What is the purpose of a fusible link in sprinkler heads?

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Multiple Choice

What is the purpose of a fusible link in sprinkler heads?

Explanation:
When a sprinkler head uses a fusible link, the element acts as a temperature-sensitive latch that keeps the valve closed until heat from a fire reaches the head’s rated temperature. At that point, the fusible link melts, the valve releases, and water flows from the system through the sprinkler head to suppress the fire. This ensures water is released only in response to heat, not due to pressure changes, air release, or leaking seals.

When a sprinkler head uses a fusible link, the element acts as a temperature-sensitive latch that keeps the valve closed until heat from a fire reaches the head’s rated temperature. At that point, the fusible link melts, the valve releases, and water flows from the system through the sprinkler head to suppress the fire. This ensures water is released only in response to heat, not due to pressure changes, air release, or leaking seals.

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