Chemical hoses

The most important properties of a chemical hose are:

1. resistance to chemicals: high pressure chemical hoses are specially designed to offer high resistance to a wide range of chemicals. They are able to withstand contact with aggressive liquids and gases without damaging the hose.

2. temperature resistance: Industrial hoses for the chemical industry with high temperature resistance must be able to withstand both extreme cold and heat. They should be able to withstand both low and high temperatures without compromising their structural integrity.

3. flexibility: Chemical-resistant hose systems must be flexible to adapt to different environments and applications. They should be able to tolerate bending and deformation without cracking or leaking.

4. pressure and vacuum resistance: Chemical-resistant rubber hoses for laboratory and industrial use must be able to withstand high pressures and vacuum conditions without bursting or collapsing.

5. durability: PTFE chemical hoses and other chemical hoses should have a long service life and function reliably even under demanding conditions. They should be resistant to wear, abrasion and weathering.

Compared to other types of hoses, such as water hoses or air hoses, chemical hoses are mainly distinguished by their resistance to chemicals and their temperature resistance. They have been specially developed for use in chemical plants, laboratories or industrial environments where contact with aggressive chemicals and high temperatures can occur frequently.

Chemical hoses are usually manufactured by extrusion. In this process, a thermoplastic polymer is pressed through a die and formed into the desired hose shape. The hose is then cooled and cut.

The materials used depend on the requirements of the chemical hose. Plastics such as polyvinyl chloride (PVC), polyethylene (PE) or polypropylene (PP) are often used for transporting chemical substances. These plastics are resistant to chemicals and offer good barrier properties against gases and liquids.

For more demanding applications where greater chemical resistance is required, special polymers such as fluorocarbons (e.g. PTFE) or fluoroelastomers (e.g. FKM) can also be used. These materials are characterized by their high resistance to aggressive chemicals.

In addition, chemical hoses can be equipped with various reinforcement layers to ensure improved pressure and temperature resistance. These layers can consist of woven fabrics, wire mesh or plastic tapes.

It is important to consider the specific requirements of the application when selecting the chemical hose to ensure that the hose has the desired chemical resistance and mechanical strength.

When handling chemical hoses, the following safety precautions should be observed to avoid accidents or leaks:

1. selecting the correct hose material: ensure that the hose material used is suitable for the type of chemicals it will come into contact with. Check the chemical resistance of the hose according to the manufacturer's instructions.

2. hose inspection: Check the hose for damage, cracks, wear or other defects before each use. Do not use the hose if it is damaged.

3. proper storage: Store the hoses in a dry and well-ventilated place, away from direct sunlight and heat sources. Keep the hoses away from sharp objects or chemicals that can damage the hose.

4. correct installation: Ensure that the hose is properly installed and correctly connected to the corresponding fittings. Ensure that the fittings are tightly screwed to prevent leaks.

5. safety valves and overpressure safety devices: If necessary, install safety valves and overpressure safety devices to prevent excessive pressure in the hose system.

6. protective equipment: When handling chemicals and chemical hoses, wear suitable personal protective equipment, such as gloves, goggles and protective clothing, to protect against possible splashes or leaks.

7. education and training: Ensure that people working with chemical hoses are informed and trained on the correct procedures and safety measures.