MODEL FSC-28B
BraiDED FLEXiBLE
SPriNKLEr CONNECtiON
tECHNiCaL Data
the Viking Corporation, 210 N industrial Park Drive, Hastings Mi 49058
telephone: 269-945-9501 technical Services: 877-384-5464 Fax: 269-818-1680 Email: [email protected]
Form No. F_012213 Rev 14.1
Page 1 of 8
1. DESCriPtiON
Viking Model FSC-28B Braided
Flexible Sprinkler Connections are
complete assemblies intended for in-
stallation into commercial suspended
ceilings with medium to heavy sup-
port tee bars as described in ASTM
C635 and C636. The hose assembly
includes 28 mm diameter corrugated
stainless steel flexible hose with a
braided stainless steel exterior. The
hose assembly includes an inlet nip-
ple 1” NPT or BSPT for attachment
to the sprinkler system branch pip-
ing, a special outlet reducer fitting
with a 1/2” or 3/4” NPT or BSPT
straight or 90º outlet. Also included
is a support bar and brackets, which
secure the complete flex sprinkler
connection assembly to a medium or
heavy duty commercial suspended
ceiling support rail system.
Model FSC-28B Flexi�le Sprinkler Connection
Flexi�le Sprinkler Connection
The support bracket system (see Figure 4) locates and secures the sprinkler in the required position within the ceiling system. The
mounting bracket system and special outlet fittings provide a generous amount of adjustment both laterally and vertically for flush
and precise sprinkler installation.
The brackets must be attached to adequately supported tee bars in accordance with ASTM C635 and C636.
The unique assembly of the Viking Flexible Sprinkler Connection to the piping system and the outlet sprinkler fitting is made with a
slip nut and seal design that allows assembly after forming the flex hose to proper installation shape, and the inlet and outlet end
connections are securely in place. This prevents twisting of the flex sprinkler connection during installation and provides a secure
leak-tight assembly.
The Viking Model FSC-28B Braided Flexible Sprinkler Connection standard available assembly lengths are 39-3/8” (1000mm)
and 59” (1500mm) with a straight outlet fitting and a 1/2” or 3/4” NPT sprinkler connection. Also available on special order are 90°
angle outlet fittings, also available with ½” or ¾” NPT sprinkler connection (refer to Table 1A). Upon special request, Viking Flexible
Sprinkler Connections can be manufactured to 27-9/16” (700mm), 47-1/2” (1200mm), or 71” (1800mm) lengths. Delivery times for
non standard lengths have a standard lead time of 12 weeks.
Viking Flexible Sprinkler Connections provide several installation or retrofit benefits compared to rigid sprinkler connections:
Easy Installation
More efficient manpower
Improved performance and installation quality
Precise and flush sprinkler location
Flexible installation for seismic or vibrating applications
Flexible installation for fast track construction projects
Corrosion-resistant materials
Fewer tools required for installation
Meets NFPA, EN, and LPC guidelines
Approved for use with suspended ceilings with medium- and heavy-duty load grids with Tee bar design per ASTM C635 and 636
2. LiStiNGS aND aPPrOVaLS
FM approved:
FSC-28B
Refer to Design Criteria for FM Approval requirements that must be followed.
Also refer to specific sprinkler technical data pages for sprinkler listings and other technical information.
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