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Hoses made from chemical-resistant fabrics
PTFE, Viton®, Kapton® or Hypalon®, you are definitely on the safe side when transporting media under hazardous conditions. The safety of a hose line is particularly important in the chemical industry, where substances with very different hazard characteristics have to be transported.
When it comes to connecting portable connections or transporting chemical gases, flexible and quick-to-use connection solutions, such as our clip hoses, can offer unbeatable advantages. In addition, many of the hoses mentioned here are also suitable for use in potentially explosive atmospheres.
Our safety and quality requirements, as well as our experienced employees, enable you to find exactly what you are looking for.
Materials that we use for chemical-resistant hose types
For the production of clip hoses, we use reliable types of fabric that differ from one another in terms of their properties. Depending on the substances, gases or liquids to be transported, the required temperature ranges or the expected mechanical loads. We have a wide range of high-quality technical fabrics and knitted fabrics made of glass, polyamide, polyester and aramid fibres such as Nomex® or Kevlar® and even ceramic material at our disposal. Special rubbers such as silicone, Neoprene® and CSM and special elastomers such as Viton®, Nitril® or butyl are used for the coating. Many types of fabric are particularly heat-resistant and can therefore be used in high-temperature applications.
Material resistance to flow-through substances
It is not only internal or external mechanical influences that can damage a hose line. Physical and chemical influences can also have a negative effect on a hose. This is always the case when liquid or gaseous substances penetrate the hose material, act on it or react with it. Our hoses are resistant to chemicals, as we manufacture many clip hoses from particularly chemical-resistant fabrics such as PTFE, Viton®, Kapton® or Hypalon®.
Material PE
Polyethylene (PE) is a thermoplastic and is very durable due to its high resistance to acids, alkalis and chemicals. The material also has harder material properties. Polyethylene hoses are particularly suitable for demanding applications, for example for transporting aggressive gaseous and liquid media or for conveying fine-grained particles such as dusts and powders in the chemical industry. The PE material is particularly resistant to acetone, benzenes, toluenes and xylenes.
Further information on the material can be found on our product detail pages.
Material PTFE
Let's move on to the high-performance material PTFE. We equip individual, multi-layer clip hoses with an inner layer made of an electrically conductive PTFE film. As this wall material is anti-adhesive or non-sticky, these hoses offer ideal conditions for transporting different media. The high-performance material PTFE is also characterised by its almost universal chemical resistance.
Further information on the material can be found on our product detail pages.
Design and manufacturing process of chemical-resistant hoses
We can design film, extrusion and clip hoses. Our clip hoses represent the widest product range for a chemical-resistant hose. We use film or fabric strips and a clamping profile ("clip") for the production of clamp profile hoses. In the clip process, different materials that are suitable for the production of a hose wall are clamped together with a metal spiral to form a tension-resistant hose. This process does not involve any welding, gluing or sewing. Depending on the external or internal stresses, the hoses can also be manufactured in multiple layers and, with their outer spiral, clamping profile hoses also have an "in-built" protective profile. The design also includes the abrasion protection spiral, which protects the hose from abrasion and mechanical damage.
Notes on chemical-resistant hoses
Many of the hoses listed in this group have been designed, engineered and manufactured by us for specific requirements and operating conditions. And just as we go to great lengths to provide customised and safe solutions for defined operating conditions, you should also ensure that the hoses you select are used in accordance with their technical specifications. When selecting a hose line, you should therefore be as familiar as possible with the intended mode of operation. This is because you will only be able to install a connection solution effectively and safely if you take your (process engineering) processes and operational contexts into account.
Parameters for application requirements:
- Resistance to the flow media
- Operating pressure (static and dynamic)
- Operating temperature
- Installation situation
- Bending/bending cycle frequency (dynamic stress)
- Frequency and duration of use
- Possible alternating stress (pressure, temperature)
- ambient conditions
- Mechanical stress
Standards for chemical-resistant hoses
In addition to the Ordinance on Industrial Safety and Health, TRGS 727 (TRGS = Technical Rules for Hazardous Substances) and the ATEX Product Directive 2014/34 EU are also decisive for the assessment and avoidance of ignition hazards. The ATEX standard therefore applies in terms of safety.
Further information on qualityList of chemical resistance
Background knowledge: Dust explosion
Hose lines can become electrostatically charged during operation when transporting solids or when being pulled across the floor. The charge can reach such a high level of energy that there is a risk of ignition and safety is jeopardised. For example, a spark can be generated when the hose line is connected, causing an explosive mixture to ignite.
We have written a white paper on the subject of dust explosions.
To the dust explosion whitepaper
