PREACTION-PAC is a Factory Mutual (FM) approved, fully integrated preaction fire suppression assembly. It includes a preaction valve, compressor, and control panel providing one complete zone of preaction water sprinkler fire protection.

To learn more about the PREACTION-PAC fire suppression assembly, give us a call at 908.688.0300 or contact us online.


All components are contained in two steel enclosures assembled one above the other. The system pressure gauges and the manual release handle are mounted on the front of the lower enclosure. The system detection and control panel is mounted behind a door in the upper enclosure with a clear polycarbonate window allowing visual access to the system indicators. Lockable latches on both doors permit authorized access to all system components. Both enclosures are finished in powder-coat red paint. Gasketing provides sealing of the enclosure doors and knockouts permit easy attachment of external electrical conduits.


  • FM Approved
  • CSFM Listing No. 7080-2143:0100
  • FDNY Certificate of Approval # 6148
  • Fully factory assembled, programmed, and tested
  • No field assembly required
  • Includes detection/control panel and preaction valve
  • Just connect water supply, drain, and field electrical devices
  • Attractive and rugged metal enclosure
  • Easy-to-see gauges on front of enclosure
  • Easy access to the manual release valve
  • Installation drawings available
  • Low and upper water inlet connections
  • Easy-to-follow instructions on enclosure front
  • Space for required spare sprinkler heads and wrench
  • Separate mechanical and electrical enclosures
  • 1-1/2″ through 4″ valve options
  • Addressable or conventional control panel options


  • Saves assembly and programming time
  • Quicker commissioning—just place, connect, and it’s ready
  • Finished appearance allows placement in or near hazard
  • Easy inspection and maintenance
  • Rapid access to manual release handle
  • Up to 636 addressable points on one system
  • Reliable, dependable protection that functions as designed
  • Expert field and in-house technical support


Contact UNITED Fire Systems Today

Give us a call at 908.688.0300 or contact us online to request more information about the PREACTION-PAC system. 


Certifications And Approvals

Data Sheets

Engineering Specifications & Drawings

For .DWG and .DOC versions of these documents, download our Specification Developer


Sales Literature

Technical Notes & Important Info

Warranty Information

Did You Know?
  • If you have a dry standpipe in your structure, can you tell if it’s intact and ready for fire department use? If it’s not, the risk is high.  Be sure – a UNITED Fire Systems STANDPIPE-PAC system will alert you if someone accidentally leaves a valve open or even disassembles a portion of the standpipe inadvertently.