Composite hoses for safe and efficient transport of aggressive liquids

Composite hoses (also known as tank truck hoses) are a key choice when working with liquids that place high demands on safety, cleanliness and chemical resistance. This applies to chemicals, fuels, oil-based media and media for food contact, where even minor leaks can result in costly downtime and extensive clean-up. We offer a selection of different composite hoses for the process, food and chemical industries, which are used in everything from tankers and railway wagons to storage tanks and filling stations. 

If you handle aggressive liquids, you know that operational reliability is non-negotiable. If you choose the wrong type of hose, you risk leaks, rapid wear and tear, or unforeseen production stoppages. That is why our range of composite hoses is based on both technical performance and practical usability, so you get solutions that work in everyday life. 

The hoses are characterised by: 

• High flexibility for both stationary and mobile installations 
• Chemical resistance to aggressive media 
• Resistance to heat, sunlight and weather in outdoor installations 

When you combine these properties, you get a solution that is both robust in operation and easy to work with – even when you have many shifts or frequent connections and disconnections. 

The construction of a composite hose is central to both service life and safety. Our composite hoses are constructed of multiple layers of thermoplastic materials around a core of Ultra High Molecular Weight Polyethylene (UPE). Inside and outside, the hoses are reinforced with AISI 316 stainless steel spirals, which provide a combination of flexibility, chemical resistance and mechanical strength. At the same time, the hoses are resistant to UV rays, ozone, temperature fluctuations and harsh weather, making them suitable for outdoor installations in both industrial and marine applications. The result is a solution where the construction and choice of materials support the safety requirements you work under on a daily basis. 

Composite hoses are used when liquids need to be moved safely from one stage of the process to another, and when flexible connections are needed between fixed installations and mobile units. 

Typical applications include: 

• Loading and unloading of tankers 
• Transfer between railway wagons 
• Road transport of chemicals and fuels 
• Flexible connections between process equipment and tanks 

The low weight and good bending radius make the hoses easy to manoeuvre in environments where your employees work close to heavy installations and in confined spaces. This improves ergonomics and reduces the physical strain of repeated connections. 

Our range includes our Food 500 and PTFE SD. They demonstrate both the breadth of applications and the difference in material performance. Food 500 is food-approved and suitable for alcohol and oil-containing media, built in several layers around a UPE core with AISI 316L spirals, and it can be cleaned with both steam and chemicals. PTFE SD, on the other hand, is designed for aggressive chemicals and marine transfers, where the construction with a UPE core, stainless spirals and a wear-resistant outer cover provides high chemical resistance and stability. The hose is available in an antistatic ATEX version and with a FireTec option when safety and documentation are key requirements. 

The need for hoses varies from plant to plant and from process to process. That is why we offer tailor-made hose solutions via our hose configurator, where you can define the exact combination of hose type, dimension, length and coupling that suits your production. 

In the hose configurator, you can, among other things: 

• Select hose type according to media, pressure and temperature 
• Customise length and dimension to the specific installation 
• Specify coupling types, labelling and pressure certificate requirements 

If you need advice, our specialists are ready to help you choose the optimal solution based on operating data, media composition and documentation requirements. Give us a call today on +45 7020 0422 or write to us at inquiry@alfotech.eu so we can discuss the details. 

Composite hoses transport aggressive liquids such as chemicals, fuels, oils, petroleum and foodstuffs such as alcohol, and are suitable for loading and unloading tankers, trains, lorries and industrial transfers on land or water. 

They have multiple thermoplastic layers reinforced with inner and outer spirals of AISI 316 stainless steel for flexibility, durability, UV/ozone/weather resistance, with options for antistatic or fire-retardant coatings. 

Composite hose offers better chemical resistance, lower weight, flexibility and lower permeability, but rubber provides higher resistance to crushing/abrasion at a lower cost. 

Among our range, only our Food 500 composite hose is food-approved and therefore suitable for food applications, as it is specifically certified according to both EU and FDA standards for contact with food. Chem SD, PTFE SD and OIL SD are designed for chemicals, aggressive media and fuel oils and are typically used for chemical transport.