The Reliable Automatic Sprinkler Co., Inc., 103 Fairview Park Drive, Elmsford, New York 10523
Model F1FR Series
Quick Response
Standard Spray
Bulletin 014 Rev. L
Bulletin 014 Rev. L
Model F1FR56 Sprinkler Types
Standard Upright
Standard Pendent
Conventional
Vertical Sidewall
Horizontal Sidewall
Model F1FR56 Recessed Sprinkler Types
Standard Pendent/F1/F2/FP
Horizontal Sidewall
Model F1FR56 Concealed Sprinkler Types
Standard Pendent
Model F1FR42, F1FRXLH & F1FR28 Sprinkler
Types
Standard Upright
Standard Pendent
Model F1FR42, F1FRXLH & F1FR28 Recessed
Sprinkler Types
Standard Pendent
Model F1FR56LL & F1FR42LL Low Lead Sprinkler
Types*
Standard Pendent
Less than 0.25% Lead Content
Listing & Approvals
1. Underwriters Laboratories Inc. and Certified for
Canada (cULus).
2. Factory Mutual Approvals (FM)
3. Loss Prevention Council (LPCB, UK)
4. VdS Schadenverhütung GmbH
5. *NSF Certified to NSF/ANSi Standard 61 Annex G
6. EC Certificate: 0786-CPD-40239 (RA1414), 0786-
CPD-40251 (RA1425), 0786-CPD-40252 (RA1475)
UL Listing Category
Sprinklers, Automatic & Open (VNIV)
Quick Response Sprinkler
Product Description
Reliable Models F1FR56, F1FR56LL, F1FR42, F1FR42LL,
F1FRXLH & F1FR28 Series Sprinklers are quick response
sprinklers which combine the durability of a standard sprin-
kler with the attractive low profile of a decorative sprinkler.
The Models F1FR56, F1FR56LL, F1FR42, F1FR42LL,
F1FRXLH & F1FR28 Series Recessed automatic sprinklers
utilize a 3.0 mm frangible glass bulb. These sprinklers have
demonstrated response times in laboratory tests which are
five to ten times faster than standard response sprinklers.
This quick response enables the Model F1FR56, F1FR56LL,
Pendent Conventional
Recessed
Pendent/F1/F2
Upright
Vertical Sidewall Horizontal Sidewall
Recessed
Horizontal Sidewall
Recessed
Pendent/FP
Concealed
Pendent
XLH Upright XLH Pendent
XLH Recessed
Pendent F1/F2
XLH Recessed
Pendent FP
F1FR42, F1FR42LL, F1FRXLH &
F1FR28 Series sprinklers to apply wa-
ter to a fire much faster than standard
sprinklers of the same temperature rat-
ing.
The glass bulb consists of an accu-
rately controlled amount of special fluid
hermetically sealed inside a precisely
manufactured glass capsule. This glass bulb is specially
constructed to provide fast thermal response.
At normal temperatures, the glass bulb contains the fluid
in both the liquid and vapor phases. The vapor phase can
be seen as a small bubble. As heat is applied, the liquid
expands, forcing the bubble smaller and smaller as the liq-
uid pressure increases. Continued heating forces the liquid
to push out against the bulb, causing the glass to shatter,
opening the waterway and allowing the deflector to distrib-
ute the discharging water.
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