How do FIRE SPRINKLERS Work? (slomo)

This shows how fire sprinklers work and just how sensitive and fast they operate when heated up.
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This head was dropped so it was decided it should not be installed. Thank you Darren for donating this.
- NOTE- This video is copyrighted and for some reason a ton of people have stolen it and reuploaded it. I protect my work like a mother bear, and will file a copyright violation report with Youtube every time I see it. (which is automatically detected and reported to me) Just don't do it.
Ok?
Cameras: Casio EXF1 Pro (1200 and 600 FPS)

Видео How do FIRE SPRINKLERS Work? (slomo) канала TAOFLEDERMAUS