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Improved Listing for VK950 COIN® Sprinkler Eliminates Need for Draft Curtains in Most Applications

Wednesday, January 22, 2020 - 10am



Hastings, Michigan – The Viking Corporation, a global leader in fire protection and life safety systems, has enhanced the cULus Listing for its 5.6 (80) K-factor quick response COIN® sprinkler. The new Listing allows the VK950 upright sprinkler to protect combustible concealed spaces without the use of draft curtains in most applications, making it an ideal replacement for competitive sprinklers that have more stringent and expensive draft curtain requirements.

The new VK950 UL Listing applies when sprinkler spacing is up to 16' X 16' (4,9 m X 4,9 m) for truss construction with top chord member on face (not on edge) for wet or dry systems. The Listing is also applicable when sprinkler spacing is up to 14' X 14' (4,3 m X 4,3 m) for trusses with top chord member on edge or solid wood joists for wet systems. The updated VK950 technical datasheet contains complete design and installation details.

The COIN® VK950 5.6 K-factor Quick Response Upright is a glass bulb sprinkler with a thread size of ½” NPT (15 mm BSPT) and an intermediate temperature rating of 200°F (93°C). Available finishes include brass and an ENT coating for installation in corrosive environments.

To learn more about unique fire protection solutions from Viking, visit or contact your local Viking SupplyNet distribution center.


Viking is a global leader in the manufacture and distribution of innovative fire protection and life safety systems. For nearly 100 years the company’s products and services have protected lives and property worldwide from the devastating effects of fire. For more information on Viking’s complete line of fire protection products and services, please visit or call 800-968-9501.