Fire sprinkler heads have different heat-sensitive elements and the two main options are a glass bulb and a fusible link fire sprinkler.
Fire Department Operations in Sprinkler-Protected Properties - Fire Engineering: Firefighter Training and Fire Service News, Rescue
Collection of Mather & Platt objects and archives.
Everything you need to know about Fire sprinklers – Fire Fighter Industry
Know a Fire Sprinkler, Like a Boss – Part 1
How Fire Sprinklers Work: Thermal Sensitivity
What Causes a Fire Sprinkler to Activate? The Events That Trip Sprinklers
When is Loading Detrimental to Sprinkler Performance? - Sprinkler Age
Know a Fire Sprinkler, Like a Boss – Part 1
Stream Fusible Link vs. Glass Bulb Sprinkler Heads - What are the Differences? by Mill Brook Fire Protection
Basics in Fire Sprinkler System
Types of Fire Sprinkler Heads - Archtoolbox
What are the Different Types of Fire Sprinkler Heads?
Fire Sprinkler Head Types: Pendents, Uprights, Sidewalls & Concealed
Collection of Mather & Platt objects and archives.