Reliable DH80 Dry Manual

Coverage up to 28 feet wide and 14 feet long
Features:
1. cULus Listed as Quick-response for Light Hazard appli-
cations only.
2. Available with a Standard, Model HB (extended), or Mod-
el FP (recessed) escutcheon, as well as the Model SWC
(concealed) cover plate.
3. Sprinkler available in lengths up to 36" (900 mm) in 1/4" (6
mm) increments (see Fig. 4-7).
4. Listed deflector to ceiling distance of 4" (102 mm) min. to
12" (305 mm) max.
5. Minimum spacing between sprinklers of 14 feet (4.3 m).
6. Sprinkler available in white or black polyester, chrome,
and bronze standard finishes as well as custom color
polyester and Electroless Nickel PTFE (ENT) special ap-
plication finishes.
7. White polyester, black polyester, and ENT finish sprinklers
are cULus Listed as Corrosion Resistant (not applicable
to concealed sprinklers).
See Fig. 9.
(1)
Approval Organizations
1. Listed by Underwriters Laboratories Inc. and
UL certified for Canada (cULus) as a quick-response ex-
tended coverage sprinkler for Light Hazard occupancies.
Patents
US Patent No. 7,841,418
Products Description
The Model DH80 Dry sprinkler is a quick-response extend-
ed coverage horizontal sidewall sprinkler for use in Light
Hazard applications. The sprinkler has a nominal K-Factor
of 8.0 (115 metric). The sprinkler is designed with a spray
pattern that is cULus Listed to provide a coverage of 28 feet
(8.5 m) along the wall where the sprinkler is installed and
projecting 14 feet (4.3 m) from the wall where the sprinkler is
installed, as shown in Fig. 9.
The Model DH80 Dry sprinkler is available with a standard
escutcheon (Fig. 4), a Model HB extended escutcheon (Fig.
5), a Model FP recessed escutcheon (Fig. 6), or a Model
SWC cover plate (Fig. 7). The can or cup, used to mount the
escutcheon or cover plate, is factory installed. The Model
FP escutcheon and Model SWC cover plate are the only re-
cessed escutcheon and cover plate, respectively, listed for
use with the Model DH80 Dry sprinkler.
Model DH80 Dry sprinklers are available in nominal lengths
up to 36" (900 mm). Dimensional information for Model DH80
Dry sprinklers is provided in Figures 4 through 7, depending
on the escutcheon or cover plate option selected.
The sealing washer in the Model DH80 Dry sprinkler is lo-
cated at the inlet end of the sprinkler assembly. The posi-
Model DH80 Dry (SIN RA5532)
K8.0 (115 metric)
Extended Coverage
Horizontal Sidewall Sprinkler
(1)
.
Model DH80 Dry sprinkler with Standard escutcheon
Model DH80 Dry sprinkler with Model HB escutcheon
Model DH80 Dry sprinkler with Model FP recessed escutcheon
Model DH80 Dry sprinkler with Model SWC cover plate
tion of the sealing washer is controlled by a fluid-filled glass
bulb thermal element at the opposite end of the sprinkler as-
sembly. When installed on a wet-pipe sprinkler system in ac-
cordance with Fig. 1, the Model DH80 sprinkler is installed
with the thermal element in a protected space that may be
subject to freezing temperatures and the inlet orifice located
in a heated area that is separated from the protected space.
Model DH80 sprinkler may also be installed on dry-pipe
and preaction sprinkler systems. Operation of the sprinkler's
thermal element allows the sealing washer to move out of
the inlet orifice admitting water from the supply piping. Ma-
terial Specifications for the Model DH80 Dry sprinkler are
provided in Fig. 10.
Bulletin 055
(See Fig. 4)
(See Fig. 5)
(See Fig. 6)
(See Fig. 7)