What Is FireFlex® DUAL and When Do You Need Both Clean Agent and Sprinklers?

FireFlex® DUAL is a combined fire protection system with two layers of defense in one coordinated package. First, it releases clean agent to suppress the fire without water damage. If the fire continues or reignites, the integrated preaction sprinkler system provides backup.

You should choose FireFlex® DUAL when you need to protect water-sensitive assets but also want the reassurance of sprinkler backup. It is especially useful in mission-critical spaces where business continuity and loss reduction are both priorities.

The main options mean:

• Single interlock DUAL: choose this when you want preaction piping to fill after detection, with water discharge only after a sprinkler opens.
• Double interlock DUAL: choose this when you want even stronger protection against accidental water entry into the piping.

Its added value is layered protection. A clean agent system alone is excellent for rapid, residue-free suppression, but DUAL adds sprinkler redundancy if the fire grows beyond the clean agent event. If you want both equipment protection and backup water-based security, FireFlex® DUAL is the right product to evaluate.