When To Use A Liquid Tight Conduit

By | January 15, 2015

PVC Coated Steel Liquid Tight ConduitConduits are used in order to make the installation of electrical cables easier. But in order to reap the added advantage of protection for wires and cables, it is imperative to know which conduit to use for a specific application. In some cases, the manufacturer issues recommendations for installation. For any of the following applications/situations listed below or in the absence of manufacturer’s recommendations, it will serve you well to use a liquid tight conduit.


Liquid tight conduits are perfect for use in environments that are most likely to get moist or wet. Used in conjunction with liquid tight fittings, this conduit can keep moisture at bay.If the application requires the use of liquid tight fittings with these conduits, make sure that the fittings are threaded onto the connection or, alternatively, use a junction box.


This type of conduit can also be used in applications wherein the wires/cables may be exposed to corrosive elements. One example of such an application is using this conduit for condensers of air conditioning units.


Use this type of conduit if you are installing wires or cables for external applications. Specifically, you should use a metal version of this conduit which has a PVC outer sheathing as well as stabilizers that give added protection against the elements, including the sun’s ultraviolet rays.


This type of conduit is also suitable for applications that require bending as well as applications wherein vibration is expected. This type of conduit has an inner core made out of electro-galvanized steel that offers a substantial amount of resistance to both bending and vibration. The conduit’s core also has a plasticized PVC coat which offers the benefits of oil resistance as well as optimal performance in high temperature applications.


Liquid tight conduits also offer ample protection against dust and some types of liquids. On top of that, these conduits have a high amount of mechanical strength, making them the better option when making a secure connection is essential.


Use these conduits if your application requires burying cables beneath the ground. Liquid tight conduits can provide adequate protection against moisture as well as crushing, even when buried underground. However, it is crucial to note that the conduit you should choose to use must have a diameter not exceeding an inch. Conduits with a larger diameter are not suitable for concrete encasement.


Finally, these conduits may be used for low heat applications – dry heat temperature not exceeding 80 degrees Celsius and damp heat not exceeding 60 degrees Celsius.

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