|Brand||Tyco HD fire|
|Temperature Rating||57 Degree C|
|K-FACTOR (Discharge Rate)||5.6 US (80 metric)|
|Thread Size||1/2 NPT|
Preaction systems are designed to protect water-sensitive areas such as freezers, museums, computer rooms, and clean rooms
. These locations contain water-sensitive equipment, precious objects, or are sensitive areas where accidental water discharge is undesirable. Preaction systems may take the place of dry systems.