2021.0372.FR0015 Reliable F1FRReliable Automatic Sprinkler Co., Inc., 103 Fairview Park Drive, Elmsford, New York 10523
Model F1FR Series
Quick Response
Glass Bulb Sprinklers Bulletin 014 October 2020Bulletin 014 October 2020
Model F1FR56 Sprinkler Types
Standard Spray Upright
Standard Spray Pendent
Conventional Upright/Pendent
Vertical Sidewall
Horizontal Sidewall
Model F1FR56 Recessed Sprinkler Types
Standard Spray Pendent
Horizontal Sidewall
Model F1FR56 Concealed Sprinkler Types
Standard Spray Pendent
Model F1FR42, F1FRXLH & F1FR28 Sprinkler
Types
Standard Spray Upright
Standard Spray Pendent
Model F1FR40 Sprinkler Types
Standard Spray Pendent
Model F1FR42, F1FR40, F1FRXLH & F1FR28
Recessed Sprinkler Types
Standard Spray Pendent
Model F1FR56LL & F1FR42LL Low Lead Sprinkler
Types
Standard Spray Pendent with less than 0.25% Lead
Content
Listing & Approvals
The following organizations provide Listings or Approvals
for various Model F1FR series sprinklers. See the Design
and Installation table in this Bulletin for information on
specific listings and approvals applicable to each sprin-
kler.
1. Underwriters Laboratories Inc. and Certified for
Canada (cULus) in accordance with ANSI/UL199.
2. FM Approvals (FM)
3. Loss Prevention Certification Board (LPCB)
4. VdS Schadenverhütung GmbH (VdS)
5. Underwriters Laboratories Inc. and Underwriters
Laboratories of Canada Certified for Health Effects
to NSF/ANSI Standard 61 Annex G (ULH)
6. EC Certificate: 0786-CPD-40239 (RA1414), 0786-
CPD-40251 (RA1425), 0786-CPD-40252 (RA1475)
(EC)
7. WaterMark certified. Certificate Number 23347.
(WM)
UL Listing Category
Sprinklers, Automatic & Open (VNIV)
Quick Response Sprinkler
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
Product Description
Reliable Model F1FR series sprinklers
are quick-response automatic sprin-
klers with a glass bulb thermal element.
Model F1FR series sprinklers are Stan-
dard Spray sprinklers, with the excep-
tion of the Model F1FR56 Conventional
sprinkler which is an Old-style/Conven-tional sprinkler.
The Model F1FR Series automatic sprinklers utilize a 3.0
mm frangible glass bulb. These sprinklers have demonstrat-
ed response times in laboratory tests which are five to ten
times faster than standard response sprinklers. This quick
response enables the Model F1FR Series sprinklers to apply
water to a fire faster than standard-response sprinklers of the
same temperature rating.
The glass bulb consists of an accurately controlled amount
of special fluid hermetically sealed inside a precisely man-
ufactured glass capsule. This glass bulb is specially con-
structed to provide fast thermal response.
2.
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.
Model F1FR Series sprinklers provide a wide range of op-
tions where quick-response, glass bulb sprinklers are used:• Pendent, recessed pendent, upright, horizontal
sidewall, and vertical sidewall deflectors• K-factors of 2.8 (40 metric), 4.0 (57 metric), 4.2 (60
metric), and 5.6 (80 metric)• Flush, recessed, and concealed installations
See the Design and Installation Information table in this
Bulletin for information on the approvals and availability of
specific Model F1FR series sprinkler configurations.
Model F1FR Recessed Pendent and Recessed Horizon-
tal Sidewall sprinklers are required to be used with Reliable
Model F1, F2, or FP recessed escutcheons. See the Re-
cessed Escutcheon Data table in this Bulletin for listing and
approval information with each specific Model F1FR series
sprinkler. Model F1 and F2 recessed escutcheons, shown in
Fig. 1 and 3, are a friction fit assembly allowing for 3/4-inch
(19mm) and 1/2-inch (12.7mm) of adjustment, respectively.
Model FP recessed escutcheons, shown in Fig. 2, provide a
1/2-inch (12.7mm) threaded adjustment.
Model F1FR56 Concealed Pendent and Model F1FR56LL
Concealed Pendent sprinklers are required to be used with
Model CCP cover plates. A standard profile Model CCP cov-
er plate is available that provides up to 1/2-inch (12.7mm) of
cover plate adjustment. In addition, a low profile Model CCP
cover plate is also available that provides up to 5/16-inch
(8.0mm) of cover plate adjustment. See the Design and In-
stallation Information and Listed and Approved Temperature
Ratings tables in this Bulletin for further information on ap-
proved cover plate options.
Application
Model F1FR Series sprinklers are intended for use in
accordance with NFPA 13, FM Property Loss Prevention
Data Sheets, and the requirements of the Authority Hav-
ing Jurisdiction. Care must be exercised that the k-factor,
temperature rating, deflector style, and sprinkler type are
in accordance with the requirements of the applicable
design and installation standards. In addition, Model
F1FR Series sprinklers must be used in accordance with
their listings and approvals, as well as the information
provided in this Bulletin.
Installation
Glass bulb sprinklers have orange bulb protectors or pro-
tective caps to minimize bulb damage during shipping, han-
dling and installation. Reliable sprinkler installation wrench-
es are designed to install sprinklers with bulb protectors in
place. Remove the bulb protector at the time when the sprin-
kler system is placed in service for fire protection. Removal
of the bulb protector before this time may leave the bulb vul-
nerable to damage. Remove bulb protectors by undoing the
clasp by hand. Do not use tools to remove bulb protectors.
Model F1FR Series sprinklers must be installed with the
Reliable sprinkler installation wrench identified in the Design
and Installation Information table in this Bulletin. Any other
wrench may damage the sprinkler. A leak tight sprinkler joint
can be obtained with a torque of 8 to 18 lb-ft (11 to 24 N-m).
Do not tighten sprinklers over the maximum recommended
installation torque. Exceeding the maximum recommended
installation torque may cause leakage or impairment of the
sprinkler.
Recessed Sprinklers
Model F1FR Series Recessed sprinklers are to be installed
as shown in Fig. 1, Fig. 2, or Fig. 3, as applicable to the spe-
cific model being installed. The Recessed Escutcheon Data
table in the Bulletin identifies the only recessed escutcheons
that are permitted to be used with each Model F1FR Series
Recessed sprinkler. The use of any other recessed escutch-
eon will void all approvals and negate all warranties.
Concealed Sprinklers
Model F1FR Series Concealed Pendent sprinklers are to
be installed as shown in Fig. 4 or Fig. 5, as applicable to the
selected cover plate. Model F1FR56 Concealed Pendent
and Model F1FR56LL Concealed Pendent sprinklers have
a factory-installed Model CCP cup. A protective cap is in-
stalled at the factory that should remain on the sprinkler until
the sprinkler is installed and should then be reinstalled on
the sprinkler until the cover plate is installed. The concealed
sprinkler assemblies are completed by the installation of a
Model CCP push-on/thread-off cover plate assembly. The
cover plate and sprinkler cup assemblies are joined using
a cover plate skirt with flexible tabs for threaded engage-
ment. A choice of two Model CCP cover plate assemblies
provides either 1/2-inch (13mm) or 5/8-inch (8mm) of cover
adjustment. Do not install Model F1FR Series Concealed
Pendent sprinklers in ceilings which have positive pressure
in the space above.
Model F1FR Series Concealed Pendent sprinklers require a
2-5/8-inch (67mm) diameter hole to be cut in the ceiling. The
Model GFR2 wrench is used to engage the sprinkler wrench-
ing surfaces and to install the sprinkler in the fitting. Remove the
protective cap to install the sprinkler, then reinstall the protective
cap until the cover plate is installed. When inserting or remov-
ing the wrench from the sprinkler/cup assembly, care should be
taken to prevent damage to the sprinkler. Do not wrench any
other part of the sprinkler/cup assembly. Installation is com-
pleted by removing the protective cap from the sprinkler and
pushing the cover plate onto the cup. Final adjustment is made
by hand turning the cover plate until the skirt flange makes full
contact with the ceiling. Cover plate removal requires turning the
cover plate in the counter clockwise direction. After installation,
inspect all sprinklers to ensure that there is a gap between the
cover plate and ceiling and that the four cup slots are open and
free from any air flow impediment to the space above.
Concealed cover plate/cup assemblies are listed only for
use with specific sprinklers. The use of any concealed cover
plate/cup assembly other than the Reliable Model CCP with
Model F1FR56 Concealed Pendent and Model F1FR56LL
Concealed Pendent sprinklers or the use of the Model CCP
Concealed cover plate assembly on any sprinkler with
which it is not specifically listed my prevent good fire pro-
tection and will void all guarantees, warranties, listings and
approvals.
3.
Design and Installation Information
Model
Nominal
K-factor
Nominal
Orifice
Diameter Deflector/
Orientation
Nominal
Sprinkler
Height Installation
Wrench SIN
Listings
and
Approvals
Approval
Notes
US Metric inches mm inches mm
F1FR28 2.8 40 3/8 10
Pendent 2.25 57 W2 RA1411 cULus 2
Recessed Pendent 2.25 57 GFR2 RA1411 cULus 2
Upright 2.25 57 W2 RA1421 cULus 1,2
F1FR40 4.0 57 3/8 10 Pendent 2.25 57 W2 RA1418 VdS
Recessed Pendent 2.25 57 GFR2 RA1418 VdS
F1FR42 4.2 60 7/16 10
Pendent 2.25 57 W2 RA1413 cULus 2
Recessed Pendent 2.25 57 GFR2 RA1413 cULus 2
Upright 2.25 57 W2 RA1423 cULus 1,2
F1FR42LL 4.2 60 7/16 10 Pendent 2.25 57 W2 RA1410 cULus, ULH
Recessed Pendent 2.25 57 GFR2 RA1410 cULus, ULH
F1FRXLH
(F1FR42
with Pintle)
4.2 60 7/16 10
Pendent 2.25 57 W2 RA1413 cULus 2
Recessed Pendent 2.25 57 GFR2 RA1413 cULus 2
Upright 2.25 57 W2 RA1423 cULus 1,2
F1FR56 5.6 80 1/2 15
Pendent 2.25 57 W2 RA1414
cULus, FM,
LPCB, VdS, EC,
WM
1,2,3,4
Recessed Pendent 2.25 57 GFR2 RA1414
cULus, FM,
LPCB, VdS, EC,
WM
1,2,3,4
Concealed Pendent 2.25 57 GFR2 RA1414 cULus,VdS,EC,
WM 5,6
Upright 2.25 57 W2 RA1425
cULus, FM,
LPCB, VdS, EC,
WM
1,2,3,4
"Conventional
(Pendent or Upright)"2.25 57 W2 RA1475 LPCB, VdS, EC,
WM 4
F1FR56LL 5.6 80 1/2 15
Pendent 2.25 57 W2 RA1415 cULus, ULH 1
Recessed Pendent 2.25 57 GFR2 RA1415 cULus, ULH
Concealed Pendent 2.25 57 GFR2 RA1415 cULus, ULH 6
F1FR56 5.6 80 1/2 15
Horizontal Sidewall 2.63 67 W2 RA1435 cULus, FM 1,2,3,7
Recessed Horizontal
Sidewall 2.63 67 GFR2 RA1435 cULus, FM 8
F1FR56 5.6 80 1/2 15 Vertical Sidewall
(Pendent or Upright)2.25 57 W2 RA1485 cULus, FM,
LPCB 1,2,3,9
(1) cULus Listed Corrosion Resistant sprinkler when ordered with available Polyester coating.
(2) cULus Listed Corrosion Resistant sprinkler when ordered with available Electroless Nickel PTFE plating.
(3) Available with FM approved Polyester coating in black or white.
(4) Available with LPCB and VdS approved Polyester coating.
(5) VdS and EC approvals of the F1FR56 Concealed Pendent sprinkler are for 155°F (68°C) temperature rated sprinklers only. VdS approved sprin-
klers must use Norbulb brand glass bulbs with the 1/2-inch (12.7mm) adjustment Model CCP cover plate only.
(6) Model F1FR56 Concealed Pendent and Model F1FR56LL Concealed Pendent sprinklers must be used with Reliable Model CCP cover plates,
available as either standard depth with 1/2-inch (12.7mm) of adjustment or low profile with 5/16-inch (8.0 mm) of adjustment.
(7) cULus Listing of the F1FR56 Horizontal Sidewall sprinkler is for Light and Ordinary Hazard occupancies only. Minimum to maximum deflector to
ceiling distance shall be 4 inches to 12 inches (102mm to 305mm). FM Approval of the F1FR56 Horizontal Sidewall sprinkler is for Light Hazard
occupancies only.
(8) cULus Listing and FM Approval of the F1FR56 Recessed Horizontal Sidewall sprinkler is for Light Hazard occupancies only.
(9) The F1FR56 Vertical Sidewall sprinkler is listed and approved for use only in Light Hazard occupancies. LPCB approval of the F1FR56 Vertical
Sidewall sprinkler is for installation in the Pendent position only.
Technical Data:
Sensitivity: Quick-response
Thread Size: 1/2-inch NPT standard; ISO 7-R1/2 optional
Maximum Working Pressure: 175 psi (12 bar) - 100% Factory tested hydrostatically to 500 psi (34.5 bar)
SIN RA1425, RA1414 & RA1435 cULus listed for 250 psi (17 bar)
4.
Listed and Approved Temperature Ratings
Model Deflector/
Orientation
Ordinary Temp.
Classification
100°F (38°C) Max. Ambient
Temp.
Intermediate Temp.
Classification
150°F (65°C) Max. Ambient
Temp.
High Temp.
Classification
225°F (107°C) Max.
Ambient Temp.
135°F (57°C)
Temp. Rating
155°F (68°C)
Temp. Rating
175°F (79°C)
Temp. Rating
200°F (93°C)
Temp. Rating
286°F (141°C) Temp.
Rating
Orange Bulb Red Bulb Yellow Bulb Green Bulb Blue Bulb
F1FR28
Pendent cULus
Recessed Pendent cULus
Upright cULus
F1FR40 Pendent VdS
Recessed Pendent VdS
F1FR42
Pendent cULus
Recessed Pendent cULus
Upright cULus
F1FR42LL Pendent cULus, ULH
Recessed Pendent cULus, ULH
F1FRXLH
Pendent cULus
Recessed Pendent cULus
Upright cULus
F1FR56
Pendent cULus, FM, LPCB, VdS, EC, WM
Recessed Pendent cULus, FM, LPCB, VdS, EC, WM
Concealed Pendent*cULus, WM cULus,VdS,EC,
WM cULus, WM
Upright cULus, FM, LPCB, VdS, EC, WM
“Conventional
(Pendent or Upright)”LPCB, VdS, EC, WM
F1FR56LL
Pendent cULus, ULH
Recessed Pendent cULus, ULH
Concealed Pendent*cULus, ULH
F1FR56
Horizontal Sidewall cULus, FM
Recessed Horizontal
Sidewall cULus, FM
F1FR56 Vertical Sidewall (Pen-
dent or Upright)cULus, FM, LPCB
* Model F1FR56 Concealed Pendent and F1FR56LL Concealed Pendent sprinklers must be used with Reliable Model
CCP cover plates. For Ordinary Temperature Classification sprinklers use a 135°F (57°C) temperature rated cover
plate. For Intermediate Temperature Classification sprinklers use a 165°F (74°C) temperature rated cover plate.
Recessed Escutcheon Data
Model Deflector/
Orientation
Listed and Approved Recessed Escutcheons
SIN
Model F1
(Fig. 1 & 3)
3/4-inch (19mm)
adjustment
Model F2
(Fig. 1 & 3)
1/2-inch (12.7mm)
adjustment
Model FP
(Fig. 2)
1/2-inch (12.7mm)
adjustment
F1FR28 Recessed Pendent cULus cULus cULus RA1411
F1FR40 Recessed Pendent VdS VdS VdS RA1418
F1FR42 Recessed Pendent cULus cULus cULus RA1413
F1FR42LL Recessed Pendent cULus, ULH cULus, ULH cULus, ULH RA1410
F1FR42XLH Recessed Pendent cULus cULus cULus RA1413
F1FR56 Recessed Pendent cULus, LPCB, VdS,
EC, WM
cULus, FM, LPCB,
VdS, EC, WM cULus, VdS, EC, WM RA1414
F1FR56LL Recessed Pendent cULus, ULH cULus, ULH cULus, ULH RA1415
F1FR56 Recessed Horizontal Sidewall cULus cULus, FM cULus RA1435
5.
Fig. 1
Model F1FR56, F1FR56LL, F1FR42, F1FR40, F1FR42LL, F1FRXLH & F1FR28
Recessed Pendent sprinkler with Model F1 or F2 escutcheon
Fig. 2
Model F1FR56, F1FR56LL, F1FR42, F1FR40, F1FR42LL, F1FRXLH & F1FR28
Recessed Pendent sprinkler with Model FP escutcheon
6.
Fig. 3
Model F1FR56 Recessed Horizontal Sidewall sprinkler with Model F1 or F2 escutcheon
Fig. 4
Model F1FR56/F1FR56LL Concealed Pendent sprinkler with standard depth
1/2-inch (12.7mm) adjustment - Model CCP cover plate
7.
Fig. 5 - Model F1FR56/F1FR56LL Concealed Pendent sprinkler with low profile
5/16-inch (8.0mm) adjustment - Model CCP cover plate
Maintenance
The Model F1FR Series sprinklers should be inspected and
the sprinkler system maintained in accordance with NFPA
25. Do not clean sprinklers with soap and water, ammonia or
any other cleaning fluids. Remove dust by using a soft brush
or gentle vacuuming. Replace any sprinkler which has been
painted (other than factory applied) or damaged in any way.
A stock of spare sprinklers should be maintained to allow
quick replacement of damaged or operated sprinklers.
Finishes (1)
Standard Finishes
Sprinkler Escutcheon Cover plate(1)
Bronze Brass Chrome
Chrome Plated Chrome Plated White
Polyester Coated (4)(5)(6)White Painted
Special Application Finishes
Sprinkler Escutcheon Cover plate(1)
Electroless Nickel
PTFE(7)
Electroless Nickel
PTFE Bright Brass
Bright Brass(3)Bright Brass Black Plating
Black Plated Black Plated Black Paint
Black Paint(2)(6)Black Paint Off White
Off White(2)(6) Off White Satin Chrome
Chrome Dull Chrome Dull
(1) Other finishes and colors are available on special order. Consult the
factory for details. Custom color painted sprinklers may not retain their
UL Corrosion resistance listing. Coverplate custom paint is semi-gloss,
unless specified otherwise.
(2) cULus Listed only.
(3) 200°F (93°C) maximum.
(4) cULus listed “corrosion resistance” applies to SIN Numbers RA1435
(HSW), RA1485(VSW), RA1425 (Upright), RA1414 (Pendent) and
RA1415 (Pendent) in standard black or white. Corrosion resistance in
other polyester colors is available upon request.
(5) FM Approvals finish as “Polyester coated” applies to SIN Number
RA1414, RA1435 and RA1425 in standard black or white.
(6) LPCB and VdS Approved finish applies only to RA1425, RA1414, RA1418
(VdS) and RA1475.
(7) cULus listed Corrosion Resistant
Material Data
Frame: DZR Brass, QM Brass, or Low Lead Brass
Deflector:CDA Alloy 220, 260, or 510
Load Screw\Pintle: CDA Alloy 360 or 544
Cup:CDA Alloy 651 or 693
Washer:Nickel Alloy 440 or 360, coated with PTFE
Adhesive Tape
Bulb:Glass
Ordering Information
Specify:
1. Sprinkler Model: [F1FR28][F1FR40][F1FR42]
[F1FR42LL][F1FRXLH][F1FR56][F1FR56LL]
2. Sprinkler Deflector/Orientation: [Pendent][Recessed
Pendent][Upright][Conventional][Horizontal Sidewall]
[Recessed Horizontal Sidewall][Vertical Sidewall]
3. Sprinkler threads: [1/2-inch NPT][ISO 7-R1/2]
4. Sprinkler Temperature Rating: [135°F (57°C)][155°F
(68°C)][175°F (79°C)][200°F (93°C)][286°F (141°C)]
5. Sprinkler Finish
6. Escutcheon Model: [F1][F2][FP]
7. Escutcheon Finish (where applicable)
8. Cover plate Model: [standard profile CCP 1/2-inch
(12.7mm) adjustment][low profile CCP 5/16-inch
(8.0mm) adjustment]
9. Cover plate Temperature Rating: [135°F (57°C) for use
with Ordinary Temperature sprinklers][165°F (74°C)
for use with Intermediate Temperature sprinklers]
10. Cover plate Finish
Note: When Model F1FR Series Recessed sprinklers are ordered, the
sprinklers and escutcheons are packaged separately.
Reliable Automatic Sprinkler Co., Inc.
(800) 431-1588 Sales Offices
(800) 848-6051 Sales Fax
(914) 829-2042 Corporate Offices
www.reliablesprinkler.com Internet Address
Manufactured by
Recycled
Paper
Revision lines indicate updated or new data.
EG. Printed in U.S.A. 10/20 P/N 9999970300
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 100 years.
• Automatic sprinklers
• Flush automatic sprinklers
• Recessed automatic sprinklers
• Concealed automatic sprinklers
• Adjustable automatic sprinklers
• Dry automatic sprinklers
• Intermediate level sprinklers
• Open sprinklers
• Spray nozzles
• Alarm valves
• Retarding chambers
• Dry pipe valves
• Accelerators for dry pipe valves
• Mechanical sprinkler alarms
• Electrical sprinkler alarm switches
• Water flow detectors
• Deluge valves
• Detector check valves
• Check valves
• Electrical system
• Sprinkler emergency cabinets
• Sprinkler wrenches
• Sprinkler escutcheons and guards
• Inspectors test connections
• Sight drains
• Ball drips and drum drips
• Control valve seals
• Air maintenance devices
• Air compressors
• Pressure gauges
• Identification signs
• Fire department connection
Reliable offers a wide selection of sprinkler components. Following are some of the many
precision-made Reliable products that guard life and property from fire around the clock.
Reliable...For Complete Protection