Cable Transits & Duct Sealing

Cable transits and duct-sealing systems help create secure, protected cable entries where cables pass through ducts, walls, floors, cabinets, enclosures or other structures. Jointing Tech supplies cable-transit and duct-sealing products for applications where protection against water, dust, weather, vapours or other environmental hazards is required.

Whether you are sealing a cable duct, protecting an entry point or specifying a more advanced cable-transit system, the right solution must match the cable dimensions, opening size, installation environment and performance requirements. Our team can support product selection for utility, industrial, infrastructure, rail and specialist applications.

A cable transit or duct seal is selected to fill, close or protect the space around cables as they pass through an opening. Depending on the product system, this can help reduce the ingress of water, dust, debris, humidity, gases or vapours. Some systems may also be designed for more demanding applications involving fire, pressure or submerged conditions, subject to the specific product certification and installation requirements.

Before selecting a cable sealing solution, confirm the number of cables, cable outside diameters, duct or opening dimensions, wall or structure type, installation location and the required level of protection. It is also important to establish whether future cable additions are likely, as this may affect the most suitable system.

Duct seals can be particularly important where cable routes enter substations, buildings, cabinets, pits, chambers or equipment enclosures. A correctly selected and installed sealing system can support the long-term reliability of the cable route by helping to manage environmental ingress at these vulnerable entry points.

Always follow the manufacturer’s installation instructions. The performance of a cable transit or duct seal depends on the compatibility of all components, correct preparation of the cable and opening, and accurate installation. For specialist environments, confirm the required certification, ratings and project specification before placing an order.

To request support, send the cable outside diameters, number of cables, duct or aperture dimensions, installation material, environment and required performance criteria.

FAQs

What is a cable transit?

A cable transit is a system used to seal and protect cables where they pass through a wall, floor, duct, enclosure or other opening.

Why is duct sealing important?

Duct sealing can help prevent water, dust, debris, vapours and other environmental contaminants entering a cable route or enclosure.

How do I choose the right duct seal?

Provide the number and outside diameter of cables, duct or opening size, installation environment and the level of sealing or protection required.

Can cable transits be used for fire or water protection?

Some systems are designed and certified for specific fire, water or pressure conditions. Confirm the required performance and verify the individual product specification before ordering.

Need help choosing a cable transit?

Contact Jointing Tech with your cable, duct and environmental details for technical advice.

Cable Transits & Duct Sealing

Cable Transits & Duct Sealing

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