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For coverages up to 28 feet wide
and 10 feet long
(1)
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 (see figure 1).
2. Deflector to ceiling dimensions are:
4" (102mm) min. to 12" (305mm) max.
3. Minimum spacing between sprinklers 16 feet (4.9m).
4. White polyester, black plyester, and ENT finish sprinklers
are cULus Listed as Corrosion Resistant (not applicable
to concealed sprinklers).
5. 5.6 K Factor.
6. 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
Approval Organizations
•
Listed by Underwriters Laboratories Inc. and
UL certified for Canada (cULus)
Patents
US Patent No. 7,841,418
Products Description
The Model DH56 are quick response extended coverage
sidewall dry sprinklers for use in light hazard applications.
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
finishing operations. The DH56 can be combined in
the field with the FP Escutcheon to make a recessed
dry sprinkler. The SWC cover plate and FP recessed
. 250 psi (17,2 bar)
Model DH56 Dry (SIN RA1664)
K5.6 (80 metric)
Extended Coverage
Horizontal Sidewall Sprinkler
(1)
DH56 HSW FP Recessed
DH56 HSW Concealed
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.
Bulletin 016 December 2021
DH56 HSW
DH56 HSW/HB
with SWC cover plate
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Related Manuals for Reliable DH56
Summary of Contents for Reliable DH56
- Page 1 The Model DH56 are quick response extended coverage sidewall dry sprinklers for use in light hazard applications. The Model DH56 dry sprinkler with SWC cover plate is a escutcheons have ½” adjustment. The SWC cover plate concealed sprinkler that uses Reliable’s push on/thread off is attached with 135 &...
- Page 2 Application Model DH56 dry sprinklers are intended for use in wet, dry, and preaction systems to protect areas subjected to The Model DH56 is a horizontal sidewall dry sprinkler freezing temperatures and unheated portions inside and intended for installation in light hazard occupancies in outside buildings.
-
Page 3: General Installation Instructions
DH56 HSW SWC Concealed Cover Plate Reliable Model DH56 dry sidewall sprinklers may To install the DH56 HSW dry sprinkler with the SWC be installed in ductile or malleable cast iron threaded cover plate as a concealed sprinkler, cut a 2 ”... -
Page 4: Technical Data
Technical Data: Maintenance Model DH56 Quick Response Dry Sprinklers should be Temperature Sprinkler K Factor Maximum inspected and the sprinkler system maintained in accordance Rating Thread Identification Ambient with NFPA 25. Do not remove the factory applied thermally Size Number... - Page 5 Model DH56 Dry Sprinkler with Standard Escutcheon “A” Dim. 2” to 48” (51mm to 1219mm) in 1/4” (6mm) increments for 1” connections Fig. 4 Notes: Finish Combinations: Standard Escutcheon UL Listed as Corrosion Resistant. Sprinkler Escutcheon (2)(3) Escutcheons do not carry corrosion resistant listings.
- Page 6 Model DH56 Dry Sprinkler with HB Escutcheon “A” Dim. 3-1/2” to 36” (89mm to 914mm) in 1/4” (6mm) increments for 1” connections Fig. 5 Notes: Finish Combinations: HB Escutcheon UL Listed as Corrosion Resistant. Sprinkler Escutcheon (2)(3) Escutcheons do not carry corrosion resistant listings.
- Page 7 Model DH56 Dry Sprinkler with FP Escutcheon “A” Dim. 3-1/2” to 48” (89mm to1219mm) in 1/4” (6mm) increments for 1” connections Fig. 6 Notes: Finish Combinations: FP Recessed Escutcheon Cup for FP Recessed is unfinished galvanized steel except Sprinkler Escutcheon (3)(4) electroless nickel PTFE sprinkler uses a stainless steel cup.
- Page 8 Model DH56 Dry Sprinkler with SWC Cover Plate “A” Dim. 3-1/2” to 48” (89mm to1219mm) in 1/4” (6mm) increments for 1” connections Fig. 7 Notes: Finish Combinations: SWC Concealed Cover Plate Cup for SWC Concealed is unfinished galvanized steel. Sprinkler Cover Plate Cover plates do not carry corrosion resistant listings.
- Page 9 Fig. 8...
- Page 10 Fig. 9...
- Page 11 Fig. 11...
- Page 12 The equipment presented in this bulletin is to be installed in accordance with the latest published Standards of the National Fire Protection Association, Factory Mutual Research Corporation, or other similar organizations and also with the provisions of governmental codes or ordinances whenever applicable. Products manufactured and distributed by Reliable have been protecting life and property for over 90 years. Manufactured by Reliable Automatic Sprinkler Co., Inc.
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