www.tnb.ca
B84
Industrial Fittings
T&B Fittings
Liquidtight Flexible Metal Conduit
Fittings
Please Note
The excerpts and other material herein, whether relating to the Canadian
Electrical Code 2012 Part I, the Underwriters Laboratories, Inc. listing,
to industry practice or otherwise, are not intended to provide all relevant
information required for use and installation. Reference to original or
primary source material and data is mandatory before any
application or use is made of the product.
Ref. CEC Rule 12-1300
Liquidtight flexible metal conduit is a raceway of
circular cross section having an outer liquidtight
nonmetallic, sunlight resistant jacket over a flexible
metal core.
Liquidtight flexible metal conduit is permitted to be
used for exposed or concealed work, in dry, damp
or wet locations indoors and outdoors. With the
exception of Class I Division I locations, liquidtight
flexible metal conduit is considered an accep-
table wiring method in hazardous locations Class 1
Division 2 (CEC Rule J18-152(6)).
Liquidtight flexible metal conduit is not permit-
ted where subjected to mechanical injury. The
conduit is not permitted to be used underground or
embedded in cinder fill or concrete. It cannot be
used as a general purpose raceway.
Use of liquidtight conduit is not permitted where
any combination of ambient or conductor tem-
perature will produce temperature in excess of that
for which the jacket is rated or in locations where
flexing at low temperature will injure jacket. Liquidtight
flexible metal conduit is not permitted for
conductors over 600 volts.
Liquidtight flexible conduit is available in 3/8 in.
through 6 in. trade size. Conduit is constructed
with galvanized steel or aluminum core, regular
or extra flex. Outer jacket is available for a variety
of applications, e.g. oil resistant where exposed
to cutting oils and for service temperature ranging
from -50°C to 150°C.
Listed and certified conduits are constructed of
galvanized steel core and thermoplastic jacket rated
for maximum service temperature of 60°C and
suitable for exposure to mineral oils but not to
gasoline and similar solvents.
Conduit is required to be supported adequately, and
bending is restricted to 360 degrees total.
Please refer to the following for further details and
complete information:
1. UL 360…Safety Standards for
Liquidtight Flexible Steel Conduit
2. UL 514A and 514B, Safety Standards for
Outlet Boxes and Fittings
3. W-F-406…Federal Specification: Fittings
for Cable, Power, Electrical and Conduit,
Metal, Flexible
4. NEMA FB-1…Standards Publication:
Fittings, Cast Metal Boxes and Conduit
Bodies for Conduit, Electrical MetallicTubing
and Cable
5. EMP-1…JIC Electrical Standards for Mass
Production Equipment
6. EGP-1…JIC Electrical Standards for
General Purpose Machine Tools
7. CEC Section 12-1300…Wiring Methods
(Liquidtight Metal Conduit)
8. CSA C22.2 No. 56…Safety Standard for
Flexible Metallic Conduit and Liquidtight
Flexible Metal Conduit
9. CSA C22.2 Nos. 18.1 and 18.3...Safety
Standards for Outlet Boxes, Conduit Boxes
and Fittings
Specifications
www.tnb.ca B85
Industrial Fittings
T&B Fittings
Liquidtight Flexible Metal Conduit Fittings
• Liquidtight Flexible Metal conduit used shall be
of the type with galvanized steel core inside and
outside and outer thermoplastic jacket suitable
for the ambient environmental conditions. Jacket
shall be positively locked to core to prevent
sleeving. Where used as an equipment grounding
conductor, the conduit shall conform to applicable
standards UL 360/CSA C22.2 No. 56.
• Flexible conduit when installed shall have
sufficient slack to avoid sharp flexing and strain-
ing due to vibration and thermal expansion/
constriction. Conduit shall be installed in such a
manner that liquids will tend to run off the surface
instead of draining toward the fittings.
• Where liquidtight flexible metal conduit termi-
nates into a threaded or threadless opening, the
conduit shall be assembled with approved liquidtight
fittings. Fittings used shall be reusable type of
malleable iron/steel construction, electro-zinc
plated inside and outside, furnished with nylon
insulated throat and taper threaded hub as
manufactured by Thomas & Betts, Series 5331.
Approved fittings installed shall be:
(1) Designed to prevent sleeving, as-
sure plastic (raceway jacket) to plastic
(gasket) seal.
(2) Equipped with grounding device to
assure ground continuity irrespective of
raceway core construction. Groun-
ing device if inserted into raceway and
directly in contact with conductors shall have
rolled over edges for sizes under 5 inches.
At the point of flexing (i.e. where raceway leaves
fitting) the thermoplastic raceway jacket shall not
be permitted to be in direct contact with metal.
• Where liquidtight flexible metal conduit is
terminated into a threadless opening using a
threaded hub fitting such as Thomas & Betts
Series 5331, a suitable moisture resistant/oil
resistant synthetic rubber gasket such as
Thomas & Betts Series 5262 shall be provided
between the outside of box or enclosure and
fitting shoulder. Gasket shall be adequately
protected by and permanently bonded to a me-
tallic retainer.
• Where liquidtight flexible metallic raceway is
installed in outdoor or indoor locations and
is exposed to environmental conditions that
are more than normally corrosive to exposed
surfaces, PVC coated liquidtight flexible metal
conduit fittings such as Series 3321 manufac-
tured by Thomas & Betts shall be used. Fittings
shall be coated with a nominal thickness of 0.040
PVC and must meet the general requirements for
liquidtight flexible metal conduit fittings indicated
above.
• Liquidtight fittings required to couple threaded
end of a fitting or pipe where rotation of fitting or
pipe is limited or restricted shall be reusable type
of malleable iron/steel construction, electro-zinc
plated inside/outside with taper threaded hub
as manufactured by Thomas & Betts, Series 41.
Fittings shall be equipped with a moisture
resistant/oil resistant synthetic rubber gasket.
Metal to metal seal or metal to thermoplas-
tic seal for this application shall be considered
unacceptable.
Series 5331; Series 5231AL
Liquidtight Flexible Metal
Conduit Fittings
Series 5262
Sealing Gasket
Series 3321
PVC Coated Liquidtight Flexible
Metal Conduit Fittings
Series 41
Liquidtight Union
5331GR Series
External Bonding
Suggested Specifications for Liquidtight Flexible Metal Conduit Fittings
www.tnb.ca
B86
Industrial Fittings
T&B Fittings
Application
•
Used where flexible metal raceway is
installed in outdoor or indoor locations
where exposed to continuous or
intermittent moisture
•
To positively bond conduit to box
or enclosure
Features
•
Ability to install quickly with low torque
effort
•
Ground cone design offers following
advantages
(1) Compresses metallic convolutions;
provides high quality ground contact
with low impedance and high raceway
holding power (A)
(2) Single helical thread on ground cone is
easy to install without cross threading;
accepts variations in raceway diameters
and convolution pitch (B)
(3) Rolled over edge protects
conductors (C)
Sealing ring design has following exclusive
features:
(1) Grips and seals at leading and
trailing edge — will not abrade
raceway jacket (D)
(2) Provided with grooves on inside
diameter for anti-sleeving (E)
(3) Shoulders on both ends for extra
sealing (F)
(4) Symmetrical shape assures
foolproof assembly
•
Can be disconnected and reused
•
Watertight/oiltight installation at box or
enclosure termination is assured by
(1) External taper thread hub on 5331
Series and use of sealing gasket 5262
Series (G)
(2) Captive sealing ‘O’ ring on
5361 Series (H)
(3) Taper tapped hole on 5271 Series
•
For Hazardous Location applications,
please refer to CEC Section 18
•
CEC Rule 12-1306 stipulates “a separate
bonding conductor shall be installed in li-
quidtight flexible conduit in accordance with
section 10
•
1/2 in. and 1-1/4 in. sizes Laboratory tested
to carry ground fault current of up to 1000
amps RMS with duration of fault current
3 cycles
•
Conforms with JIC requirements
•
Available with imperial, I.S.O. and PG
threaded hub
Standard Material
5331-5361-5271 Series
Body, Gland, Locknut and Ground
Cones: All steel or malleable iron.
Sealing Ring and Insulator:
All thermoplastic rated min. -20ºc
max. 105°C
Sealing Gasket: Stainless Steel and
Buna N
5231 AL Series
All Copper-free Aluminum
(non-insulated)
Standard Finish
5331-5361-5271 Series
Electro Zinc Plated and
Chromate Coated
5231 AL Series
Copper-free Aluminum
Range
•
5331 Series 3/8 in. thru 6 in. conduit
•
5341 Series 3/8 in. thru 4 in. conduit
•
5351 Series 3/8 in. thru 4 in. conduit
•
5361 Series 3/8 in. thru 4 in. conduit
•
5271 Series 3/8 in. thru 1-1/4 in.
conduit
•
5231 AL Series 3/8 in. thru 4 in. conduit
All hubs provided with taper pipe
threads (NPT)
Conformity
UL 514B
CSA C22.2 No. 18.3
NEMA FB-1
NFPA 70-2008 (ANSI)
JIC EGP1, JIC EMP1
Federal Specification
W-F-406
Federal standard
H-28 (Threads)
Specifications
(H)
Predetermined
Compression
5331 Series
5231 AL Series 5361 Series
5341 Series…
same as 5331,
except 45° Fittings
5351 Series…
same as 5331,
except 90° Fittings
5361 Series
Chase Style 5271 Series
Liquidtight Flexible Metal Conduit
Fittings
www.tnb.ca B87
Industrial Fittings
T&B Fittings
Liquidtight Flexible Metal Conduit Fittings
High Temperature Flexible Metal Liquidtight Fittings
Suggested Specification
Where Liquidtight flexible metal fittings are
required in high temperature environments up to
150°C:
•
Fitting’s body, gland, locknut and ground
cone shall be constructed from steel or
malleable iron, electro-zinc plated and chro-
mate coated for corrosion protection
•
Fitting’s sealing ring and throat insulator
will be molded from high temperature nylon
suitable for temperatures up to 150°C and a
minimum UL flammability
rating of UL94-V2
•
The fitting shall be constructed to accept
high temperature flexible metal
liquidtight conduit rated to 150°C (works
with our ATX Series conduit, p. G11)
•
The fitting shall have a plastic throat
insulator to protect conductors
•
The fitting shall have a steel ground
cone to:
- provide high quality ground contact
- single helical thread for easy installation
into conduit
- rolled over edge to protect conductors
•
The fitting shall have a plastic sealing
ring to:
- grip and seal at leading and trailing edge
(double bevel up to 2 in.) of conduit jacket
- provide a watertight/oiltight seal
•
The fittings shall be able to terminate the
conduit in either a threaded or threadless
opening
•
For applications where termination into a
threaded opening is required the fitting shall
have external tapered NPT threads
•
For applications where termination into a
threadless opening is required use an
acceptable sealing ring
•
Fittings shall conform to UL 514B
•
Accepted Manufacturers:
Thomas & Betts — 5331-HT straight
Series, 5341-HT 45° Series, 5351-HT
90° Series; 5262 sealing ring Series
T&B HT-Series Liquidtight Fittings are available straight, 45°, and
90°
Straight Liquidtight Fittings
Cat. No. Conduit
Size (in.)
Dimensions (in.)
A B C
5331-HT
3/8 1-5/32 1-1/2 9/16
5332-HT
1/2 1-3/8 1-9/16 9/16
5333-HT
3/4 1-21/32 1-5/8 9/16
5334-HT
11-7/8 2-1/16 3/4
5335-HT
1-1/4 2-9/32 2-1/2 13/16
5336-HT
1-1/2 2-22/32 2-11/16 13/16
5337-HT
23-1/4 3-1/16 7/8
5338-HT
2-1/2 3-3/4 4-1/8 1
5339-HT
34-1/2 4-1/4 1
5340-HT
45-1/2 4-1/2 1-1/8
Please note: There is no CSA and UL Standards applicable for High Temperature Fittings or Conduits.
Therefore neither HT Fittings nor HT Conduit bear these Certifications/Listings.
45° Liquidtight Fittings
Cat. No. Conduit
Size (in.)
Dimensions (in.)
A B C
5341-HT
3/8 1-5/32 1-9/16 9/16
5342-HT
1/2 1-3/8 1-7/8 9/16
5343-HT
3/4 1-21/32 2-1/8 9/16
5344-HT
1 1-7/8 2-1/4 3/4
5345-HT
1-1/4 2-9/32 2-3/4 13/16
5346-HT
1-1/2 2-22/32 2-3/8 13/16
5347-HT
23-1/4 3-7/8 7/8
90° Liquidtight Fittings
Cat. No. Conduit
Size (in.)
Dimensions (in.)
A B C
5351-HT
3/8 1-5/32 1-3/8 9/16
5352-HT
1/2 1-3/8 1-9/16 9/16
5353-HT
3/4 1-21/32 1-3/4 9/16
5354-HT
1 1-7/8 2-3/16 3/4
5355-HT
1-1/4 2-9/32 2-3/4 13/16
5356-HT
1-1/2 2-22/32 2-15/16 13/16
5357-HT
23-1/4 3-7/16 7/8
C
B
A
B
C
A
B
A
B
C
www.tnb.ca
B88
Industrial Fittings
T&B Fittings
Liquidtight Flexible Metal Conduit
Fittings
45° Angle Fittings*
Cat. No. Size (in.) Dimensions (in.)
Insulated Non-insulated A B C
5341** 5241
3/8 1-5/32 1-9/16 9/16
5342 5242
1/2 1-3/8 1-7/8 9/16
5343 5243
3/4 1-21/32 2-1/8 9/16
5344 5244
11-7/8 2-1/4 3/4
5345 5245
1-1/4 29/32 2-3/4 1-3/16
5346 5246
1-1/2 2-23/32 3-3/8 1-3/16
5347 5247
23-1/4 3-7/8 7/8
5348 5248
2-1/2 3-3/4 4-1/4 1
5349 5249
34-1/2 4-1/4 1
5350 5250
45-1/2 4-5/8 1-1/8
** 3/8 in. Conduit Fitting has 1/2 in. hub
UL Listed liquidtight; and CSA Certified watertight
For Dura-Plate
®
finish, add prefix 040- to Cat. No. Consult Regional Sales Office for details
For Wiremesh Grips refer to page B74
Straight Fittings
Cat. No. Conduit
Size (in.)
Dimensions (in.)
Insulated Aluminum Non-
insulated A B C
5331**
s
5231AL 5231
3/8 1-5/32 1-1/2 9/16
5332
s
5232AL 5232
1/2 1-3/8 1-9/16 9/16
5333
s
5233AL 5233
3/4 1-21/32 1-5/8 9/16
5334-TB
s
5234AL 5234-TB
11-7/8 2-1/16 3/4
5335
s
5235AL 5235
1-1/4 29/32 2-1/2 13/16
5336+ 5236AL 5236
1-1/2 2-23/32 2-11/16 13/16
5337+ 5237AL 5237
23-1/4 3-1/16 7/8
5338+ 5238AL 5238
2-1/2 3-3/4 4-1/8 1
5339+ 5239AL 5239
34-1/2 4-1/4 1
5340+ 5240AL 5240
45-1/2 4-1/2 1-1/8
5385*+ —5285*
58-3/4 71-7/8
5386*+ — —
68-3/4 8-1/2 2
** 3/8 in. Conduit Fitting has 1/2 in. hub
UL Listed liquidtight; and CSA Certified watertight
For Dura-Plate
®
finish, add prefix 040- to Cat. No. Consult your Regional Sales Office for details
* Not CSA Certified
t Steel
+ Malleable Iron
Cat. No. Hub
Size (in.)
Conduit
Size (in.)
Dimensions (in.)
A B C
5229*
1/4 1/4 27/32 1-3/8 15/32
5330*
3/8 5/16 63/64 1-3/8 15/32
* UL and CSA not applicable
For Control and Power Cable Applications
B
C
A
Steel, malleable iron, or aluminum tapered hub threads. With
safe-edge ground thru 4 in. cone and double bevel sealing ring
(through 2 in.)
A
B
C
Malleable iron, tapered hub threads. With safe-edge ground cone
and double bevel sealing ring (through 2 in.)
www.tnb.ca B89
Industrial Fittings
T&B Fittings
Liquidtight Flexible Metal Conduit Fittings
90º Angle Fittings
Cat. No. Hub
Size (in.)
Conduit
Size (in.)
Dimensions (in.)
Insulated NonInsulated Aluminium A B C
5351 5251 5251AL
3/8 3/8 1-5/32 1-3/8 9/16
5352 5252 5252AL
1/2 1/2 1-3/8 1-9/16 9/16
5353 5253 5253AL
3/4 3/4 1-21/32 1-3/4 9/16
5354 5254 5254AL
1 1 1-7/8 2-3/16 3/4
5355 5255 5255AL
1-1/4 1-1/4 29/32 2-3/4 13/16
5356 5256 5256AL
1-1/2 1-1/2 2-23/32 2-15/16 13/16
5357 5257 5257AL
2 2 3-1/4 3-7/16 7/8
5358 5258 5258AL*
2-1/2 2-1/2 3-3/4 8-7/8 1
5359 5259 —
3 3 4-1/2 10-1/4 1
5360 5260 —
4 4 5-1/2 12-5/8 1-1/8
For Hazardous Location applications, please refer to CEC Section 18.
UL Listed liquidtight; and CSA Certified watertight
* Not CSA Certified
Wiremesh Grips for Liquidtight Fittings
Cat. No. Conduit
Size (in.)
Liquidtight Fittings 90º
Chase Chase Adapter
Straight 45º 90º
WMG-LT1
3/8 5331 5341 5351 5361 5371 5271
WMG-LT2
1/2 5332 5342 5352 5362 5372 5272
WMG-LT3
3/4 5333 5343 5353 5363 5373 5273
WMG-LT4
15334-TB 5344 5354 5364 5374 5274
WMG-LT5
1-1/4 5335 5345 5355 5365 —5275
WMG-LT6
1-1/2 5336 5346 5356 5366 —5276
WMG-LT7
25337 5347 5357 5367 —5277
WMG-LT8
2-1/2 5338 5348 5358 5368 —5278
WMG-LT9
35339 5349 5359 5369 —5279
WMG-LT10
45340 5350 5360 5370 —5282
Order wiremesh grip separately: no need to duplicate inventory
Prevents severe conduit
bends and pullout
B
A
C
www.tnb.ca
B90
Industrial Fittings
T&B Fittings
Liquidtight Flexible Metal Conduit
Fittings
The strength of steel – with superior corrosion-resistance!
Until now, there’s been no ideal conduit fitting solution for use in heavily
corrosive environments. Traditional metallic fittings corrode and require
frequent replacement. nonmetallic fittings offer less strength, lower
UV-resistance, and don’t stand up well in extreme temperatures. T&B Stainless
Steel Liquidtight Conduit Connectors are constructed of 304 stainless steel
to resist corrosion while offering high strength, high UV-resistance, and high
endurance. Choose among a full range of fittings in straight, 45º, and 90º
angled configurations for 3/8 in. to 2 in. conduit sizes. Look for the distinctive
blue insulator and sealing ring for assurance of T&B quality.
•
Ideal for industrial MRO and OEM applications in food and
beverage, pharmaceutical, petrochemical, waste water, salt water,
and other corrosive environments
•
Connects metallic-cored liquidtight conduit to a box or enclosure
•
304 stainless steel body and gland-nut resists corrosion far better
than other metallic fittings
•
Stronger, more UV-resistant than nonmetallic fittings
•
Available in straight, 45º, and 90º angled configurations to fit
conduit from 3/8 in. to 2 in.
•
UL Listed Ratings: 3, 3R, 4, 4X
•
5262 Sealing Ring Gasket (sold separately) includes a stainless steel
retaining ring to prevent elongation of the gasket and is made from
Santoprene™ material, ensuring a superior seal
Stainless Steel
B
A
B
A
C
A
C
B
5262 Series
Sealing Ring Gasket
sold separately
Liquidtight Conduit Fittings
Cat. No Size
(in.)
Dimensions (in.) Std. Pkg.
Qty. Cat. No Size
(in.)
Dimensions (in.) Std. Pkg.
Qty.
A B C A B C
Straight 90º Angled
5331SST *
3/8 1.360 1.02 —25
5351SST *
3/8 1.95 1.02 1.84 25
5332SST
1/2 1.360 1.18 —25
5352SST
1/2 2.12 1.18 2.07 25
5333SST
3/4 1.388 1.37 —25
5353SST
3/4 2.47 1.37 2.44 10
5334SST
11.562 1.77 — 5
5354SST
12.98 1.77 2.90 5
5335SST
1-1/4 1.720 2.12 —20
5355SST
1-1/4 3.53 2.12 3.36 5
5336SST
1-1/2 2.020 2.48 — 5
5356SST
1-1/2 4.16 2.48 3.88 2
5337SST
22.335 3.04 — 2
5357SST
28.60 3.04 4.69 1
45º Angled Sealing Gasket
5341SST *
3/8 1.84 1.02 1.43 25
5261
3/8 ———50
5342SST
1/2 1.62 1.18 2.04 25
5262
1/2 ———50
5343SST
3/4 2.32 1.37 1.93 10
5263
3/4 ———25
5344SST
12.86 1.77 2.37 5
5264
1 — — — 25
5345SST
1-1/4 3.33 2.12 2.80 5
5265
1-1/4 — — — 5
5346SST
1-1/2 3.94 2.48 3.39 2
5266
1-1/2 — — — 5
5347SST
24.73 3.04 4.23 1
5267
2 — — — 5
Locknut not included
* 3/8 in. conduit fitting has 3/8 in. hub
www.tnb.ca B91
Industrial Fittings
T&B Fittings
Liquidtight Flexible Metal Conduit Fittings
Liquidtight Adapter To Connect
Liquidtight to Threaded Rigid Conduit
Cat. No. Conduit Size
(in.)
Dimensions (in.) Std.
Pkg.
A B C
5271
3/8 1-5/32 1-9/16 1-3/8 50
5272
1/2 1-3/8 1-11/16 1-3/8 50
5273
3/4 1-21/32 1-3/4 1-3/8 50
5274
11-7/8 2-1/8 1-3/8 25
5275
1-1/4 2-9/32 2-1/2 1-3/8 25
5276
1-1/2 2-3/4 2-11/16 1-3/8 10
With SAFE-EDGE
TM
ground cone and double bevel sealing ring (through 2 in.)
For Hazardous Location applications, please refer to CEC Section 18.
A
C
B
www.tnb.ca
B92
Industrial Fittings
T&B Fittings
Liquidtight Flexible Metal Conduit
Fittings
C
B
A
Nylon Insulated CHASE® Fittings
Steel or Malleable Iron
Cat. No. Conduit Size
(in.)
Dimensions (in.) Std.
Pkg.
A B C
5361
3/8 1-3/32 1-3/8 1/8 100
5362
1/2 1-3/8 1-3/8 3/16 100
5363
3/4 1-11/16 1-5/8 1/4 50
5364
12-1/32 2-1/16 1/4 25
5365
1-1/4 2-3/8 2-3/8 5/16 25
5366
1-1/2 2-15/16 2-3/4 3/8 10
5367
22-9/16 33/8 5
5368
2-1/2 4-3/8 3-15/16 7/16 5
5369
35-1/8 4-1/8 1/2 5
5370
45-1/8 4-3/8 1/2 5
With SAFE-EDGE
TM
ground cone and double bevel sealing ring (through 2 in.)
Note: UL Listed Liquidtight; and CSA Certified Watertight
For Hazardous Location applications, please refer to CEC Section 18.
www.tnb.ca B93
Industrial Fittings
T&B Fittings
Liquidtight Flexible Metal Conduit Fittings
Application
•
Used where external bonding jumper is
required around liquidtight flexible metal
conduit
•
To positively bond conduit to box or enclosure
•
Used where flexible raceway is installed in
outdoor or indoor locations where exposed to
continuous or intermittent moisture
Features
•
Designed with provision to install bonding
jumper in several positions
•
Designed to accept mechanical or
compression lug
•
Ability to install quickly with low torque effort
(i) Compresses metallic convolutions;
assures ground contact with low
impedance and high raceway holding
power (A)
(ii) Single helical thread on ground cone is
easy to install without cross threading;
accepts variations in raceway diameters
and convolution pitch (B)
(iii) Rolled over edge protects conductors (C)
•
Sealing ring design has following exclusive
features:
(i) Grips and seals at leading and trailing
edge — will not abrade raceway
jacket(D)
(ii) Provided with grooves on inside
diameter for anti-sleeving (E)
(iii) Shoulders on both ends for extra
sealing (F)
(iv) Symmetrical shape assures foolproof
assembly
•
Can be disconnected and reused
•
Watertight/oiltight installation at box or
enclosure termination is assured by:
1. External taper thread hub on 5331GR
Series and use of sealing gasket 5262
Series (G)
2. Taper tapped hole on 5271 Series
•
For Hazardous Location applications, please
refer to CEC Section 18
•
Conforms with JIC requirements
•
CEC Rule 12-1306 stipulates “a separate
bonding conductor shall be installed in
liquidtight flexible conduit in accordance with
section 10”
•
CEC Rule 10-618 (3) “The armour of flexible
metal conduit and liquidtight flexible metal
conduit shall not be considered as fulfilling
the requirements of a bonding conductor
for the purposes of this rule, and a separate
bonding conductor shall be run within the
conduit”
Standard Material
Lugs: High conductivity copper
(for copper conductor only)
Body, Gland, Locknut & Ground
Cones: All steel or malleable iron
Sealing Ring and Insulator:
All thermoplastic
Sealing Gasket: Stainless Steel & Buna N
Strap: Steel
Standard Finish
All Electro Zinc Plated and Chromate
Coated except lugs
Lugs: Bright Dipped
Range
•
5331GR Series (straight fittings with male
hub): 3/8 in. thru 6 in. conduit
•
5341GR Series (45°): 3/8 in. thru 4 in.
conduit
•
5351GR Series (90°): 3/8 in. thru 4 in.
conduit
•
5271GR Series (straight fittings
with female hub): 3/8 in. thru 1-1/4 in conduit
All hubs provided with taper pipe threads (NPT)
Conformity
UL 467
UL 514B
CSA C22.2 No. 18.3
CSA C22.2 No. 41
NEMA FB-1
NFPA 70-2008 (ANSI)
JIC EGP1
JIC EMP1
Federal Specification W-F-406
Federal Standard H-28 (threads)
Specifications — External Bonding
Series 5331GR
Series 5271GR
Gland
Sealing
Ring
Ground
Cone
(D)
Body
Sealing
Gasket
Locknut (H)
(F)
Leading Edge
(G)
(F)
Trailing
Edge
(I)
Taper Threaded Hub
Raceway Core
Convolutions
(E)
(B)
(C)
(A)
(B)
(A)
(B)
Sleeving
Raceway Jacket pulls off — exposing core and affecting
liquidtight termination. Feature (E) on sealing ring helps overcome
this problem.
www.tnb.ca
B94
Industrial Fittings
T&B Fittings
Liquidtight Flexible Metal Conduit
Fittings
Straight Grounding Fittings
Cat. No. Conduit
Size (in.)
Dimensions (in.) Ground
Wire
Steel
Insulated
Steel
Non-insulated
Aluminum
Non-insulated A B C
5331GR** 5231GR 5231ALGR*
3/8 1-5/32 1-1/2 9/16 14-8
5332GR 5232GR 5232ALGR*
1/2 1-3/8 1-9/16 9/16 14-8
5333GR 5233GR 5233ALGR*
3/4 1-21/32 1-5/8 9/16 14-4
5334GR 5234GR 5234ALGR*
11-7/8 2-1/16 3/4 14-4
5335GR 5235GR
1-1/4 2-1/4 2-1/2 13/16 8-1/0
5336GR 5236GR
1-1/2 3-1/4 2-11/16 13/16 4-2/0
5337GR 5237GR
23-13/16 3-1/16 7/8 4-2/0
5338GR 5238GR
2-1/2 4-7/16 4-1/8 12-4/0
5339GR 5239GR
35-3/16 4-1/4 12-4/0
5340GR 5240GR
46-1/8 4-1/2 1-1/8 2-4/0
5385GR 5285GR
58-9/16 71-7/8 2-4/0
5386GR —
68-17/32 8-1/2 22-4/0
* Not CSA Certified
** 3/8 in. conduit fittings have 1/2 in. trade size hub. With safe-edge ground cone (through 4 in.) and double bevel sealing ring
(through 2 in.).
45° Angle Grounding Fittings
Cat. No. Conduit
Size (in.)
Dimensions (in.) Ground
Wire
Steel
Insulated
Steel
Non-insulated A B C
5341GR** 5241GR**
3/8 1-5/32 1-9/16 9/16 14-8
5342GR 5242GR
1/2 1-3/8 1-7/8 9/16 14-8
5343GR 5243GR
3/4 1-21/32 2-1/8 9/16 14-4
5344GR 5244GR
11-7/8 2-1/4 3/4 14-4
5345GR 5245GR
1-1/4 2-1/4 2-3/4 13/16 8-1/0
5346GR 5246GR
1-1/2 3-1/4 3-3/8 13/16 4-2/0
5347GR 5247GR
23-13/16 3-7/8 7/8 4-2/0
5348GR 5248GR
2-1/2 4-7/16 4-1/4 12-4/0
5349GR 5249GR
35-3/16 4-1/4 12-4/0
5350GR 5250GR
46-1/8 4-5/8 1-1/8 2-4/0
** 3/8 in. conduit fittings have 1/2 in. trade size hub. With safe-edge ground cone (through 4 in.) and double bevel sealing ring
(through 2 in.).
90° Angle Grounding Fittings
Cat. No.
Conduit
Size (in.)
Dimensions (in.) Ground
Wire
Steel
Insulated
Steel
Non-
insulated
Aluminum
Non-
insulated A B C
5351GR** 5251GR** 5251ALGR*
3/8 1-5/32 1-1/4 9/16 14-8
5352GR 5252GR 5252ALGR*
1/2 1-3/8 1-7/16 9/16 14-8
5353GR 5253GR 5253ALGR*
3/4 1-21/32 1-13/16 9/16 14-4
5354GR 5254GR 5254ALGR*
11-7/8 2-1/16 3/4 14-4
5355GR 5255GR
1-1/4 2-1/4 2-1/2 13/16 8-1/0
5356GR 5256GR
1-1/2 3-1/4 2-15/16 13/16 4-2/0
5357GR 5257GR
23-13/16 3-7/16 7/8 4-2/0
5358GR 5258GR
2-1/2 4-7/16 8-7/8 12-4/0
5359GR 5259GR
35-3/16 10-1/4 12-4/0
5360GR 5260GR
46-1/8 12-5/8 1-1/8 2-4/0
* Not CSA Certified
** 3/8 in. conduit fittings have 1/2 in. trade size hub. With safe-edge ground cone (through 4 in.) and double bevel sealing ring
(through 2 in.).
C
B
A
Malleable iron, tapered hub threads
C
Ground Wire
Max. over Ribs
A
B
Malleable iron, tapered hub threads
Ground Wire
Max. over Ribs
B
A
C
Malleable iron, tapered hub threads
www.tnb.ca B95
Industrial Fittings
T&B Fittings
Liquidtight Flexible Metal Conduit Fittings
External Grounding Strap
Cat. No. Conduit
Size (in.)
A
Swing Radius (in.)
B
Bolt Sizes
GR1W
3/8 110-24
GR2W
1/2 1-1/16 10-24
GR3W
3/4 1-3/8 1/4-20
GR4W
11-1/2 1/4-20
GR5W
1-1/4 1-7/8 5/16-18
Liquidtight to Rigid External Ground Adaptor
Cat. No. Conduit
Size (in.)
A
Overall Lenght (in.)
B
Bolt Sizes
C
Lug Range
5271GR*
3/8 1-15/32 10-24 14-8
5272GR
1/2 1-3/8 10-24 14-8
5273GR
3/4 1-21/32 1/4-20 14-4
5274GR
11-7/8 1/4-20 14-4
5275GR
1-1/4 2-1/4 5/16-18 8-1/0
5276GR
1-1/4 2-29/32 3/8-16 3/8-16
* 3/8 in. conduit fittings have 1/2 in. trade size hub
For Dura-Plate
®
finish add prefix 040- to Cat. No. Consult your Regional Sales Office for details
RevolverTM Grounding Device
Cat. No. Conduit
Size (in.)
38GR-TB
3/8
12GR-TB
1/2
34GR-TB
3/4
1GR-TB
1
The grounding device is a combination of a set screw and a grounding lug that can be used to retrofit any existing liquidtight fitting to an
externally grounded version
Bolt
A
B
Swing
Radius
For retrofit applications.
Includes strap, nut and bolt
B
Bolt
Size
C
Lug Range
A
www.tnb.ca
B96
Industrial Fittings
T&B Fittings
Liquidtight Flexible Metal Conduit
Fittings
Application
•
Used where liquidtight flexible metal
conduit is installed in outdoor or indoor
locations where exposed to environmental
conditions that are more than normally
corrosive to exposed surfaces
•
To positively bond conduit to box
or enclosure
Features
•
PVC coated to protect fitting from extremely
corrosive surroundings without affecting
integrity of electrical grounding path (A)
•
Provided with overlapping sleeve for
additional seal (B)
•
Ability to install quickly with low
torque effort
•
Ground cone design offers following
advantages:
(i) Compresses metallic convolutions;
provides high quality ground contact
with low impedance and high raceway
holding power (C)
(ii) Single helical thread on ground cone is
easy to install without cross threading;
accepts variations in raceway diameters
and convolution pitch (D)
(iii) Rolled over edge protects conductors
(E)
•
Sealing ring design has following
exclusive features:
(1) Grips and seals at leading and trailing
edge—will not abrade raceway jacket
(F)
(2) Provided with grooves on inside diame-
ter for anti-sleeving (G)
(3) Shoulders on both ends for extra
sealing
(4) Symmetrical shape assures foolproof
assembly
•
Hardened steel or malleable iron locknut (H)
•
Can be disconnected and reused
•
Watertight/oiltight installation at box or
enclosure termination is provided by external
taper thread hub and sealing gasket (I)
•
Conforms with JIC requirements
Standard Material
Body, Gland, Locknut and Ground Cones:
All steel or malleable iron
Sealing Ring and Insulator:
All thermoplastic
Sealing Gasket, Retainer: Stainless Steel
Resilient Seal: Buna N
Coating: PVC
Standard Finish
Outside of body and gland:
PVC Coated 0.040 min. Thickness
Inside of body and gland:
Electro Zinc Plated and Chromate Coated
Locknut, Sealing Gasket, and Retainer:
Electro Zinc Plated and Chromate Coated
Range
•
3321, 3361 and 3341 Series
3/8 in. thru 4 in. conduit
All hubs provided with taper pipe
threads (NPT).
Conformity
UL 514B
CSA C22.2 No. 18.3
NEMA FB-1
NFPA 70-2008 (ANSI)
JIC EGP1
JIC EMP1
Federal Specification W-F-406
Federal Standard H-28 (THREADS)
Specifications —PVC Coated
3321 Series*
*3361 Series...same as 3321, except 90°
3341 Series...same as 3321, except 45°
Gland
Sealing
Ring
Ground
Cone
(D)
Body
Sealing
Gasket
Locknut (H)
(F)
Leading Edge
(G)
(F)
Trailing
Edge
(I)
Taper Threaded Hub
Raceway Core
Convolutions
(E)
(B)
(C)
(A)
(B)
(A)
(B)
www.tnb.ca B97
Industrial Fittings
T&B Fittings
Liquidtight Flexible Metal Conduit Fittings
Cat. No. Conduit
Size (in.)
Dimensions (in.)
A B C
Straight PVC Coated
3321
3/8 1-15/32 2-5/16 9/16
3322
1/2 1-5/8 2-1/2 9/16
3323
3/4 1-15/16 2-25/32 9/16
3324
12-1/4 3-15/32 3/4
3325
1-1/4 2-11/16 4-1/4 13/16
3326
1-1/2 3-1/8 4-11/16 13/16
3327
23-5/8 5-5/16 7/8
3328-TB
2-1/2 4-3/8 6-3/8 1
3329
35-3/16 6-1/2 1
3331
46-7/16 6-3/4 1-1/8
90° PVC Coated
3361
3/8 1-15/32 2-3/16 9/16
3362
1/2 1-5/8 2-1/2 9/16
3363
3/4 1-15/16 2-29/32 9/16
3364
12-1/4 3-19/32 3/4
3365
1-1/4 2-11/16 4-1/2 13/16
3366
1-1/2 3-1/8 4-15/16 13/16
3367
23-5/8 5-11/16 7/8
3368
2-1/2 4-3/8 11-1/8 1
3369
35-3/16 12-1/2 1
3371
46-7/16 14-7/8 1-1/8
45° PVC Coated
3341
3/8 1-15/32 1-1/8 9/16
3342
1/2 1-5/8 1-1/4 9/16
3343
3/4 1-15/16 1-7/16 9/16
3344-TB
12-1/4 1-13/16 3/4
3345
1-1/4 2-11/16 2-1/16 13/16
3346
1-1/2 3-1/8 2-11/16 13/16
3347
23-5/8 3-3/16 7/8
3348-TB
2-1/2 4-3/8 3-13/16 1
3349
35-3/16 4-9/16 1
3352
46-7/16 5-3/4 1-1/8
Complies with JIC standards and Federal Specs W-F-406B, W-F-408B
Corrosion Resistant PVC Jacketed Liquidtight Fittings
B
A
C
Straight PVC Coated
Nylon Insulated
Steel or Malleable Iron
NPT hub threads
B
A
C
90° PVC Coated
Nylon Insulated
NPT hub threads
AC
B
45° PVC Coated Nylon Insulated NPT hub threads
www.tnb.ca
B98
Industrial Fittings
T&B Fittings
Liquidtight Flexible Metal Conduit
Fittings
Liquidtight Union for Threaded Hub
Cat. No. Conduit
Size (in.)
Dimensions (in.)
A B
41TB
1/2 1-29/64 1
42TB
3/4 1-15/16 1-1/4
Application
•
To couple threaded end of a fitting or a
pipe to a tapped opening in a box or
enclosure where rotation of fitting or pipe
is limited or restricted
Features
•
Provides high quality bond between
fitting or pipe to the union
•
Provided with resilient seal (A)
•
Resilient seal subjected to controlled
deformation; positive seal and reusability
are assured (B)
•
Unique design centralizes throat
openings of threaded hub and union (C)
•
Permits orientation of fitting in any
predetermined direction for a safe,
functional and neat assembly
•
Provided with taper-threaded hub
for liquidtight assembly (D)
•
Straight pipe threads on gland accept a
straight-or taper-threaded hub on fitting
or pipe to be coupled (E)
•
Suitable for hazardous location use per
CEC Rule J18-106 Class I, Div. 1;
CEC Rule 18-202 Class II, Div. 1;
CEC Rule 18-252 Class II, Div. 2;
CEC Rule 18-302 Class III, Div. 1;
CEC Rule 18-352 Class III, Div. 2;
Standard Material/Finish
Gland Steel/Electro Zinc
Chromate Coated
Body Steel/Electro Zinc
Chromate Coated
‘O’ Ring Buna N/As Molded
Range
•
Hub (External Thread)
1/2 in. and 3/4 in. NPT
•
Gland (Internal Threads)
1/2 in. and 3/4 in. NPS
Conformity
UL 514B
CSA C22.2 No. 18.3
NEMA FB-1
ANSI C80.4
NFPA 70-2008 (ANSI)
Federal Specification W-F-408
Federal Specification W-F-406
Federal Standard H-28 (Threads)
Specifications — Liquidtight Union for Threaded Hub
41 Series
E
C
D
B
Controlled Deformation
of Resilient Seal
Gland
Resilient Seal
A
Body
B
A
Steel, zinc plated and chromated. Ideal for angle fittings where
swing clearance is not available
www.tnb.ca B99
Industrial Fittings
T&B Fittings
Liquidtight Flexible Metal Conduit Fittings
45° Metallic Fittings
Cat. No. Conduit
Size (in.) Hub Thread Dimensions (in.)
A B
3730-TB*
3/8 1/2 — 14 NPT 1-5/32 2-13/32
3731-TB
1/2 1/2 — 14 NPT 1-3/8 2-9/16
3732
3/4 3/4 — 14 NPT 1-5/8 3
3733-TB
11 —1 1-1/2 NPT 1-7/8 3-1/2
3734-TB
1-1/4 1-1/4 — 11-1/2 NPT 2-3/8 4-1/8
3735-TB
1-1/2 1-1/2 — 11-1/2 NPT 2-3/4 4-7/8
3736
22 — 11-1/2 NPT 3-17/32 5-1/2
* Not UL Listed
CSA not applicable
Available with Dura-Plate
®
Finish. Consult your Regional Sales Office for details
90° Metallic Fittings
Cat. No. Conduit
Size (in.) Hub Thread Dimensions (in.)
A B
3740*
3/8 1/2 — 14 NPT 1-5/32 1-5/8
3741
1/2 1/2 — 14 NPT 1-3/8 1-3/4
3742
3/4 3/4 — 14 NPT 1-5/8 2-1/4
3743-TB
11 — 11-1/2 NPT 1-7/8 2-9/16
3744-TB
1-1/4 1-1/4 — 11-1/2 NPT 2-3/8 3-1/4
3745
1-1/2 1-1/2 — 11-1/2 NPT 2-3/4 3-1/2
3746-TB
22 — 11-1/2 NPT 2-17/32 4-1/8
* Not UL Listed
CSA not applicable
Available with Dura-Plate
®
Finish. Consult Regional Sales Office for details
Liquidtight K.O. Plugs
Cat. No. Size (in.) Dimensions (in.)
A
5710
1/2 1-9/32
5711
3/4 1-1/2
5712
11-27/32
5713
1-1/4 27/32
5714
1-1/2 2-1/2
5715
23-3/32
5716
2-1/2 3-21/32
5717
34-19/64
5718
45-19/64
UL Listed liquidtight
CSA not applicable
Meets Coast Guard Regulation CG293
B
A
A
B
A
NEMA 3R, 4, 6 & 13
Temperature range — -30°C to 105°C.
www.tnb.ca
B100
Industrial Fittings
T&B Fittings
Liquidtight Flexible Metal Conduit
Fittings
Sealing Ring with Stainless Steel Retainer
Cat. No. Conduit
Size (in.)
Dimensions (in.)
A B
5299**
1/4 0.80 0.11
5261**
3/8 0.95 0.11
5262
1/2 1.16 0.18
5263
3/4 1.49 0.19
5264
11.75 0.19
5265
1-1/4 2.15 0.22
5266
1-1/2 2.42 0.23
5267
22.92 0.23
5268
2-1/2 3.44 0.23
5269
34.08 0.23
5270
45.29 0.31
** UL not applicable
Application
•
When used with an externally threaded
fitting provides a tight seal against oil,
fumes or moisture at the knockout opening
Features
•
Locks resilient sealing material in steel.
•
Steel retainer protects seal from extruding
out under torque and limits compression to
an optimum predetermined value; provides
high quality seal
•
Resilient material flows and seals
rough surfaces
Standard Material
Retainer Stainless Steel
Sealing Material Buna N
Range
•
1/2 in. thru 4 in. Hub Size
Specifications — Liquidtight Sealing Gaskets
5262 Series
Stainless Steel Retainer
Resilient Seal
Resilient Sealing
Material Locked in Steel Retainer
5262 Series
A
B
Thickness
NEMA 3R, 4, 6 & 13
For use with T&B Fittings. Sealing material resists oil, coolants,
and hydraulic fluids as well as water
www.tnb.ca B101
Industrial Fittings
T&B Fittings
Liquidtight Flexible Metal Conduit Fittings
A
B
T&B Liquidtight flexible metal and Liquidtight flexible nonmetallic
fittings with internal threads to accept AN-MS fitting shells
Material: Steel
Liquidtight Flexible Metal/MS Fittings
Cat. No.
Internal Thread
Trade
Size (in.)
AN-MS conn.
Shell Size
Thread
Size
Dimensions (in.)
A B
LTA03810
3/8 10SL, 12, 12S 5/8 — 24 UNEF-2B 1-5/32 1
LTA03814
3/8 14, 14S 3/4 — 20 UNEF-2B 1-5/32 1
LTA05014
1/2 14, 14S 3/4 — 20 UNEF-2B 1-5/16 1-1/4
LTA05016
1/2 16, 16S 7/8 — 20 UNEF-2B 1-5/16 1-1/4
LTA05018
1/2 18 1 — 20 UNEF-2B 1-5/16 1-1/4
LTA07516
3/4 16, 16S 7/8 — 20 UNEF-2B 1-7/16 1-1/2
LTA07518
3/4 18 1 — 20 UNEF-2B 1-7/16 1-1/2
LTA07520
3/4 20, 22 1-3/16 — 18 UNEF-2B 1-7/16 1-1/2
LTA10020
120, 22 1-3/16 — 18 UNEF-2B 1-3/4 1-23/32
LTA10024
125, 28 1-7/16 — 18 UNEF-2B 1-3/4 1-23/32
PG Metric Thread Liquidtight Fittings
Cat. No.
Flexible
Conduit
Size (in.)
Metric
PG
Thread
Dimensions (mm)
A B C
Nylon insulated straight fittings
7330**
1/4 936 21 12
7360**
5/16 936 26 12
7361*
3/8 11 40 29 14
7362*
3/8 13.5 40 29 14
7363*
1/2 16 41 35 14
7364*
3/4 21 43 42 14
7365
129 56 47 19
7366
1-1/4 36 67 58 21
7367
1-1/2 42 72 69 21
7368
248 81 83 21
Nylon insulated 45° angle fittings
7341
3/8 11 27 29 14
7342
3/8 13.5 27 29 14
7343
1/2 16 30 35 14
7344-TB
3/4 21 34 42 14
7345
129 44 47 19
7346
1-1/4 36 51 58 19
7347
1-1/2 42 60 69 21
7348-TB
248 73 76 24
Nylon insulated 90° angle fittings
7351
3/8 11 37 29 14
7352
3/8 13.5 37 29 14
7353
1/2 16 40 35 14
7354
3/4 21 44 42 14
7355
129 56 47 21
7356
1-1/4 36 70 58 21
7357
1-1/2 42 75 69 21
7358
248 87 83 24
UL Listed liquidtight
*CSA Certified dusttight and watertight
**UL not applicable and not CSA Certified
B
A
C
B
A
C
AC
B
Fittings for Liquidtight flexible metal conduit with metric threads of
PG Form (DIN 40430)
www.tnb.ca
B102
Industrial Fittings
T&B Fittings
Liquidtight Flexible Metal Conduit
Fittings
ISO Metric Thread Liquidtight Fittings
Cat. No.
Flexible
Conduit
Size (in.)
Metric
ISO
Thread
Dimensions (mm)
A B C
Nylon insulated straight fittings
9330
1/4 16 36 21 12
9331
1/4 20 36 21 12
9306
5/16 16 36 26 12
9360
3/8 16 40 29 16
9361
3/8 20 40 29 16
9362
1/2 20 42 35 16
9363
3/4 25 45 42 16
9364
132 54 47 23
Nylon insulated 45° angle fittings
9340
3/8 16 27 29 16
9341
3/8 20 27 29 16
9342
1/2 20 27 35 16
9343TB
3/4 25 31 42 16
9344
132 34 47 23
Nylon insulated 90° angle fittings
9350
3/8 16 35 29 16
9351
3/8 20 35 29 16
9352TB
1/2 20 39 35 16
9353TB
3/4 25 43 42 16
9354TB
132 48 47 23
UL Listed Liquidtight
NPT/MS Fitting Adaptors
Cat. No. N.P.T.
Thread (in.)
AN-MS
Fitting
Shell Size
Thread
Size
Dimensions (in.) Fig.
A B
MSA05014
1/2
14, 14S 3/4 — 20 UNEF-2B 1.000 1.175 1
MSA05016
16, 16S 7/8 — 20 UNEF-2B 1.000 1.175 2
MSA05018
18 1 — 20 UNEF-2B 1.125 1.175 3
MSA07516
3/4
16, 16S 7/8 — 20 UNEF-2B 1.250 1.356 1
MSA07518
18 1 — 20 UNEF-2B 1.250 1.300 1
MSA07520
20, 22 1-3/16 — 18 UNEF-2B 1.375 1.300 3
MSA10020
1
20, 22 1-3/16 — 18 UNEF-2B 1.500 1.431 1
MSA10024
24, 28 1-7/16 — 18 UNEF-2B 1.625 1.313 3
MSA10032
32 1-3/4 — 18 UNS-2B 2.000 1.576 3
MSA10036
36 2 — 18 UNS-2B 2.250 1.738 3
Not CSA Certified
B
C
A
B
A
C
B
A
C
Fittings for Liquidtight flexible metal conduit with metric threads of
ISO Form (BS-4568-SA BS 162)
A
B
Mechanical adapter with internal threads to mate with NPT
threaded fittings and MS type fittings
Material: aluminum
