Heyco-Flex™ “Quick Twist” Liquid Tight Conduit Fittings Straight-Thru, NPT Hubs
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Features |
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For use with Heyco-Flex™ I and II
Conduit and Tubing
- NPT threaded fittings are UL approved for use with Heyco-Flex I & II Conduit and Tubing.
- One-piece solution with smooth internal surfaces provides for easier wire routing, protection, and installation.
- All nylon construction is resistant to salt water, weak acids, gasoline, alcohol, oil, grease, and common solvents. This feature is not assessed by UL certification and testing.
- Easy, permanent assembly: the installer twists the tubing over the connector ferrule, until the tubing clicks into place. It’s that easy!
- No tools needed for installation.
- Unique locking fingers accommodate various panel thicknesses.
- Suitable for a wide array of electrical applications:
- Commercial and Industrial HVAC Systems
- Motorized Equipment
- Enclosed Power Sources
- Garage Door Openers
- Major Appliances
- If using a tapped hole, teflon tape is needed on the treads of the connector, for all other applications an O-ring and Locknut are needed to attain liquid tight.
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| Material |
6/6 Nylon |
| Certifications |
See  and  Listed File Numbers under charts |
| Flammability |
94V-2 |
| Material Temperature Index |
257°F (125°C)–Maximum temperature on part not to exceed 221°F (105°C) |
| Ingress Protection |
NPT Threaded style is liquid tight. Consult Heyco for details. |
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Heyco-Flex™ “Quick Twist”Liquid Tight Conduit Fittings Straight-Thru, NPT Hubs
For use with Heyco-Flex™ I and II Conduit and Tubing |
Specifications |
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Fits
Conduit / Tubing
Trade Size
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Part No.
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Desc.
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Thread
Size |
Part Dimensions
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CAD |
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A
Clearance Hole Dia.
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B
Max O.A.
Height
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C
Thread Length
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D
Wrenching Nut
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E
Wrenching Flats
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| Black |
Gray |
in.
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mm.
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in.
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mm.
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in.
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mm.
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in.
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mm.
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in.
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mm.
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1/4
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8517
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8518
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*HFC 1/4 twist
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1/4 NPT |
.540
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13,7
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1.559
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39,6
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.465
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11,8
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.200
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5,1
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.750
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19,0
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 |
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3/8
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8487
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8488
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HFC 3/8 twist
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1/2 NPT |
.875
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22,2
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1.720
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43,7
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.625
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15,9
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.200
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5,1
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1.180
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30,0
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1/2
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8493
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8494
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HFC 1/2 twist
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1/2 NPT |
.875
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22,2
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1.720
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43,7
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.625
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15,9
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.200
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5,1
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1.180
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30,0
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3/4
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8497
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8498
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HFC 3/4 twist
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3/4 NPT |
1.109
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28,2
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1.840
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46,7
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.625
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15,9
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.200
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5,1
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1.370
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34,8
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Standard colors black and gray. Consult Heyco for other colors.
Listed under Underwriters' Laboratories File E28430
* Recognized under the Component Program of Underwriters' Laboratories File E121095
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Links & Downloads
- Locknuts not included. To order metal or nylon locknuts separately, see pages 1-11 and 1-12.
- Finishing collars to neaten rough cut tubing ends. See page 1-7.
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