Heyco Conduit, Tubing & Fittings Heyco-Flex™ Nylon Liquid Tight Conduit Fittings

1. Push on with a twist     2. Hand tighten

Material: Nylon 6/6

Certifications:

File E28430

File 84579 and 81067

Flammability Rating: 94V-2

Material Temperature Index: Maximum temperature on part not to exceed 105°C (221°F)

Ingress Protection Rating: IP 68 up to 70psi (5 bar) water pressure

 
  • Multiple sizes for use with Heyco-Flex™ conduit and tubing.
  • No disassembly required. Instead, the installer simply pushes the conduit or tubing onto the ferrule, then tightens the domed sealing nut. This completed assembly can then be secured in the panel by the locknut (or first secure the connector into a threaded hole).
  • Convex ferrule ensures liquid tight seal.
  • All nylon construction resists salt water, weak acids, gasoline, alcohol, oil, grease and other common solvents. This feature is not assessed by UL certification and testing.
  • No threading of the conduit or tubing is required to install. This eliminates the possibility of cutting the conduit and creating leak paths.
  • Complete conduit/connector system is reusable. Conduit will not wind tight onto the connector and can be easily removed without cutting and without damaging the connector.
  • Use of a sealing washer may be required for .
  • If using a tapped hole, Teflon® tape is needed on the threads of the connector, for all other applications an O-ring and Locknut are needed to attain liquid tight.
  • Suitable for indoor/outdoor use; for original equipment manufacturers or field installers.
  • Hardware:
    • Black connectors up to 1" are provided with a nylon locknut; packed separately
    • Gray Connectors and Black connectors (larger than 1") are provided with an o-ring and a metal locknut as one assembled unit
 
Heyco-Flex™ Liquid Tight Conduit Fittings
Straight-Thru, NPT Hubs
For Flexible, Nonmetallic Liquid Tight Heyco-Flex™ I Conduit and Heyco-Flex™ II Tubing
Fits
Conduit
Trade
Size		 Part Number Description Thread
Size		 Part Dimensions Sealing
Washer
Part No.
Color A
Clearance Hole		 B
Max O.A Length		 C
Thread Length		 D
Wrenching Nut Thk.		 E
Wrenching Flats
Black Gray in. mm. in. mm. in. mm. in. mm. in. mm.
3/8 8400 8401 HFC 3/8 * 1/2 NPT   .875 22,2 1.960 49,8 .630 16,0 .250 6,4 1.328 33,7 3260
1/2 8402 8403 HFC 1/2 *
3/4 8404 8405 HFC 3/4 3/4 NPT 1.109 28,2 2.040 52,8 .630 16,0 1.562 39,6 3261
1 8406 8407 HFC 1 1 NPT 1.375 34,9 2.250 57,2 .780 19,8 1.812 46,0 3262
1-1/4 8638 8639 HFC 1-1/4 1-1/4 NPT 1.734 44,0 2.070 52,6 .685 17,4 2.150 54,6 –
1-1/2 8640 8641 HFC 1-1/2 1-1/2 NPT 1.984 50,4 2.280 57,9 .780 19,8 .275 7,0 2.400 61,0 –
2 8642 8643 HFC 2 2 NPT 2.469 62,7 2.260 66,0 .850 21,6 .312 7,9 2.980 75,6 –
* Fittings used to attach two different conduit sizes to the same size hole.
 
PG Threaded Hub for 1/4" Heyco Flex II Tubing
1/4 8398 HFC 1/4 PG-7 ** PG-7   .492 12,5 1.131 28,7 .449 11,4 .209 5,3   1.001 25,4 3258
** Recognized under UL file E121095
 
Sealing Washers

Material: Thermoplastic Elastomer

Flammability Rating: 94V-0

Material Temperature Index: 125°C (257°F)–Max. temperature on part not to exceed 105°C (221°F)

  • For use with Heyco-Flex™ Fittings.
  • Liquid tight, dust tight and oil tight at enclosure.
  • Suitable for wet locations requiring a separate gasket between the box and fitting.
  • Also suitable for other panel sealing applications.
  • Easy to install since washers seal off on the perimeter, not on the connector threads.
  • Special double sealing ridges compensate for minor unevenness at enclosure.
 
Heyco® Sealing Washers
Will Fit These
Electrical Fitting
NPT Trade Sizes		 Part
Number		 Description Part Dimensions
A
Inside Diameter		 B
Outside Diameter		 C
Thickness
Black in. mm. in. mm. in. mm.
1/4 3258 SW 1/4   .54 13,7   .80 20,2 .13 3,2
3/8 3259 SW 3/8   .67 17,0 1.01 25,7
1/2 3260 SW 1/2   .85 21,6 1.24 31,5
3/4 3261 SW 3/4 1.03 26,2 1.50 38,1 .14 3,4
1 3262 SW 1 1.28 32,5 1.77 45,0 .18 4,6
1-1/4 3264 SW 1-1/4 1.66 42,2 2.16 54,9 .16 4,1
1-1/2 3265 SW 1-1/2 1.86 47,2 2.44 62,0
2 3257 SW 2 2.32 58,9 2.93 74,4 .18 4,6