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Providing custom solutions that work for you since 1985
The UK's No.1 provider of specialised flexible connectors

Polyurethane Sleeves

Bespoke design and manufactured FDA and ATEX rated polyurethane flexible connectors.
polyurethane sleeves

Polyurethane Sleeves

Polyurethane Sleeves

At Flexible Connections Ltd, we offer an extensive range of polyurethane (PU) sleeves that stand out for their superior performance and versatility. Widely used across various industries, from industrial manufacturing to food processing, our polyurethane sleeves meet the diverse needs of our clients. Below, we provide a comprehensive overview of the numerous benefits of polyurethane sleeves, emphasising their relevance to different applications and highlighting why they are an excellent choice for your business needs.

Superior Abrasion Resistance

Polyurethane sleeves are renowned for their exceptional abrasion resistance. This characteristic is essential in the aggregate industry, where the media is sand, gravel, and other abrasive materials. Unlike many other materials, PU sleeves can withstand the wear and tear of these abrasive substances, resulting in a longer service life and reduced maintenance costs. This durability ensures that our flexible connectors provide reliable performance, even in the most demanding environments.

High Flexibility and Elasticity

The flexibility and elasticity of polyurethane sleeves are key factors contributing to their widespread use. These properties allow the sleeves to maintain shape and functionality under various conditions. PU sleeves excel in applications requiring the sleeve to bend, twist, or stretch without compromising structural integrity. For instance, in dynamic applications involving moving parts, polyurethane sleeves act as effective, flexible connectors that absorb shocks and vibrations, providing a cushioning effect that protects both the sleeve and the associated equipment.

Chemical Resistance

Polyurethane offers resistance to various chemicals, including oils, solvents, and fuels, making PU sleeves particularly suitable for environments where exposure to these substances is daily. For example, in chemical processing industries, the sleeves can withstand harsh chemicals without degrading, ensuring consistent performance and safety. This chemical resistance is a significant advantage for flexible connections in demanding applications.

Temperature Stability

One of the standout features of polyurethane sleeves is their ability to maintain performance across a wide temperature range. They remain flexible at low temperatures without becoming brittle and retain their structural integrity at higher temperatures. This thermal stability makes them ideal for use in environments with fluctuating temperatures, such as automotive applications or industrial settings where temperature variations are common. The consistent performance of our flexible connectors, regardless of temperature changes, is a testament to the quality and reliability of our products.

Impact and Tear Resistance

PU sleeves are highly resistant to impact and tearing, which enhances their durability in harsh conditions. This robustness is particularly beneficial in applications involving heavy machinery or rough handling. Polyurethane sleeves’ impact resistance also helps protect the contents conveyed or covered by the sleeves, ensuring the integrity of the products and processes.

FDA Compliance for Food Safety

For applications in the food industry, we offer FDA-compliant polyurethane sleeves. These sleeves meet stringent food safety standards, ensuring they do not contaminate food products. The smooth, non-porous surface of FDA polyurethane sleeves is easy to clean, preventing bacteria and other contaminants from building up, which is essential for maintaining hygiene standards in food processing environments. Our flexible connections ensure food products are handled safely and contamination-free, adhering to the highest safety protocols.

Metal Detectable Polyurethane for Enhanced Safety

In industries where contamination control is critical, our metal detectable polyurethane sleeves provide an added layer of safety. These sleeves are designed to be detected by standard metal detection systems used in food and pharmaceutical processing plants, ensuring any fragments are quickly identified and removed. This feature significantly enhances product safety and quality control, preventing potential contamination and ensuring compliance with industry standards.

Versatility in Applications

The versatility of polyurethane sleeves is one of their most significant advantages. They can be used in various industries, demonstrating their adaptability and wide-ranging utility. Some typical applications include:

  • Material Handling: Conveying granules, powders, and other bulk materials efficiently.
  • Protective Coverings: Shielding sensitive components from damage or contamination.
  • Sealing and Insulation: Providing effective seals and thermal insulation in different settings.
  • Hydraulic and Pneumatic Systems: Acting as flexible connectors that can withstand pressure and fluid exposure.

This versatility ensures that our PU sleeves can meet the specific needs of different sectors, providing customised solutions that enhance operational efficiency.

Ease of Installation and Replacement

Polyurethane sleeves’ flexibility and lightweight nature make them easy to install and replace, reducing downtime during maintenance. Our flexible connectors’ quick and straightforward installation is a significant advantage in industrial settings where operational continuity is vital.


While the initial cost of polyurethane sleeves may be higher than some other materials, their long service life and reduced maintenance requirements make them a cost-effective choice in the long run. The durability and reliability of PU sleeves mean fewer replacements and repairs, leading to lower total ownership costs. By choosing our flexible connections, you invest in a solution that delivers sustained performance and cost savings over time.


Polyurethane sleeves are bespoke and manufactured to meet specific requirements, enhancing their appeal for various applications. They can be manufactured in different sizes, thicknesses, and hardness levels to suit particular needs. This customisability ensures that you get a product that fits your exact requirements, enhancing efficiency and performance in your operations. At Flexible Connections Ltd, we provide customised solutions to meet the unique needs of our clients, ensuring optimal performance and satisfaction.

ATEX-Rated Polyurethane for Explosive Environments

In addition to our standard offerings, we provide ATEX-rated polyurethane sleeves for use in explosive environments. These sleeves meet the strict safety standards required for ATEX environments, ensuring safe use in areas with a risk of explosion due to flammable gases or dust. Our flexible connectors are an excellent choice for petrochemical, mining, and grain processing industries, where safety is paramount.

Enhanced Sealing Properties with Encapsulated Ends

For applications requiring superior sealing properties, we can encapsulate foam or rubber into the ends of the sleeves. This added feature ensures a tighter seal, preventing leaks and enhancing the overall performance of the flexible connectors. Whether you need to contain dust, gases, or liquids, our encapsulated ends provide an extra layer of protection, ensuring that your operations run smoothly and efficiently.

Quick Release Clips for Easy Maintenance

We also offer the option to incorporate quick-release clips into the ends of the sleeves. These clips allow for fast and easy installation and removal, making maintenance tasks more straightforward and quicker. This feature is particularly beneficial in applications where regular cleaning or replacement of sleeves is required. The quick-release clips enhance the usability of our flexible connectors, ensuring that your maintenance procedures are efficient and hassle-free.


Polyurethane sleeves from Flexible Connections Ltd offer many benefits, making them an ideal choice for various industrial applications. Multiple sectors use polyurethane sleeves because of their superior abrasion resistance, flexibility, chemical resistance, temperature stability, and impact resistance. Additionally, their compliance with food safety standards, versatility, noise reduction capabilities, ease of installation, cost-effectiveness, and customisability further underscore their value.

By choosing polyurethane sleeves, you invest in a solution that delivers long-term reliability, efficiency, and performance. Our flexible connectors ensure your operations run smoothly, safely, and cost-effectively. Explore our range of polyurethane sleeves and experience the difference in quality and performance that Flexible Connections Ltd offers. Whether you need FDA polyurethane for food applications, ATEX-rated sleeves for explosive environments, metal detectable polyurethane for enhanced safety, or enhanced sealing properties with encapsulated ends, we have the perfect solution to meet your needs.

Standard Materials

0.35mm and 1mm clear FDA and ATEX polyurethane
0.35mm, 0.6mm, 1mm and 1.5mm standard clear polyurethane
1.5mm blue and black polyurethane
1.5mm black reinfoirced polyurethane
1mm and 1.5mm clear PVC film
1mm blue metal detectable FDA polyurethane


Powder and granule gravity fed systems
Load cell flexibles
Pipe misalignment
Viewing and inspection for flow monitoring

Ask the experts

With over 50 years experience manufacturing bespoke flexible connectors, we can help with the design process and material selection. Why not give us a call to see how we can help you find the right solution.

Call us on 01606 836024 or email: sales@flexibleconnections.co.uk

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polyurethane sleeves
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