Trimpac® Model B-5 & B-5B Double Interlock Pre

The Viking Trimpac Model B-5 and B-5B Double Interlock Preaction Systems provide reliable fire protection designed for commercial environments where accidental water damage must be minimized, such as data centers, museums, and archival rooms. Installed within specialized preaction fire suppression assemblies, this system manages water release by requiring dual activation from both the fire detection system and the automatic sprinkler heads before water discharges into the piping network.

This preaction trim package satisfies rigorous life safety criteria, including compliance with NFPA 13 standards for the installation of sprinkler systems. The double interlock mechanism specifically addresses code requirements for water-sensitive areas by eliminating unintended water discharge caused by false alarms or damaged sprinkler heads, fulfilling strict insurance mandates and regulatory guidelines for critical asset protection.

• Double Interlock Mechanism: Discharges water only when both the fire detection system and sprinkler heads activate to prevent false alarms.
• Durable Construction: Crafted from high-grade materials and corrosion-resistant alloys to withstand challenging environmental conditions.
• Release Compatibility: Supports both electric and pneumatic release mechanisms for seamless integration with diverse fire alarm layouts.
• Monitoring Interface: Features easy-to-read pressure gauges and status indicators to simplify system monitoring and routine maintenance.

Contractors and facility managers must verify all local Authority Having Jurisdiction (AHJ) mandates and consult the manufacturer's technical data sheets prior to system installation and commissioning.

Documentation: Download Manufacturer Technical Data & Cut Sheet (PDF)