Working with industrial systems that get hot can be tough. For example, think about power plants, chemical factories, or big manufacturing sites. Pipes and ducts get bigger and smaller as temperatures change. If you don’t allow for this movement, serious problems can arise. You might see cracks, leaks, and costly shutdowns. This is exactly where fabric expansion joints come in. They act as flexible helpers in hot places.
However, a standard joint from a shop often isn’t enough. Not when temperatures are extreme and your system has special needs. Therefore, bespoke high-temperature fabric expansion joints are so important. They are often vital for keeping your hot air ducting systems strong and working well.
What are Fabric Expansion Joints?
Simply put, fabric expansion joints are bendy parts. We make them from many layers of special fabrics, insulation, and sometimes metal. Their main job is to soak up movement in ducts. This movement comes from heat changes, shaking, and even small misalignments. Think of them as a carefully made “stretchy band.” They stop stress from building up in stiff pipes.
For hot jobs, these joints must handle extreme heat and stay flexible and strong. We build them from materials chosen for their heat resistance, chemical safety, and toughness.
Why “Bespoke” Matters in High Temperatures
You might wonder why you can’t just pick a standard fabric expansion joint from a catalogue. The truth is, every hot industrial system presents its unique challenges. This is precisely why “custom-made” becomes so valuable.
Indeed, we design bespoke high-temperature fabric expansion joints just for your needs. It’s not just about size. Furthermore, we consider many key factors:
- Operating Temperatures: How hot does it get? Is it always very hot, or are there big, sudden heat spikes? This helps us choose the right material layers.
- Pressure Levels: How much pressure will the joint face inside and out? High pressures demand stronger builds.
- Chemical Environment: Are there harsh gases or tiny particles around? Some chemicals can damage materials. So, we must pick tough fabrics.
- Movement Needed: How much expansion, shrinking, or side-to-side movement does the joint need to handle? We design the joint’s shape and number of folds for this.
- Tight Spaces: Is there limited room for fitting? We can tailor a custom design to fit awkward spots.
- Flange Type: Matching your existing ductwork perfectly is key. This helps with easy fitting and prevents leaks.
- Wear Resistance: If the system carries grinding particles, we can add special layers. These stop wear and tear.
So, choosing a custom solution means more than just buying a product. You’re getting a perfectly made part. It will fit right into your system. This gives you the best performance and a longer working life.
The Hidden Benefits of Hot Fabric Expansion Joints
Putting good-quality fabric expansion joints into your high-temperature systems brings many advantages:
- Handles Heat Movement: First and foremost, they are designed to handle big changes in heat. They prevent mechanical stress on stiff ducts and attached machines. This is their primary function, and it makes them vital.
- Stops Shaking: They effectively soak up and separate vibrations. These come from fans, pumps, and other machines. This reduces noise pollution and prevents parts from wearing out due to shaking.
- Fixes Small Mismatches: Small misfits during fitting or from things settling can be handled smoothly. This avoids costly rework or forcing components into place.
- Resists Rust: When we make them with the right stuff, they offer excellent resistance to harsh chemicals and gases. These are often present in hot processes.
- Less Stress on Machines: By taking the strain of movement, they make fans, scrubbers, and other expensive machines last longer. These are often connected to the ducts.
- Stops Leaks: A properly designed and fitted joint provides a secure, flexible seal. It prevents hot gases from escaping. This keeps the system working well. Also, it’s very important for safety and the environment.
- Saves Money Later: Custom solutions might seem like a bigger cost at first. However, they significantly lower the risk of system breakdowns, unplanned stops, and expensive repairs. This leads to substantial long-term savings. Think of it as an insurance policy for your hot equipment.
- Lightweight: Compared to metal joints, fabric ones are generally lighter. This makes them easier to handle, move, and fit. It can also mean you need less heavy support for them.
What to Think About for Custom Hot Fabric Expansion Joints
When you want custom-made hot fabric expansion joints, give your manufacturer full details. This ensures they can design the perfect solution for your needs. Be ready to discuss:
- Temperature Range: The lowest, highest, and average working temperatures.
- Pressure Data: Operating pressure, top pressure, and any vacuum conditions.
- What’s Passing Through: What gases or particles will go through the joint? (e.g., smoke, chemical fumes, grinding dust).
- Movement Details: Exact info on straight, side-to-side, angled, and twisting movements.
- Duct Sizes: Inside and outside sizes of the ductwork.
- Flange Info: Bolt hole patterns, material, and thickness of existing flanges.
- Where it’s Fitted: Is it inside or outside? Are there tight spaces or special safety rules?
- How Long Should it Last: What is the desired operational life of the joint?
How We Make Them: Skill and Knowledge
Making a custom-made hot fabric expansion joint involves a careful process. Typically, it includes:
- Choosing Materials: Based on the application data, expert engineers select the optimal combination of fabric layers. (e.g., silicone-coated fibreglass, PTFE-coated fabrics, ceramic fibres).
- Layering and Stitching: We carefully cut these chosen materials. Then, we expertly layer and stitch them together. This stage often requires specialist machinery and highly skilled technicians.
- Adding Support: We might add metal support frames or inside baffles. These provide structural integrity and protect against abrasion.
- Shaping: We then carefully form the joint into its required shape. This often involves complex folds to allow for specific movements.
- Quality Checks: We carry out rigorous testing and inspection processes. This ensures the finished product meets all specifications and quality standards before it leaves the factory.
Why Choose Thomson Process for Your Expansion Joint Needs?
Thomson Process makes bespoke, made-to-order Fabric Expansion Joints & Compensators for many of Ireland’s top industrial manufacturers and power plants.
Our Expansion Joints have been patented since 1997, and we have been serving Irish Industry with Fabric Compensators since.
Thomson Process is usually known as a pump specialist, however, our company has another specialty that until recently we have been working on for only a select number of clients. We make fabric expansion joints & compensators for high-temperature operation to a patented and long-trusted design and work with many of Ireland’s power generation and industrial plants, which use high temperatures in their process.
Expansion Joints are known by a few other names; you may call them compensators, duct connectors, or high-temperature fabric compensators, among others, but no matter what the name, they do the same task in high-temperature processes – they allow the structural steelwork and ducts to expand and contract without strain.
Thomson Process is a specialist in the manipulation of fabrics, and Multi-Layer Seal joints can be made to almost any configuration, for example, square, circular, rectangular, right-angle flanged, and tapered (to fit two different-sized ducts).
We use several different construction specifications depending on the temperature and hostility of the gases and vapours.
As each joint is made to fit, we can provide an immediate response for any emergency encountered by our customers.
Contact us on 012750801 to talk to us about your plant expansion joint needs in time for shut-down this winter. Or email alangreen@thomsonprocess.ie