Technical data

1.6 PrePak & DryPak
Reliable PrePaK Preaction and DryPak Low Pressure Dry systems are completely self-contained riser assem-
blies that can be readily installed within a small floor space. These cabinet mounted systems are substantially
smaller and lighter than other manufacturer’s systems and will fit through a standard 30” wide door. Instal-
lation of the units requires three piping connections: a supply line in, a system line out, and a drain line out.
Locations of these connections are detailed in the appropriate product bulletins.
All internal electrical devices are factory wired and tested. Where applicable, an optional release panel can be
mounted in the cabinet door. Reliable PrePaK Preaction Systems utilize the Potter Model PFC-4410 Releasing
Control Panel. This fully programmable, microprocessor-based releasing panel is Underwriters Laboratories,
Inc. listed and complies with NFPA 13 and NFPA 72. All device and release panel terminals are translated to
two watertight terminal boxes inside the cabinet. Low voltage and line voltage field connections are made
to these terminal boxes. Separate 120 VAC electrical connections are required for the release panel and air
compressor when so equipped.
The Reliable PrePaK or DryPak System enclosure is powder-coated rustproof black on the exterior and white
on the interior for improved visibility. Each 12 gauge steel cabinet contains the following components:
• Main system control valve, either:
— 1½” (40mm) Model H Deluge Riser As-
sembly (PrePak only), or
— 2” (50mm), 2½” (65mm), 3” (80mm), 4”
(100mm), or 6” (150mm) Model DDX
Deluge Valve (PrePak & DryPak)
• One Reliable Pressure Maintenance Device
• One Tank-Mounted Air Compressor (optional)
• One Potter Model PFC-4410 Fire Alarm/Re-
leasing Panel (PrePak only; optional)
• All required piping, fittings, gauges, electrical
connectors, and electrical devices to utilize
the system in single interlock, double-inter-
lock, or low pressure dry system applications
PrePaks and DryPaks are designed, manufac-
tured, assembled and tested by Reliable in Lib-
erty SC, USA. Operation and application of the
various systems has been previously described
in this bulletin.
Approvals and technical data for Model DDX Pre-
Pak Preaction Systems can be found on Reliable
Automatic Sprinkler Company Bulletins 733, 740,
& 747. Approvals and technical data for Model H
PrePak Preaction Systems can be found on Reli-
able Automatic Sprinkler Company Bulletin 723.
Approvals and technical data for Model DDX
DryPak Low Pressure Dry Systems can be found
on Reliable Automatic Sprinkler Company Bulletin
748.
22.
Figure 21