LT75P - ABB - Datasheet.Directory

101

T&B Conduit Fittings

Liquidtight Flexible Nonmetallic Conduit Fittings

Application

• To provide a liquidtight, dustight

connection between flexible,

nonmetallic conduit and a box

or an enclosure.

Features

• Serrated design provides high

mechanical pullout strength (A).

• Unique component parts

(body/gland) design insures

positive seal between conduit

and fitting (B).

• Tapered thread hub and sealing ‘O’

ring provide a liquidtight/dust tight

seal to a box or an enclosure (C).

• High strength, chemical resistant,

nonburning, nondripping

thermoplastic construction.

• Smooth insulated body throughout

for maximum dielectric strength.

• Captive ‘O’ ring and reduced number

of parts save installation time (D).

Standard Material

Body Thermoplastic

Gland Thermoplastic

‘O’ Ring Neoprene

Locknut Steel (Case Hardened)

Standard Finish

Body, Gland & ‘O’ Ring

As Molded

Locknut Electro Zinc

Range

• Conduit Size 1/2” thru 1-1/4”

• Hub Size 1/2” thru 1-1/4”

N.P.T.

• Type A Liquidtight Flexible Nonmetallic

Conduit shall be seamless type

adequately reinforced with one or

more layers of flexible braided

reinforcing cords. Conduit jacket shall

be of non-kinking oil resistant/water

resis-tant flame retardant material

suitable for ambient environmental

conditions.

• Where Type A Flexible Nonmetallic

Conduit terminates into a threaded

or threadless opening, the conduit

shall be cut square, deburred,

installed with sufficient slack to reduce

effects of vibration and assembled

with approved fittings such as series

6302 or 3720 manufactured by

Thomas & Betts. Fittings shall be of

malleable iron/steel/thermoplastic

construction with taper-threaded hub

and:

(1) Ferrous metallic fittings shall be

electro-zinc plated inside outside

and equipped with a nylon

insulated throat.

(2) Thermoplastic fittings shall be of

high impact chemical resistant,

nonburning, nondripping

thermoplastic.

(3) Fittings shall be provided with a

captive, moisture resistant/oil

resistant synthetic rubber gasket.

Specifications — Type A Conduit Fittings

Suggested Specifications for Type A Conduit and Fittings

(A) Left-Handed Threads

Gland

Body

Sealing ‘O’ Ring

Locknut

Liquidtight Flexible

Nonmetallic Conduit

Gland

Body

Sealing ‘O’ Ring

(C)

Taper Threaded Hub

(A & B)

(D)

Captive Sealing

‘O’ Ring

Series 6302

Liquidtight Flexible Nonmetallic

Conduit Fittings

Series 6322

Liquidtight Flexible Nonmetallic

Conduit Fittings

102

T&B Conduit Fittings

Liquidtight Flexible Nonmetallic Conduit Fittings

Thermoplastic Fittings for Liquidtight Flexible

Nonmetallic Conduit Type A

Dimensions (in.)

ABC

Conduit Cross

Cat. No. Size Corners

Straight Fitting

6302 1/2” .60 1.68 1.48

6303 3/4” .61 1.85 1.76

6304 1” .77 1.89 2.10

6305 1-1/4” .79 2.30 2.67

90° Angle Fitting

6322 1/2” .60 1.56 1.48

6323 3/4” .61 1.74 1.76

6324 1” .77 1.78 2.10

6325 1-1/4” .79 2.13 2.67

Corrosion Resistant Applications

Meets Coast Guard CG293

*Use with our LNM-P Conduit on p. 144

Liquidtight Flexible Nonmetallic Conduit Type A

Conduit Dimensions (in.)

Cat. No. Size Hub Thread A B

3720-TB* 3/8 1/2—14 NPT 1-5/32 2

3721-TB 1/2 1/2—14 NPT 1-3/8 2-1/8

3722-TB 3/4 3/4—14 NPT 1-5/8 2-1/4

3723 1 1—11-1/2 NPT 1-7/8 2-1/2

3724-TB 1-1/4 1-1/4—11-1/2 NPT 2-3/8 2

3725 1-1/2 1-1/2—11-1/2 NPT 2-3/4 3-3/8

3726 2 2—11-1/2 NPT 3-17/32 3-5/8

* Not U.L. Listed

For Dura-Plate™ Finish, add prefix 040- to Cat. No. Consult Customer Service for details.

90° Angle Fitting

Designed especially for the Type A, all-plastic

raceways now in use for dynamic machine tool

applications.

Fittings are constructed of a high-strength,

chemically resistant thermoplastic tougher than

the raceway itself.

Neoprene sealing ring is furnished with

fitting providing a liquidtight seal for knockout

applications.

Straight Fitting

• Nylon insulated throat.

• T&B Sealing Ring to seal knockouts.

• Steel or malleable iron.

• U.L. Listed.

• NPT hub threads to seal in female threads.

• High mechanical pull-out strength.

• Provides positive seal against water, oil and

dust.

107

T&B Conduit Fittings

Liquidtight Flexible Nonmetallic Conduit Fittings

Specification Sheet—Bullet®Liquidtight Fittings for

Liquidtight Flexible Nonmetallic Conduit and Tubing

Box or

Enclosure

Wall

Conduit

or Tubing

Application:

A series of nonmetallic fittings designed

to provide a liquidtight seal when

terminating liquidtight nonmetallic

conduit (U.L. Type B) or liquidtight

nonmetallic tubing to a box or enclosure

with knockout opening or a threaded

hub.

Plastic Bullet Liquidtight Fittings

Feature:

• Fitting assembles to conduit without

disassembly and is designed to be

installed with positive installation

criteria (gland bottoms on body

shoulder).

• Rugged low profile nonmetallic body

and gland construction (1); the fitting is

equipped with a steel locknut to firmly

secure fitting to box or an enclosure

and a sealing “O” ring.

• Captive sealing “O” ring (2) with

predetermined compression for a

reliable seal at enclosure.

• Fitting ferrule designed to accept

variations in conduit inside diameter

and is tolerant of field conduit cuts (3).

• Ferrule profile designed to reduce

friction between conduit I.D. and

ferrule (4) allowing conduit to seat

properly for an effective seal.

• Outer surface of clamping fingers

provided with friction reducing ridges

(5) for ease of installation; the inner

surface is designed with conduit

biting teeth to enhance clamping and

sealing action (6).

• Performance of fittings tested to

simulate adverse installation

conditions.

• Provides a double sealing action (7).

• Elongated gland nut profile (8)

designed to provide additional strain

relief for 90° pull and an easy hand

grip.

• Performance of fitting unaffected by

exposure to detergents, cleaners, and

sanitizers commonly encountered in

food processing plants and typical

industrial environment; also

unaffected by cutting fluids, wiring

pulling compounds and Marine

environment.

• Meets industry standards for cold

impact and simulated hammer blow.

Standard Material/Finish:

• Body Gland—weather stabilized

thermoplastic (black).

• “O” Ring—nitrile (blue)

• Locknut—Steel/electro-zinc plated

• Material temperature rating—

thermoplastic -40°C to 105°C.

• Material Flammability Rating:

U.L.94-V2.

Conformity

• CSA C22.2 #227.2 & CSA

C22.2 #227.3

• U.L.514B

• Watertight requirements of NEMA

Type 4 and Type 4X.

• Federal Standard H-28 (NPT threads)

• There is no CEC Rule to use

Nonmetallic liquidtight conduit and

fittings in Class I, Zone 2 or Class I,

Division 2;

Rule 18-202 (4) (b) Class II, Division 1;

Rule 18-252 (4) Class II, Division 2; Rule

18-302 (4) Class III, Division 1.

108

T&B Conduit Fittings

Liquidtight Flexible Nonmetallic Conduit Fittings

Plastic Bullet®Liquidtight Fittings for T&B NMC

Nonmetallic Liquidtight Conduit Type B and T&B NMT Flexible Tubing

C ±.015 (0.40) Min.

A ±.015 Across Throat E F*

Trade (.040) *B ±.035 (0.90) Corners Dia. D Thread (in.) (mm)

Cat. No. Fig. Size in. (mm) in. (mm) in. (mm) in. (mm) NPT Approx.

LT38P 1.570 1.595 (40.51) 1.354 .417 —

LT438P 2 3/8 2.012 (51.10) 1/2-14 1.534 (38.95)

LT938P 3(14.48) 1.380 (35.05) (34.39) (10.59) 1.880 (47.75)

LT50P 1.570 1.636 (41.55) 1.448 .550 —

LT450P 2 1/2 2.092 (53.14) 1/2-14 1.590 (40.39)

LT950P 3(14.48) 1.489 (37.82) (36.78) (13.97) 1.986 (50.44)

LT75P 1.582 1.757 (44.63) 1.740 .740 —

LT475P 2 3/4 2.452 (62.28) 3/4-14 1.821 (46.25)

LT975P 3(14.78) 1.790 (45.47) (44.20) (18.80) 2.212 (56.00)

LT100P 1.726 1.923 (48.84) 2.068 .940 —

LT4100P 2 1 2.684 (68.17) 1-11-1/2 2.034 (51.66)

LT9100P 3(18.44) 2.104 (53.44) (52.53) (23.88) 2.508 (63.70)

LT125P 1.750 2.164 (54.97) 2.494 1.257 —

LT4125P 2 1-1/4 3.264 (82.91) 1-1/4-11-1/2 2.385 (60.58)

LT9125P 3(19.05) 2.564 (65.13) (63.35) (31.93) 2.856 (72.54)

LT150P 1.767 3.353 (59.77) —

LT4150P 2 1-1/2 3.605 (91.57) 2.784 1.453 1-1/2-11-1/2 2.604 (66.14)

LT9150P 3(19.48) 2.854 (72.49) (70.71) (36.91) 3.144 (79.86)

LT200P 1.794 2.605 (66.17) 3.362 1.883 —

LT4200P 2 2 4.210 (106.93) 2-8 3.050 (77.47)

LT9200P 3(20.17) 3.432 (87.17) (85.39) (47.83) 3.675 (93.34)

* After Assembly

Figure 1 Figure 2 Figure 3

E Thread E Thread E Thread

Suggested Specification:

Where liquidtight flexible nonmetallic

conduit (U.L. and CSA Type B) or

liquidtight flexible nonmetallic tubing

is terminated to a box or enclosure, the

nonmetallic fittings used shall be able to

be installed without disassembly and

provide a positive installation criteria. In

the installed condition, the fitting must

provide a seal meeting watertight

requirements of NEMA Type 4 and Type

4X. The performance of fittings shall be

unaffected by exposure to detergents,

sanitizers, cutting fluids, wire pulling

compunds and oil-based industrial

paints. The fitting must also be capable

of withstanding marine environment and

cold impact simulating a hammer blow.

Installed fittings shall be of the

elongated gland type as

manufactured by Thomas & Betts

LT38P series.