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The Reliable Automatic Sprinkler Co., Inc.,

 103 Fairview Park Drive, Elmsford, New York 10523

Model SWC 

Concealed Quick Response
Extended Coverage 
Horizontal Sidewall Sprinkler

Bulle

tin 163 Ma

y 2021

Bulletin 163 May 2021

The Sidewall Concealer

®

Coverage to 14 ft. x  26 ft. 
(4.3m x  7.9m). 300 psi (20,7 bar) Rated.
Features:

1.  Tamper resistant cover plate can prevent 

the sprinkler from being used for unintended 
purposes.  No exposed thermal element.

2.  8.0 K Factor.
3.  Sprinkler is approved for both 

175 psi (12,0 bar) and 
300 psi (20,7 bar) applications.

4. 

Quick response, extended coverage performance.

5. 

Push-on/thread-off, sturdy convenient cover plate.

6. 

Factory assembled sprinkler and cup, shipped 
complete with protective cap.

7. 

Sprinkler assembly and cover plate separately packaged.

8. 

½” (13mm) adjustment .

9. 

Utilizes the Model F1FR-300 QREC-9 
Horizontal Sidewall Sprinkler.

10.  Cover plate available in standard white paint, special 

bronze, black paint or flat white finishes.

Approval Organizations

1.  Listed by Underwriters Laboratories Inc. and UL 

certified for Canada (cULus).

2.  NYC MEA 258-93-E

Patents: U.S. Patent No. 6,374,919

Product Description

The Reliable Model SWC Concealed Quick Response Extended 

Coverage Horizontal Sidewall Sprinkler is an attractive, concealed 
sprinkler assembly that utilizes a push-on/thread-off cover plate 
assembly. The assembly is shipped with a protective cap.  

 The Model CCP/HSW cover plate is attached to the skirt using 

135°F (57°C) ordinary temperature classification solder.  The 
sprinkler and cup are easily installed into the sprinkler fitting using the 

Model GFR1 Sprinkler Wrench.  

When the ambient temperature rises, the solder holding the cover 

plate melts, allowing the release of this part and thus exposing the 
sprinkler inside to the rising ambient temperature.

The Model SWC utilizes a 3.0mm frangible glass bulb.  This quick 

response enables the sprinkler to apply water to a fire sooner than 

standard sprinklers of the same temperature rating.

 This sprinkler can handle a maximum service pressure of 300 psi 

(20,7 bar).

Application and Installation

The Model SWC sprinkler is intended for installation in light 

hazard occupancies in accordance with NFPA 13.  This sprinkler is 
especially well-suited for use in student dormitories, hotels, hospitals 
and care facilities, and can be used where the pressure entering the 
sprinkler system is in excess of 175 psi (12 bar).

Model SWC Concealed Horizontal Sidewall sprinklers utilize 

a Model F1FR-300 QREC-9 Horizontal Sidewall Sprinkler with 
a threaded cup which is factory attached to the sprinkler.  The 
assembly is  completed by the installation of the attractive, 135°F 
(57°C) rated Model CCP/HSW push on / thread off cover plate 
assembly.

Apply a PTFE - based thread sealant to the sprinkler threads.  

After a 2

5

/

8

” (67mm) diameter hole is cut in the wall, the sprinkler 

is easily installed with the Model GFR1 Wrench.  When installing 
the sprinkler, the protective cap is removed and the wrench is 
positioned into the sprinkler/cup assembly until the two wrench 
faces engage the wrenching flats on the sprinkler.  The sprinkler 

is then tightened into the pipe fitting.  When inserting or removing 

the wrench from the sprinkler/cup assembly, care should be taken 
to prevent damage to the sprinkler.  DO NOT WRENCH ON ANY 
OTHER PART OF THE SPRINKLER.  The cover plate assembly 
is then pushed onto the cup. Cover plate assemblies provide ½” 
(13mm) of cover adjustment.  Final adjustment is made by turning 
the cover plate clockwise until the skirt flange makes full contact 
with the wall surface.  Cover plate removal requires turning in the 
counter clockwise direction.

Concealed cover plate/cup assemblies are listed only for use 

with specific sprinklers.  The use of any other concealed cover 

plate/cup assembly with the Model F1FR-300 QREC-9 Horizontal 
Sidewall Sprinkler or the use of the Model CCP/HSW concealed 
cover plate assembly on any sprinkler with which it is not 

specifically listed will void all guarantees, warranties, listings and 

approvals.

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