Reliable G5 Series User manual

www.reliablesprinkler.com
Model G5 Series Sprinklers Standard Coverage, Concealed Pendent
Available with Solid, Perforated, or Gasket Cover Plate K2.8, 4.2, 5.6, & 8.0 (40, 60, 80, & 115 metric)
Product Features
•Flat concealed cover plate available solid or perforat-
ed in a variety of finishes.
•NEW: Stainless Steel Clad cover plate (see Table H).
•3/4-inch (19 mm) cover plate adjustment.
•Cover plate available with optional gasket.
Product Description
Model G5 series sprinklers are standard coverage, flat
plate concealed sprinklers designed for installation in ac-
cordance with NFPA 13. The sprinklers are offered with a
standard Model G4 cover plate (solid or perforated), a
Model G4 cover plate with a Quick-response (QR) gasket,
or a Model G4 cover plate with a Standard-response (SR)
gasket. Model G5 sprinklers must only be used with the
Model G4 cover plate listed or approved with the sprinkler.
All Model G5 series sprinklers use a fusible-link operating
element. Table A provides a summary of available Model
G5 series sprinklers, along with Listing and Approval in-
formation for each sprinkler and cover plate combination.
Model G5 Series Sprinkler Cover Plates
Model G4 Cover Plate
(Solid)
Model G4 Cover Plate
(Perforated)
Model G4 QR Gasket
Cover Plate
Model G4 SR Gasket
Cover Plate
Model G5 Series Sprinkler Summary
Table A
Sprinkler
Model
K-Factor
gpm/psi1/2
(L/min/bar1/2)
Cover Plate
Model
Listings
and
Approvals
Sensitivity
Max. Working
Pressure
psi (bar)
Sprinkler
Identification
Number (SIN)
G5-28
2.8
(40)
G4
cULus
QR
175 (12) RA3411
FM
SR
G4 QR Gasket
cULus
QR
G4 SR Gasket
cULus, FM
SR
G5-42 4.2
(60)
G4
cULus QR 175 (12) RA3413
G4 QR Gasket
G4 SR Gasket cULus SR
G5-56 5.6
(80)
G4
cULus
QR
250 (17)
RA3415
FM, LPCB, VdS, CE
SR
175 (12)
G4 QR Gasket
cULus
QR
250 (17)
G4 SR Gasket
cULus
SR
250 (17)
FM
SR
175 (12)
G5-56 300
5.6
(80)
G4
cULus QR 300 (21)
RA4014
G4 QR Gasket
G4 SR Gasket
cULus
SR
G5-80
8.0
(115)
G4
cULus QR 175 (12)
RA3412
G4 QR Gasket
G4 SR Gasket
cULus
SR
Bulletin 034 Rev. F June 2016

Bulletin 034 Rev. F Page 2 of 8
June 2016 www.reliablesprinkler.com
Model G5-28 Standard Coverage, Concealed Pendent Sprinkler SIN RA3411
Technical Specifications
Style:
Flat Concealed Pendent
Threads:
1/2” NPT or ISO 7-1 R1/2
Nominal K-Factor:
2.8 (40 metric)
Max. Working Pressure:
175 psi (12 bar)
Material Specifications
Fusible Link:
Beryllium Nickel
Sprinkler Body:
Brass Alloy
Levers:
Bronze Alloy
Yoke:
Brass Alloy
Sealing washer:
Nickel with PTFE
Load Screw:
Bronze Alloy
Towers:
Copper Alloy
Pins:
Stainless Steel
Deflector:
Bronze Alloy
Cup:
Steel
Sprinkler Temperature Ratings
165°F (74°C)
212°F (100°C)
Sensitivity
(See Table B)
Cover Plates
Model G4 (Solid or Perforated)
Model G4 QR Gasket (cULus only)
Model G4 SR Gasket
Cover Plate Finishes
(See Table G)
Sprinkler Wrench
Model FC
Listings and Approvals
cULus Listed (Light Hazard only)
FM Approved
Model G5-28 Sprinkler Components and Dimensions Figure 1
Threads
Body
Cup
Tower
Fusible Link
Deflector (retracted)
Pin (extended)
Deflector (extended)
Model G4 Cover Plate
3/4" (19 mm) Max.
Cover Plate Adjustment
Ceiling
3-5/16" (84 mm) Dia.
2-5/16"
(58 mm)
Dia.
Ceiling
3/16" (5 mm)
Model G5-28 Sprinkler Sensitivity Table B
Cover Plate Model
Listing or Approval Agency
cULus FM
G4 QR SR
G4 QR Gasket QR --
G4 SR Gasket SR SR
QR: Quick-response
SR: Standard-response

Bulletin 034 Rev. F Page 3 of 8
June 2016 www.reliablesprinkler.com
Model G5-42 Standard Coverage, Concealed Pendent Sprinkler SIN RA3413
Technical Specifications
Style:
Flat Concealed Pendent
Threads:
1/2” NPT or ISO 7-1 R1/2
Nominal K-Factor:
4.2 (60 metric)
Max. Working Pressure:
175 psi (12 bar)
Material Specifications
Fusible Link:
Beryllium Nickel
Sprinkler Body:
Brass Alloy
Levers:
Bronze Alloy
Yoke:
Brass Alloy
Sealing washer:
Nickel with PTFE
Load Screw:
Bronze Alloy
Towers:
Copper Alloy
Pins:
Stainless Steel
Deflector:
Bronze Alloy
Cup:
Steel
Sprinkler Temperature Ratings
165°F (74°C)
212°F (100°C)
Sensitivity
(See Table C)
Cover Plates
Model G4 (Solid or Perforated)
Model G4 QR Gasket
Model G4 SR Gasket
Cover Plate Finishes
(See Table G)
Sprinkler Wrench
Model FC
Listings and Approvals
cULus Listed (Light Hazard only)
Model G5-42 Sprinkler Components and Dimensions Figure 2
Threads
Body
Cup
Tower
Fusible Link
Deflector (retracted)
Pin (extended)
Deflector (extended)
Model G4 Cover Plate
3/4" (19 mm) Max.
Cover Plate Adjustment
Ceiling
3-5/16" (84 mm) Dia.
2-5/16"
(58 mm)
Dia.
Ceiling
3/16" (5 mm)
Model G5-42 Sensitivity Table C
Cover Plate Model
Listing or Approval Agency
cULus
G4 QR
G4 QR Gasket QR
G4 SR Gasket SR
QR: Quick-response
SR: Standard-response

Bulletin 034 Rev. F Page 4 of 8
June 2016 www.reliablesprinkler.com
Model G5-56 Standard Coverage, Concealed Pendent Sprinkler SIN RA3415
Technical Specifications
Style:
Flat Concealed Pendent
Threads:
1/2” NPT or ISO 7-1 R1/2
Nominal K-Factor:
5.6 (80 metric)
Max. Working Pressure:
175 psi (12 bar)
250 psi (17 bar) (cULus only)
Material Specifications
Fusible Link:
Beryllium Nickel
Sprinkler Body:
Brass Alloy
Levers:
Bronze Alloy
Yoke:
Brass Alloy
Sealing washer:
Nickel with PTFE
Load Screw:
Bronze Alloy
Towers:
Copper Alloy
Pins:
Stainless Steel
Deflector:
Bronze Alloy
Cup:
Steel
Sprinkler Temperature Ratings
165°F (74°C)
212°F (100°C) (cULus, FM, LPCB, CE only)
Sensitivity
(See Table D)
Cover Plates
Model G4 (Solid or Perforated)
Model G4 QR Gasket (cULus only)
Model G4 SR Gasket (cULus and FM only)
Cover Plate Finishes
(See Table D)
Sprinkler Wrench
Model FC
Listings and Approvals
cULus Listed (Light & Ordinary Hazard only)
FM Approved
LPCB Approved
VdS Approved [165°F (74°C) only]
CE Listed
Model G5-56 Sprinkler Components and Dimensions Figure 3
Threads
Body
Cup
Tower
Fusible Link
Deflector (retracted)
Pin (extended)
Deflector (extended)
Model G4 Cover Plate
3/4" (19 mm) Max.
Cover Plate Adjustment
Ceiling
3-5/16" (84 mm) Dia.
2-5/16"
(58 mm)
Dia.
Ceiling
3/16" (5 mm)
Model G5-56 Sensitivity Table D
Cover Plate Model
Listing or Approval Agency
cULus FM LPCB, VdS, CE
G4 QR SR SR
G4 QR Gasket QR -- --
G4 SR Gasket SR SR --
QR: Quick-response
SR: Standard-response

Bulletin 034 Rev. F Page 5 of 8
June 2016 www.reliablesprinkler.com
Model G5-56 300 Standard Coverage, Concealed Pendent Sprinkler SIN RA4014
Technical Specifications
Style:
Flat Concealed Pendent
Threads:
1/2” NPT or ISO 7-1 R1/2
Nominal K-Factor:
5.6 (80 metric)
Max. Working Pressure:
300 psi (21 bar)
Material Specifications
Fusible Link:
Beryllium Nickel
Sprinkler Body:
Brass Alloy
Levers:
Bronze Alloy
Yoke:
Brass Alloy
Sealing washer:
Nickel with PTFE
Load Screw:
Bronze Alloy
Towers:
Copper Alloy
Pins:
Stainless Steel
Deflector:
Bronze Alloy
Cup:
Steel
Sprinkler Temperature Ratings
165°F (74°C)
212°F (100°C)
Sensitivity
(See Table E)
Cover Plates
Model G4 (Solid or Perforated)
Model G4 QR Gasket
Model G4 SR Gasket
Cover Plate Finishes
(See Table G)
Sprinkler Wrench
Model FC
Listings and Approvals
cULus Listed (Light & Ordinary Hazard only)
Model G5-56 300 Sprinkler Components and Dimensions Figure 4
Threads
Body
Cup
Tower
Fusible Link
Deflector (retracted)
Pin (extended)
Deflector (extended)
Model G4 Cover Plate
3/4" (19 mm) Max.
Cover Plate Adjustment
Ceiling
3-5/16" (84 mm) Dia.
2-5/16"
(58 mm)
Dia.
Ceiling
3/16" (5 mm)
Model G5-56 300 Sensitivity Table E
Cover Plate Model
Listing or Approval Agency
cULus
G4 QR
G4 QR Gasket QR
G4 SR Gasket SR
QR: Quick-response
SR: Standard-response

Bulletin 034 Rev. F Page 6 of 8
June 2016 www.reliablesprinkler.com
Model G5-80 Standard Coverage, Concealed Pendent Sprinkler SIN RA3412
Technical Specifications
Style:
Flat Concealed Pendent
Threads:
3/4” NPT or ISO 7-1 R3/4
Nominal K-Factor:
8.0 (115 metric)
Max. Working Pressure:
175 psi (12 bar)
Material Specifications
Fusible Link:
Beryllium Nickel
Sprinkler Body:
Brass Alloy
Levers:
Bronze Alloy
Yoke:
Brass Alloy
Sealing washer:
Nickel with PTFE
Load Screw:
Bronze Alloy
Towers:
Copper Alloy
Pins:
Stainless Steel
Deflector:
Bronze Alloy
Cup:
Steel
Sprinkler Temperature Ratings
165°F (74°C)
212°F (100°C)
Sensitivity
(See Table F)
Cover Plates
Model G4 (Solid or Perforated)
Model G4 QR Gasket
Model G4 SR Gasket
Cover Plate Finishes
(See Table G)
Sprinkler Wrench
Model FC
Listings and Approvals
cULus Listed (Light & Ordinary Hazard only)
Model G5-80 Sprinkler Components and Dimensions Figure 5
Threads
Body
Cup
Tower
Fusible Link
Deflector (retracted)
Pin (extended)
Deflector (extended)
Model G4 Cover Plate
3/4" (19 mm) Max.
Cover Plate Adjustment
Ceiling
3-5/16" (84 mm) Dia.
2-5/16"
(58 mm)
Dia.
Ceiling
3/16" (5 mm)
Model G5-80 Sensitivity Table F
Cover Plate Model
Listing or Approval Agency
cULus
G4 QR
G4 QR Gasket QR
G4 SR Gasket SR
QR: Quick-response
SR: Standard-response

Bulletin 034 Rev. F Page 7 of 8
June 2016 www.reliablesprinkler.com
Installation Dimensions and Cover Plate Information Table G
Cover Plate
Model
Cover Plate
Diameter
Inch
(mm)
Recommended
Hole Diameter
in Ceiling
Inch
(mm)
Cover Plate
Adjustment
Inch
(mm)
Min. to Max.
Face of Fitting
to
Ceiling(1)
Inch
(mm)
Min. to Max.
Dropped
Deflector
Distance
below Ceiling
Inch
(mm)
Cover Plate
Temperature
Rating
°F
(°C)
G4(2)
3-5/16
(84)
2-5/8
(67)
3/4
(19)
1-1/2 to 2-1/4
(38 to 57)
1/4 to 1
(6 to 25)
135°F(4)
(57°C)
or
165°F(5)
(74°C)
G4 QR Gasket(3) 3-11/16
(94)
G4 SR Gasket(3) 4
(101 mm)
Notes:
1. Face of fitting to ceiling dimensions are based on nominal thread make up. Verify dimensions based on fitting and thread sealing
method prior to installation. A 1/2” x 1/2” brass nipple extension (Reliable P/N 6999991900) is available to assist with replacement of
Reliable Model G4A sprinklers.
2. Model G4 cover plates are available either solid or perforated.
3. Model G4 QR Gasket and Model G4 SR Gasket cover plates are sold as assembled units including both the cover plate and gasket.
Model G4 QR Gasket and Model G4 SR Gasket cover plates and gaskets are not interchangeable.
4. For use with 165°F (74°C) temperature rated sprinklers where the Maximum Ceiling Temperature does not exceed 100°F (38°C).
5. For use with 212°F (100°C) temperature rated sprinklers where the Maximum Ceiling Temperature does not exceed 150°F (66°C).
Cover Plate Finishes(1) Table H
Standard Finishes Special Application Finishes
White Paint
Chrome
Off White Paint
Black Paint
Custom Color Paint – Specify(2)
Raw Brass (Lacquered)
Bright Brass
Finished Bronze
Black Plated
Satin Chrome
Stainless Steel Clad
(3)
Notes:
1. Paint or any other coating applied over the factory finish will void all approvals and warranties. Gaskets for Model G4 QR Gasket and
Model G4 SR Gasket cover plates are only available in white.
2. Custom color paint is semi-gloss unless specified otherwise.
3. Stainless steel clad cover plates are Type 316 Stainless Steel on the finished side and C102 Copper Alloy on the back side. Cover
plates are not listed or approved as corrosion resistant. Stainless steel clad cover plates are not available perforated.
Application
Model G5 series sprinklers are standard coverage, flat
plate concealed pendent sprinklers. The sprinklers are
intended for use in accordance with NFPA 13, as well as
the requirements of the applicable approval agencies.
Model G5 series sprinklers are available as either Quick-
response (QR) or Standard-response (SR) depending on
the approval agency and cover plate selected.
Model G5 series sprinklers use Model G4 flat cover plates.
Model G4 QR Gasket and G4 SR Gasket cover plates are
available to limit air and dust movement through the ceil-
ing.
Listing & Approval Agencies
Individual Model G5 series sprinkler may be listed or ap-
proved by the following agencies:
Underwriters Laboratories, Inc. and UL Canada (cULus)
Listing Category: Sprinklers, Automatic and Open
Guide Number: VNIV
FM Approvals (FM)
Loss Prevention Certification Board (LPCB)
VdS Schadenverhütung GmbH (VdS)
EC-Certificate of Conformity 0832-CPD-2062 (CE)
See Table A and the individual sprinkler data sheets in this
Bulletin for listings and approvals applicable to each
sprinkler.

Bulletin 034 Rev. F Page 8 of 8
June 2016 www.reliablesprinkler.com
Installation
Model G5 series sprinklers are intended to be installed in
accordance with NFPA 13 and the requirements of other
applicable authorities having jurisdiction. Model G5 series
sprinklers must not be installed in ceilings with positive
pressure in the space above.
Model G5 series sprinklers are shipped with a protective
cap that should remain on the sprinkler until installed. The
protective cap should be replaced following installation of
the sprinkler and permanently removed only when the
cover plate is installed and the sprinkler system is placed
in service following construction.
Model G5 series sprinkler are installed with the Model FC
wrench. The use of any other wrench to installed Model G5
series sprinklers is not permitted and may damage the
sprinkler. Temporarily remove the protective cap during
installation of the sprinkler. Insert the Model FC wrench
over the sprinkler until the wrench engages the body. Do
not wrench any other part of the sprinkler/cup assembly.
The Model FC wrench is designed to be turned with a
standard 1/2" square drive. Tighten the sprinkler into the
fitting after applying a PTFE based thread sealant to the
sprinkler’s threads. Recommended installation torque is
specified in Table I.
Installation Torque Table I
Sprinkler Threads
Recommended
Installation Torque
(min. – max.)
ft-lb
N-m
½” NPT or ISO7-1R1/2 8-18 11-24
¾” NPT or ISO7-1R3/4
66
14-20 19-27
Do not exceed the maximum recommended torque. Ex-
ceeding the maximum recommended torque may cause
leakage or impairment of the sprinkler. Use care when in-
serting or removing the wrench from the sprinkler to avoid
damage to the sprinkler.
Model FC Sprinkler Wrench
Install the cover plate by hand, turning the cover in the
clockwise direction until it is tight against the ceiling. For
Model G4 QR Gasket and Model G4 SR Gasket cover
plates, the gasket should be attached to the flange of the
cover plate skirt only. Do not glue the gasket in place or
allow the gasket to overlap both the cover plate and the
flange of the skirt.
Maintenance
Reliable Model G5 series sprinkler should be inspected
and the sprinkler system maintained in accordance with
NFPA 25, as well as the requirements of any Authorities
Having Jurisdiction.
Prior to installation, sprinklers should remain in the original
cartons and packaging until used. This will minimize the
potential for damage to sprinklers that could cause im-
proper operation or non-operation.
Do not clean sprinklers with soap and water, ammonia
liquid or any other cleaning fluids. Remove dust by gentle
vacuuming without touching the sprinkler.
Replace any sprinkler or cover plate which has been
painted (other than factory applied). Properly installed
Model G4 cover plates will have an air gap that is required
for proper operation, do not seal the gap or paint the cover
plates. Model G5 series sprinklers have holes in the cup
that must remain unobstructed.
Replace any sprinkler which has been damaged. A stock
of spare sprinklers should be maintained to allow quick
replacement of damaged or operated sprinklers.
Failure to properly maintain sprinklers may result in inad-
vertent operation or non-operation during a fire event.
Guarantee
For the Reliable Automatic Sprinkler Co., Inc. guarantee,
terms, and conditions, visit www.reliablesprinkler.com.
Patents
Model G5 series sprinklers may be covered by one or
more of the following patents:
U.S. Patent 6,554,077, U.S. Patent 7,275,603, U.S. Patent
8,776,903, U.S. Patent 9,248,327
Ordering Information
Specify the following when ordering.
Sprinkler
•Model (G5-28, G5-42, G5-56, G5-56 300, G5-
80)
•Temperature Rating [165°F (74°C) or 212°F
(100°C)]
•Threads (NPT or ISO 7-1)
Cover Plate
•Model (G4 [Solid], G4 Perforated, G4 QR Gas-
ket, G4 SR Gasket)
•Finish (See Table G)
Sprinkler Wrench
•Model FC
P/N 9999970421