Sprinkler Head Temperature Selection

Select proper temperature rating per NFPA 13 Table 6.2.5.1.

Expected maximum temperature at ceiling level

Distance to nearest heat-producing equipment

NFPA 13 Temperature Ratings

Rating Max Ambient Classification Bulb Color
135-170°F100°FOrdinaryOrange/Red
175-225°F150°FIntermediateYellow/Green
250-300°F225°FHighBlue
325-375°F300°FExtra HighPurple
400-475°F375°FVery Extra HighBlack
500-575°F475°FUltra HighBlack