Dear All, I am having a problem when choosing in-rack sprinkler head with FM approved, and having the right temperature.
As per FM Global Property Loss Prevention Data Sheets 8-9, March 2010 Interim Revision July 2021, 2.3.4.3 K-Factors, Nominal Temperature Rating, and RTI Rating of In-Rack Storage Sprinklers 2.3.4.3.1 Use nominally rated 160°F (70°C) FM Approved in-rack sprinklers for all in-rack sprinkler installations. I cannot find actual sprinkler head approved by FM and having this rated 160°F (70°C), for example, this model of Viking (bulb type) https://www.approvalguide.com/productDetail?productid=118279 Should I follow NFPA13, Chapter 23 - ESFR Requirements for Storage Applications 23.4.4 Sprinklers shall be intermediate temperature-rated ESFR pendent sprinklers with a nominal K-factor of K-25.2 (360). Checking the Viking ESFR sprinkler head, it seems only the fusible type is ranked as ESFR: Early Suppression Fast Response (ESFR) | Viking Group Inc.<https://www.vikinggroupinc.com/products/viking-fire-sprinklers/storage/esfr-early-suppression-fast-response-sprinklers> But the temperature of Viking ESFR sprinkler head having FM approved is also not rated 160°F (70°C), but 74°C and 96°C FM3007275.PDF (vikinggroupinc.com)<https://www.vikinggroupinc.com/sites/default/files/databook/sprinklers/storage/121aefm.pdf> Please can you advise. Regards, Le Vu Phong [cid:[email protected]] Indochine Engineering Vietnam JSC Unit 12-01 Pearl Plaza 561A Dien Bien Phu Street Binh Thanh District, HCMC, VN Mobile: +84 (0) 902 363 525 Tel: +84 (8) 3512 4100 Fax: +84 (8) 3512 4108 Web: www.indoeng.com<http://www.indoeng.com/> [cid:[email protected]]<http://www.linkedin.com/company/2077231> [cid:[email protected]]<http://www.twitter.com/indoeng_> [cid:[email protected]]<http://www.youtube.com/user/indochineengineering> [cid:[email protected]] phong_indochineengineering
_________________________________________________________ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org To unsubscribe send an email to [email protected]
