Our Product Line

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.

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.

The NITROGEN-PAC™ SC (Self-Contained) Series is a family of FM Approved nitrogen-based sprinkler corrosion inhibiting systems, providing high-purity dry nitrogen for the interior of preaction and dry sprinkler piping. These units feature a compressor for system fast-fill and nitrogen generation, refrigerated drying of the air for the lowest possible moisture content, and membrane technology for efficient nitrogen generation. The SC Series factory-assembled units save space and shorten installation and commissioning time.

The FM Approved NITROGEN-PAC™ Model SC-W (Self-Contained Wall-Mount) is a part of the SC Series; it is a completely self-contained nitrogen-based sprinkler corrosion inhibiting system. The unit is factory assembled and tested, and is ready for connection to sprinkler system riser(s). The system contains an air compressor, filters, and a membrane device to perform nitrogen separation.

The NITROGEN-PAC™ M (Modular) Series from UNITED Fire Systems is a unique approach to supplying nitrogen for sprinkler systems. The modular concept allows for the choice of components perfectly sized for the application. Many small to mid-sized systems need an engineered system approach for both proper application and cost-effectiveness. The NITROGEN-PAC™ M Series permits our expert designers to choose the components that fit your application—with no compromise of protection or dollars.

The UNITED Fire Systems True Advanced Purge System Model TAP-G3 is designed to automatically purge air from within a dry-pipe or preaction sprinkler system and replace the air with 98% nitrogen from a NITROGEN-PAC™ sprinkler corrosion inhibiting system. The system also automatically samples, analyzes, and displays the percentage of nitrogen within the pipe.

The UNITED Fire Systems STANDPIPE-PAC™ is a fully assembled standpipe supervisory system, including compressor, switches, alarm, and control unit providing one complete zone of standpipe supervision. The STANDPIPE-PAC™ is in compliance with New York City’s Local Law 64 and the Boston Fire Department’s TCM3-51725. All components are mounted on a sturdy wooden backboard, suitable for hanging at a construction or demolition site.

The UNITED Fire Systems STANDPIPE-PAC™ is a fully assembled standpipe supervisory system, including compressor, switches, alarm, and control unit providing one complete zone of standpipe supervision. The STANDPIPE-PAC™ is in compliance with New York City’s Local Law 64 and the Boston Fire Department’s TCM3-51725. All components are mounted on a sturdy wooden backboard, suitable for hanging at a construction or demolition site.

The UNITED Fire Systems CMA-1 is a device for monitoring the possible corrosion inside of a wet or dry sprinkler system piping. The assembly consists of a corrosion probe in a chamber, a pressure switch, an isolation valve, and a drain valve. The corrosion probe keeps pressure from reaching the pressure switch. When corrosion perforates the probe, pressure reaches the pressure switch, actuating a signal and providing early warning of possible corrosion inside the piping. The isolation valve allows replacement of the corrosion probe without depressurizing the entire system, and the drain valve safely vents pressure from the probe chamber.

The FM Approved United Fire Systems Model AR-1 Wet-Pipe Fire Sprinkler System Air Vent is a device for automatically releasing the trapped air from the high point(s) of a wet sprinkler system. Trapped air contains oxygen, which, when combined with water, is the primary cause of internal pipe corrosion. This corrosion can lead to pipe blockage, leaks, and pipe failure. The Model AR-1 Air Vent is installed at the system high point(s). Air is vented until water reaches the internal float valve, which automatically closes the device to prevent water release.

The FM Approved UNITED Fire Systems Pressure Maintenance Device Model NAMD-1 is a device designed to automatically regulate and maintain the flow of air or nitrogen into dry-pipe or preaction sprinkler pipe.  The air or nitrogen pressure flows through a regulator so that upon activation of a sprinkler head, the air or nitrogen pressure will not interfere with the operation of the sprinkler valve or lengthen the time until the piping fills with water.

The UNITED Fire Systems Riser-Mount Air Compressor Model RMAC-LP is a device that automatically provides compressed air for preaction fire sprinkler and dry-pipe fire sprinkler systems. These single phase compressors are equipped with an electric motor, oil-less pump, compressor control pressure switch, relief valve, and bracket kit to mount the device directly onto the sprinkler riser above the preaction or dry-pipe valve. It can also be floor- or wall-mounted.