5401579 - REV B • 11/18 PAGE 1 OF 2
Potter Electric Signal Company, LLC • St. Louis, MO • Phone: 800-325-3936 • www.pottersignal.com
RD13
Residential Riser with Capped
Flowswitch Port
Description
The RD13 Riser (with NPT connectors) is constructed from Listed
CPVC products suitable for re sprinkler services subject to the
limitations and installation requirements of Flameguard® CPVC
pipe and Spears® CPVC ttings. The RD13 Riser incorporates a
connection for a VSR-SG ow switch, gauge, and drain/test valve.
The connection for the VSR-SG owswitch is capped with a union
connection to facilitate the installation and removal of the switch in
conned spaces at a later date.
Installation
1. Using appropriate sealant, thread the female adapter on to the
main water supply. Then glue the riser assembly to the female
adapter. Pipe the drain connection to an adequate drain location
capable of handling the drain discharge. The riser can be mounted
in the horizontal or vertical position. The waterow switch
connection must be located on the top or on the side of the pipe
when installed in the horizontal position. This will prevent debris
from entering the throat of the waterow switch which could
interfere with proper operation.
2. Following CPVC manufacturer’s instructions for preparation and
gluing of CPVC piping systems, glue the main riser to the main
supply line for the sprinkler heads.
Note: All glued connections must be completed and cured before
the owswitch is installed.
3. A thread sealant shall be used in making threaded connections.
Teon® thread tape is the recommended sealant. Some thread
sealants other than Teon thread tape contain solvents or other
materials that may be damaging to CPVC. For other types of
thread sealants, which have been specically investigated and
conrmed to be “System Compatible”, refer to www.spearsmfg.
com. Attach gauge to riser. Apply Teon® tape to male tting of
gauge only. See Fig 1.
Riser Technical Specications
Dimensions See Fig 1
Service Pressure 175 PSI (12,07 BAR) - UL
Environmental
Limitations
Temperature range: 40°F-120°F (4.5°C-49°C)-
UL
Specications subject to change without notice.
Service Use
Automatic Sprinkler NFPA-13
One or two family dwelling NFPA-13D
Residential occupancy up to four stories NFPA-13R
National Fire Alarm Code NFPA-72
British Standard BS9251
Features
• Pre-assembled and pressure tested
• Available in 1”,1 1/4”, 1 1/2”, & 2” nominal pipe size models
• Female adapter ships loose so riser can be installed in a conned
space
• Fits in standard 2 x 4 construction walls
• Easily removable owswitch port cap for installation of VSR-
SG Flowswitch (VSR-SG not included)
• Includes 3 way valve to allow for calibration of pressure gauge
Installation must be performed by qualied personnel and in
accordance with all national and local codes and ordinances.
Do not over-tighten the union nut, hand tighten only. Use of a
wrench may cause damage to the union nut.