Roxtec Multidiameter


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Flexible Cable and Pipe Transits

Email Address
PO Box 540,
SE-371 23 Karlskrona,
Fax Number

Roxtec is the world’s largest manufacturer of modular-based cable and pipe transits for the shipbuilding and naval industries. All over the world, shipbuilders use Roxtec sealing solutions to ensure safety and long-term operational reliability.

Cable and pipe-sealing technology

Roxtec was founded in Sweden in 1990 with the invention of Multidiameter™, a flexible solution based on sealing modules with removable layers. It revolutionized the complicated process of cable and pipe installation, allowing designers and users to perform their tasks without knowing the size or number of cables in advance.

The technology enables sealing of cables and pipes of various sizes and materials, which minimizes the need for different parts and reduces installation time. It makes planning easier and simplifies the work of designers and installers.

Modular mechanical cable and pipe-sealing technology

The Roxtec sealing system is a modular-based mechanical sealing solution. It is available for various applications – and for multiple as well as single pipe penetrations. With six basic sealing blocks, it is possible to seal cables and pipes from 4mm to 99mm in diameter.

The Roxtec transits for cables, metal pipes and plastic pipes protect people and investments against risks caused by fire, water, gas and explosions.
Roxtec Multidiameter™ enables a perfect fit regardless of the cable or pipe dimension; logistics are simplified thanks to a drastic reduction of inventory.
The Roxtec RS PPS/S seals allow the use of plastic pipes.
Round Roxtec transits are available for installations in round openings or sleeves; the pneumatic pipes are routed and sealed through the same opening.
The Roxtec RS PPS/S seal provides fire protection for a variety of thermo-plastic pipes.

The sealing modules are inserted around the cables or pipes in frames that are either welded or bolted into the structure. The frames are available in different shapes, materials and sizes for different applications. The system is then sealed with a compression unit, a Roxtec wedge, which tightly compresses the modules.

Sealing technology for ships’ penetrating cables, steel pipes and plastic pipes

The Roxtec sealing system is used to seal all types of penetrating cables, steel pipes and plastic pipes passing through bulkheads and decks, in and between different sections and constructions such as machine rooms, storage rooms, living compartments and the bridge. It is also used in various types of cabinets and enclosures.

Roxtec seals ensure protection against fire, water, gas and electro-magnetic interference. The system is well suited for sealing of hydraulic pipes, since the rubber absorbs vibrations. It is a flexible and high quality sealing system designed to withstand very tough conditions.

Roxtec products are tested and approved for use in A class and H class-rated sections according to IMO Resolution A.754 (18) and SOLAS. The Roxtec sealing system is also approved according to different military standards in various countries. Roxtec products are certified by a wide range of classification societies such as Lloyd’s, ABS, Bureau Veritas and DNV.

Roxtec benefits

  • Fast deliveries and local support: Roxtec is present worldwide to ensure product availability and local service and support
  • Quick and easy installation: there is no need to know the exact dimension of each cable, because as each module can handle a variety of cable sizes, the installations can be finished right away; the wedge, which is used to compress the modules and close the penetration, is quick and easy to install
  • Capacity for future expansion: thanks to the Roxtec invention Multidiameter™, it is possible to add extra capacity for cables and pipes from the start; new cables or pipes can easily be added without adding any further items or any need for welding, and the seal can be re-opened and closed repeatedly without jeopardizing integrity or safety

Roxtec worldwide

Roxtec serves and supports customers in more than 70 markets through 14 subsidiaries and a network of local distributors. Roxtec sales and support staff around the world help customers find the solution that corresponds to their specific needs. The extensive R&D resources of Roxtec, with design departments and test labs, give the company an opportunity to continuously perform tests, develop products and improve solutions.

Contact Roxtec International regarding technical specifications, design assistance, product enquiries, deliveries and installation training.

Press Releases

  • Roxtec Signs New Wind Farm Deal

    Bury-based international safety seal firm Roxtec has signed another major deal to supply its products to the wind farm industry. Swedish-owned Roxtec manufactures seals to protect electrical cables and pipes from a range of hazards including fire, flooding and explosion. It has signed a

  • Roxtec Extends its Compact Cable Seal Range

    Cable seal provider Roxtec launches the Roxtec ComSeal™ 30/6 – a lightweight seal for power cables going into converters, generators and cabinets. It is designed for up to six power cables in the range 28mm-43mm. "The new Roxtec ComSeal 30/6 and the recently launched Roxtec ComSeal

  • Grand Export Prize Awarded to Roxtec

    Cable and pipe seal supplier, Roxtec, is the winner of the Swedish Trade Council's award, Grand Export Prize 2010. CEO Fredrik Hansson received the award that was handed out by His Majesty the King of Sweden at a ceremony in Stockholm. "This is a fantastic recognition of our hard work.

  • Roxtec to Supply Safety Seals to Shell Oil Project

    A Bury-based safety seal specialist has secured a deal to supply its products to a major life extension programme Shell is undertaking on its Scottish oil and gas plants. Swedish-owned Roxtec's transit seals protect power cables and pipes from a range of hazards such as fire, water, air

  • Roxtec Awarded 'Super Company' and 'Gazelle Company' Status

    Roxtec is now both a 'Super company' and a 'Gazelle company'. According to the Swedish business magazine Veckans Affärer and the financial information provider PAR, Roxtec is number 17 on the list of the 434 super companies in Sweden. To enter this prestigious list in the turbule

  • Roxtec to attend over 60 Exhibitions during 2007

    During 2007 Roxtec will participate and exhibit at over 60 fairs and events world-wide. These include: Marine Week 2007, taking place this October in Busan, South Korea Europort Maritime, taking place this November in Rotterdam Marintec China, taking palce this

  • Roxtec at Important Marine Events in March and April

    Exhibitor at WMTC in London, SeaTrade Convention in Florida and Sea Japan in Tokyo. KARLSKRONA, SWEDEN, March 06, 2006: The shipbuilding and marine industries meet up at three important events in March and April. Roxtec is participating at all three as an exhibitor to present our safety


  • Anaklia Deep Sea Port

    Anaklia deep sea port, the first deep water container port in Georgia, is being developed by Anaklia Development Consortium (ADC).

Roxtec International AB
PO Box 540
SE-371 23 Karlskrona

Email address
Fax Number