Short answer: cable conduit models should be selected by conduit type, nominal diameter, material, wall thickness, flexibility, bending radius, IP rating and installation environment.
| Rigid steel conduit | Used for mechanical protection in industrial and building cable routes. Confirm diameter, coating and thread type. |
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| Flexible metal conduit | Used where vibration, movement or machine connection requires flexible cable protection. |
| PVC conduit | Used for light-duty indoor routing and corrosion-sensitive areas. Confirm UV and temperature limits for outdoor use. |
| Liquid tight conduit | Used where water, dust or oil exposure must be controlled. Confirm fitting and sealing compatibility. |
Cable conduit should not be selected only by diameter. Material, bending requirement, fittings and environment can change the correct model.