Cut Sheet
KILLARK FITTINGS
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WWW.HUBBELL-KILLARK.COM
F46
EY SERIES
SEALING FITTINGS
Class I, Div. 1 & 2, Groups A, B, C, D
Class I, Zone 1, Groups IIC, IIB, IIA
Class II, Div. 1 & 2, Groups E, F, G
Class III
Consideration for selection seals:
Select the proper sealing fitting for the
hazardous gas/vapor involved; i.e., Class I
Groups A, B, C, or D. Zone 1, Groups IIC, IIB,
IIC.
Select a sealing fitting for the proper use
in respect to mounting position. This is
particularly critical when the conduit runs
between hazardous and nonhazardous areas.
Some seals are designed to be mounted in
any position; others are restricted to vertical
mounting.
Drains
Where there is a probability that liquid or
other condensed vapor may be trapped
within enclosures for control equipment or at
any point in the raceway system, approved
means – such as installation of drain seals
– shall be provided to prevent moisture
accumulation.
For more complete data or special
applications, consult the code or your local
inspector.
Sealing compounds shall be approved for
the purpose and shall not be affected by the
surrounding atmosphere or liquids, and shall
not have a melting point of less than 93°C.
(200°F.).
In the complete seal, the minimum thickness
of the sealing compound shall not be less
than the trade size of the conduit, and in no
case less than 5/8 inch.
NOTE:
The amount of Killark sealing compound and
packing ber required for any seal is determined by
volume hub size and mounting position of the seal.
Refer to installation data table on page F50 for
specic amounts required.
Schematic drawings illustrate the
application of sealing compound, ber
dams, and installed seal with drain.
Splices and taps shall not be made in fittings
intended only for sealing with compound,
nor shall other fittings in which splices or
taps are made be filled with compound.
Killark sealing fittings are produced with
utmost care to insure a substantial margin
of safety. Threads are clean, deep, and
snug. When properly installed with Killark
sealing compound (SC Type) and Killark
non-asbestos fiber (PF Type) for the dams,
you can be sure your installation will provide
more than adequate safety.
EY EY with Nipple
(For Vertical Conduit)
EYD EYD with Nipple
(Drain/Seal for Vertical Conduit)
EYS EYS with Nipple
(For Vertical or Horizontal Conduit)
ENY ENY with Nipple
(For Vertical or Horizontal Conduit)
ENY-2
(Fixture Hanger)
(See Page L146)
Application & Installation
Class I, Divisions 1 and 2
The purpose of seals in a Class I hazardous
location is to minimize the passage of gases
and vapors and prevent the passage of
flames from one electrical installation to
another through the conduit system. Seals
are required to be installed within 18 inches
on any conduit run entering an enclosure
which contains devices that may produce
arcs, sparks, or high temperature. Where
two enclosures are connected by a run of
conduit not over 3 ft. long, a single seal
located at the center of the run is considered
satisfactory. Only explosionproof unions,
couplings, elbows, and conduit bodies
similar to “L”, “T”, and “X” type shall be
permitted between the sealing fitting and the
enclosure.
Seals shall be located within 18 inches of the
enclosure or fitting on each conduit run of
2 inch size or larger entering an enclosure
or fitting that contains terminals, splices, or
taps.
Each run of conduit from a hazardous
location to a nonhazardous location should
be sealed to minimize the amount of gases
and vapors communicated beyond the seal.
Class II, Divisions 1 and 2
Where a raceway provides communication
between an enclosure which is required
to be dust-ignitionproof and one which is
not, suitable means shall be provided to
prevent the entrance of dust into the dust-
ignitionproof enclosure through the raceway.
FEATURES-SPECIFICATIONS