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Heyco® Liquid Tight Flexible Conduit & Fittings Selection Guide »

Heyco-Flex™ Liquid Tight
Conduit Fittings

  • Features
  • Part Numbers and Specifications

For Flexible, Nonmetallic Liquid Tight Heyco-Flex I Conduit
and Heyco-Flex II Tubing

Straight-Thru, NPT Hubs

  • 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 into an NPT threaded hole.
  • Convex ferrule ensures liquid tight seal.
  • 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 during assembly and can be easily removed by pulling while turning in a clockwise direction.
  • Multiple sizes for use with Heyco-Flex Conduit and Tubing.
  • Protection class IP 68 up to 70 psi (5 bar) water pressure.
  • Suitable for indoor/outdoor use; for original equipment manufacturers or field installers.
  • Use of a sealing washer may be required for wet locations.
  • All nylon construction resists salt water, weak acids, gasoline, alcohol, oil, grease, and common solvents. (This feature is not assessed by UL certification and testing.)
  • 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.
  • Black connectors up to 1˝ provided with nylon locknut, packed separately. Larger than 1˝ provided with O-ring and metal locknut.
  • Gray connectors provided with assembled O-ring and metal locknuts.
  • Metal locknuts: NPT, PG, and Metric.
    Nylon locknuts: NPT, PG, and Metric.
  • Click here for O-rings.

QuickSpecs

Material   Nylon 6/6
Certifications Listed under Underwriters' Laboratories File E28430
Certified by Canadian Standards Association File 84579 & 81067
Flammability Rating   94V-2
Material Temp. Index   Maximum temperature on part not to exceed 221°F (105°C)
IP Rating   IP 68 up to 70 psi (5 bar) water pressure
FITS
CONDUIT/
TUBING
TRADE SIZE
  PART NO. DESC. THREAD
SIZE
PART DIMENSIONS
BODY AND SEALING UNIT
CAD
Black Gray A
Clearance
Hole
B
Max. O.A.
Length
C
Thread
Length
D
Wrenching
Nut Thk.
E
Wrenching
Flat Size
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 6,3 1.328 33,7 CAD
1/2 8402 8403 HFC 1/2 CAD
3/4 8404 8405 HFC 3/4 3/4˝ NPT 1.109 28,1 2.040 52,8 .630 16,0 .250 6,3 1.562 39,6 CAD
1 8406 8407 HFC 1 1˝ NPT 1.375 34,9 2.250 57,2 .780 19,8 .250 6,3 1.812 46,0 CAD
1-1/4 8638 8639 HFC 1-1/4 1-1/4˝ NPT 1.734 44,0 2.070 52,6 .685 17,4 .250 6,3 2.150 54,6 CAD
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 CAD
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 CAD

Standard colors black or gray.
*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-PG7
PG7 .492 12,5 1.131 28,7 .449 11,4 .209 5,3 1.001 25,4 CAD

Standard color black.
**Recognized under UL File E121095.

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