how to Classify the Fire Sprinkler According to Structure

Sealed Sprinkler Head

Sprinkler with Release mechanism.

Opened Sprinkler Head

Sprinkler without Release mechanism.

Classified According to Release mechanism

Glass bulb fire sprinkler

The heat sensitive element in the release mechanism is a glass bulb. When the nozzle is heated, the working fluid in the glass bulb acts so that the bulb explodes and open the sprinkler.

Fusible alloy fire sprinkler

The heat sensitive element in the release mechanism is a fusible alloy. When the nozzle is heated, the fusible element melting and falling off to open the sprinkler.

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