Single Interlock Preaction System

The operation of single interlock systems are similar to dry systems except that these systems require a “preceding” fire detection event, typically the activation of a heat or smoke detector, takes place prior to the “action” of water introduction into the system’s piping by opening the pre-action valve, which is a mechanically latched valve (i.e., similar to a deluge valve)

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Key Points:

  • Nominal Size : 50, 80, 100, 150 & 200 NB
  • Maximum Working Pressure : 250 PSI

Data Sheets:

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