ABSTRACT

Coffee Break Training: Automatic Sprinklers: Sprig Supports   [open pdf - 256KB]

"This 1-inch upright is known as a 'sprig' which is defined in National Fire Protection Association (NFPA) 13, 'Standard for the Installation of Sprinkler Systems' as 'a pipe that rises vertically and supplies a single sprinkler.' For years, there was no requirement in the standard for restraining sprigs against lateral movement, regardless of the pipe's length. When a sprinkler (especially an upright sidewall sprinkler) at the top of an unrestrained sprig operated, the kinetic reaction forces created the potential for the pipe to move in the opposite direction and the sprinkler discharge could be displaced from its intended pattern."

Report Number:
Coffee Break Training - Fire Protection Series No. FP-2009-20
Publisher:
Date:
2009-05-19
Series:
Copyright:
Public Domain
Retrieved From:
United States Fire Administration: http://www.usfa.fema.gov/
Format:
pdf
Media Type:
application/pdf
URL:
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