Reliable DH56 HSW Manual

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).
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
See Fig. 9.
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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.
*DuPont Registered Trademark
Model DH56 HSW
Model DH56 HSW Recessed
Model DH56 HSW Concealed
Quick Response,
Extended Coverage Dry Sprinklers
(1)
)*
®
DH56 HSW/HB (See Fig. 5)
DH56 HSW FP Recessed (See Fig. 6)
with SWC coverplate (See Fig. 7)
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.
Bulletin 016
DH56 HSW (See Fig. 4)
DH56 HSW Concealed
H
Rev.