11/22/2017
Deluge Systems
• System used for special hazards ▫ Rapid spread is common • Heat sensing operating element removed ▫ Open sprinklers
Fire Protection
▫ Simultaneously discharge water • Deluge valve must be opened ▫ Signaled by fire alarm
Fire Protection: Types of Systems
Glycol Systems
• Glycol or Glycerin in wet sprinkler systems ▫ Anti Freeze • Typically used in facilities exposed to elements • Alternate to glycol: • Heated electric wire around piping ▫ Connected to thermostat ▫ Prevent freezing
Pre Action
Wet
Deluge Glycol
Dry
ESFR
Wet Systems
Dry System
• Water always within piping system • 90% - 95% of buildings • Building types:
• Compressed air within piping system • Air Compressor attached to Valve • Value: ▫ Air keeps water from entering pipe system ▫ Once air escapes compressor cannot keep up • System for buildings under 40° F
▫ Residential ▫ Commercial ▫ Certain Industrial
• Inexpensive • Avoid when: ▫ Buildings storing/using oil products ▫ Heavy electrical load
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