G-FIRE Figure 579
Grooved Rigid Coupling
2 Inch to 8 Inch (DN50 to DN200)
Worldwide
Contacts
www.tyco-fire.com
Page 1 of 6 FEBRUARY 2019 TFP1856
IMPORTANT
Refer to Technical Data Sheet
TFP2300 for warnings pertaining to
regulatory and health information.
General
Description
The GRINNELL G-FIRE Figure 579
Grooved Rigid Couplings provide a
rigid joint by firmly gripping along the
full circumference of the pipe grooves.
Figure 579 couplings are a dependable
method of joining pipe and are an eco-
nomical alternative to welding, thread-
ing, or using flanges.
Figure 579 couplings are rated at pres-
sures up to 365 psi (25,2 bar) depend-
ing on pipe size and wall thickness
when used in fire protection service
applications. Refer to Table A.
NOTICE
The GRINNELL G-FIRE Figure 579
Grooved Rigid Coupling described
herein must be installed and main-
tained in compliance with this docu-
ment, as well as with the applicable
standards of the Approval agency, in
addition to the standards of any other
authorities having jurisdiction. Failure
to do so may result in serious personal
injury or impair the performance of
these devices.
Never remove any piping component
nor correct or modify any piping defi-
ciencies without first de-pressurizing
and draining the system. Failure to do
so may result in serious personal injury,
property damage, and/or impaired
device performance.
It is the designer’s responsibility
to select products suitable for the
intended service and to ensure that
pressure ratings and performance
data are not exceeded. Material and
gasket selection should be verified to
be compatible for the specific applica-
tion. Always read and understand the
installation instructions.
The owner is responsible for main-
taining their mechanical system and
devices in proper operating condi-
tion. Contact the installing contrac-
tor or device manufacturer with any
questions.
Technical
Data
Approvals
UL and ULC Listed
FM Approved
Refer to Table A for details.
Sizes
2 in. to 8 in. (DN50 to DN200)
Housing
Ductile iron conforming to ASTM A536,
Grade 65-45-12
Finish
• Orange non-lead paint
• Red non-lead paint
•
Hot-dipped, Galvanized conforming
to ASTM A153
Bolt/Nut
• ANSI:
Carbon Steel oval neck track head
bolts are heat-treated and conform
to the physical properties of ASTM
A183 Grade 2 and SAE J429 Grade
5 with a minimum tensile strength of
110,000 psi.
Carbon Steel heavy hex nuts con-
form to the physical properties of
ASTM A183 Grade 2 and SAE J995
Grade 5. Bolts and nuts are zinc-
electroplated conforming to ASTM
B633.
• Metric:
Carbon Steel oval neck track head
bolts (Gold color coded) are heat-
treated and conform to the physical
properties of ASTM F568M with a
minimum tensile strength of 760
MPa.
Carbon Steel heavy hex nuts con-
form to the physical properties of
ASTM A563M Class 9. Bolts and
nuts are zinc-electroplated conform-
ing to ASTM B633.
For Fire Protection pressure rating,
listing, and approval information, contact
your GRINNELL Representative.
Gaskets
• Pre-lubricated Grade “A” EPDM,
Violet color code,
-30°F to 150°F (-34°C to 66°C)
For dry and freezer systems, lubrica-
tion is required. Refer to Installation
Manual IH-1000FP for details.
For proper gasket selection, refer to
Technical Data Sheet TFP1895.
