly, including the thermosensitive operating element. An open sprinkler does not use an operating element and is open at all times.

Additional part numbers might be available. Please refer to the technical documentation or contact your local Viking sales office for more information.

Sep 2, 2025 · Thread Size: 1/2" NPT K5.8.

When using Viking Residential Concealed Horizontal Sidewall Sprinkler VK480 for systems designed to NFPA 13D or NFPA 13R, apply the listed areas of coverage and minimum water supply …

The VK480 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.