Reliable Automatic Sprinkler Co., Inc.,
103 Fairview Park Drive, Elmsford, New York 10523
Model DH56 HSW
Model DH56 HSW Recessed
Model DH56 HSW Concealed
Quick Response,
Extended Coverage Dry Sprinklers
Bulletin 016
Rev
.
H
Bulletin 016
Rev.
H
For coverages up to 28 feet wide and
10 feet long
(1)
. 250 psi (17,2 bar) rated.
Features:
1. Coverage for long and narrow spaces such as hallways,
corridors, decks and rooms up to 28 feet wide and 10
feet long.
(1)
2. Deflector to ceiling dimensions are:
4” (102mm) min. to 12” (305mm) max.
3. Minimum spacing between sprinklers 16 feet (4.9m).
(1)
4. Polyester Coated or Electroless Nickel PTFE (Teflon
®
)*
Plated Corrosion Resistant Sprinklers.
*Concealed Sprinkler is not corrosion resistance.
5. UL Listed for extended coverage, light hazard applications.
6. 5.6 K Factor.
7. Sprinkler is approved for
250 psi (17,2 bar) applications.
8. Quick response performance.
9. ½” (13mm) adjustment of escutcheon and cover.
10. Concealed cover plate can prevent the sprinkler from being
used for unintended purposes. No exposed thermal element
with the concealed version.
11. Push-on/thread-off sturdy convenient escutcheon for recessed
and cover for concealed.
12. Factory assembled sprinkler & cup, shipped complete with
bulb protector for concealed and FP recessed versions.
13. Sprinkler & cup assembly and escutcheon or cover are
separately packaged.
14. Available in a variety of plated and painted finishes
(1)
See Fig. 9.
Approval Organizations
1. Listed by Underwriters Laboratories Inc. and
UL certified for Canada (cULus)
2. NYC MEA 258-93-E
Patents
US Patent No. 7,841,418
Other Patents Pending
Products Description
The Model DH56 are quick response extended cover-
age sidewall dry sprinklers for use in light hazard applica-
tions. The Model DH56 dry sprinkler with SWC cover plate
is a concealed sprinkler that uses Reliable’s push on/thread
off sidewall cover. This sprinkler has the cup factory mounted
and is shipped with a bulb protector that protects the 3mm
frangible glass bulb during shipping and post installation fin-
ishing operations. The DH56 can be combined in the field
with the FP Escutcheon to make a recessed dry sprinkler.
DH56 HSW Concealed
with SWC coverplate (See Fig. 7)
DH56 HSW (See Fig. 4)
DH56 HSW FP Recessed (See Fig. 6)
DH56 HSW/HB (See Fig. 5)
The SWC cover plate and FP recessed escutcheons have
½” adjustment. The SWC cover plate is attached with 135
& 165 degree solder. In the event of a fire the rising ambient
temperature melts the solder and the cover plate is ejected
away by springs exposing the 3mm frangible glass bulb.
The use of a 3mm bulb allows quick response which enables
the sprinkler to apply water to a fire sooner than standard
response sprinklers of the same temperature rating.
Model DH56 dry sprinklers are intended for use in dry
and preaction systems to protect areas subjected to freez-
ing temperatures and unheated portions inside and outside
buildings. See Fig. 1 for guidelines on using dry sprinklers in
wet systems.
*DuPont Registered Trademark
Содержание DH56 HSW
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