Expansion joints
Experience customized expansion joints that keep your system moving safely and reliably - precisely manufactured for maximum load capacity and efficiency.
Customized solutions
High-quality materials
Efficient vibration and pressure compensation
Experienced manufacturer of customized expansion joints
As an experienced manufacturer, we offer customized expansion joints that are perfectly tailored to the requirements of your system. With comprehensive expertise and high-quality production, we ensure the optimum design for loads and movements in pipe systems - reliable, durable and precisely manufactured for maximum efficiency and stability.
HOW CAN WE ASSIST YOU?
Expansion joints to reduce thermal expansion
Expansion joints compensate for thermal expansion and mechanical movements in pipelines. Thanks to their flexibility, they can absorb axial, lateral and angular movements, which protects the pipe system from damage and enables a continuous, uninterrupted supply. Expansion joints are an important solution for smooth processes, especially in systems that are exposed to large temperature fluctuations. Our range includes rectangular expansion joints, angular expansion joints, pipeline expansion joints, universal expansion joints and many more.
Expansion joints for vibration damping in industrial plants
Expansion joints usually consist of flexible components such as metal bellows that can compensate for movement and expansion. These bellows are made of robust materials, often stainless steel, and are divided into different types to absorb different loads. They connect the pipelines using components such as flanges, welded joints or threads and are often fitted with protective covers to prevent wear.
Expansion joints for noise and vibration damping in pipelines
The flexible properties of expansion joints make them ideal for a wide range of industrial applications, e.g. in heating systems, pump systems and production plants. They relieve the system by absorbing vibrations and pressure fluctuations, which extends the service life of the entire system. Their use increases system stability, which in turn leads to greater efficiency and less maintenance.
Expansion joints for fluid transport in high-pressure systems
Our expansion joints are specially designed for high-pressure systems in which liquids are transported under extreme conditions. Thanks to their flexible structure, they absorb pressure fluctuations and thermal expansion, protecting and stabilizing the piping system. This absorbs high loads and prevents damage to the system, ensuring a continuous and safe supply.
Thanks to high-quality materials such as stainless steel, our expansion joints can easily withstand the challenges of high-pressure systems. They are particularly corrosion-resistant and durable, making them ideal for use in demanding industrial applications. This reliable solution minimizes maintenance and extends the service life of the system, which in turn leads to greater efficiency and cost savings.
Thanks to high-quality materials such as stainless steel, our expansion joints can easily withstand the challenges of high-pressure systems. They are particularly corrosion-resistant and durable, making them ideal for use in demanding industrial applications. This reliable solution minimizes maintenance and extends the service life of the system, which in turn leads to greater efficiency and cost savings.
HLS MKD axial expansion joint - floating flanged
The HLS MKD axial expansion joint with floating flanges offers a flexible solution for high requirements. The bellows and inner pipe are made of AISI 304/321 stainless steel, the flange of St37.2. Suitable for pressure ratings up to PN16 and temperatures from -80°C to +427°C.
HLS MKS axial expansion joint - fixed flanged
The HLS MKS axial expansion joint impresses with its robust design: bellows and inner sleeve made of AISI 321, flanges made of St37.2, flanged for reliable connections. Ideally suited for use at -80 to +427 °C and a pressure of PN16 - maximum stability under extreme conditions.
Metal axial compensator butt-welded
This metallic axial expansion joint with butt-welded connections offers maximum reliability for demanding applications. Made from AISI 304/321, it can withstand temperatures from -80 to +427°C and operates at a pressure of PN16. Ideal for applications that require durability and stability.
HLS LRF flanged universal expansion joint
The HLS LRF expansion joint with bellows made of AISI 304/321 and floating flange connection is ideal for high-temperature applications up to 427°C and a pressure up to PN16. Axial and lateral movements are flexibly compensated, effectively compensating for loads in systems with different pipe diameters.
HLS LRY grooved universal expansion joint
The universal expansion joint with grooved ends is made of durable AISI 304/321 and offers a high load capacity for temperatures from -80 to +427°C. It enables axially and laterally flexible movements at pressures up to PN16 - ideal for demanding operating conditions.
HLS LRB universal expansion joint butt-welded
This high-quality expansion joint consists of AISI 304/321 bellows and St37.2 flanges, tie rods and intermediate tubes, ideal for axial movements of up to ±30 mm and lateral movements of up to ±100 mm. Suitable for pressures up to PN16 and temperatures from -80 to +427 °C.
KKS rubber expansion joint ductile iron with flange
Rubber expansion joints are heat-resistant expansion elements that absorb vibrations and noise in pipelines and thus control thermal expansion. They can withstand pressures of up to 16 bar, are easy to install and are ideal for applications in pumps, fans, coolers and in the chemical and steel industries.
KKK rubber expansion joint made of carbon steel with flange
Kauçuk expansion joints are heat-resistant expansion elements that absorb vibrations and noise in pipelines. Their flexible structure insulates sound and protects the system from thermal expansion and water hammer. The rotatable flanges make installation easy and they can withstand pressures of up to 16 bar and temperatures of up to 90 °C.
KKD double ball rubber expansion joint screwed
Our heat-resistant rubber components absorb vibrations and dampen noise in pipelines without the need for additional seals. With a robust nylon reinforcement and a pressure resistance of up to 16 bar, they protect the system from thermal expansion and water hammers. The rotatable flange enables easy installation.
Gimbal expansion joints with flange
This high-quality expansion joint solution has a bellows made of AISI 304/321 for extreme temperatures from -80°C to +427°C. With flanges and connecting elements made of robust St37.2 and a pressure range up to PN16, it is ideal for demanding applications in high-pressure systems.
Cardan compensators butt-welded
The gimbal expansion joint with butt weld connection is designed for extreme temperatures from -80 to +427 °C and a pressure of PN16. The bellows is made of AISI 304/321 stainless steel, the intermediate tube and the gimbal joint are made of St37.2, ideal for demanding applications.
Cardan compensators (grooved)
The expansion joint with flange connection has a bellows made of AISI 304/321 stainless steel and components made of St37.2. With a pressure resistance of up to PN16 and a temperature range of -80 to +427 °C, it offers reliable flexibility and resilience. Ideal for demanding applications and stable connections.
Rectangular expansion joints
Rectangular expansion joints are ideal for ventilation systems and ductwork. They absorb thermal expansion and vibrations, ensure a reliable seal and minimize the load on the entire system. Perfect for systems with high temperatures and flexible requirements.
HLS - 50-BKB/HLS - 50-BKD Pipe expansion joints
Our pipe expansion joints are made of high-quality AISI 304/321 stainless steel bellows and are fitted with an aluminum or carbon steel cover. They have an inner tube made of St37.2 and screwed connections. Suitable for pressures up to 16 kg/cm² and temperatures up to 100 °C.
Lens expansion joints (thick-wall expansion joints)
Our thick-walled expansion joints are designed for extreme conditions. They absorb high pressures and offer reliable stability in demanding applications. Thanks to their robust design, they efficiently protect the piping system from thermal stresses and vibrations, thus extending the service life of the entire system.
HLS LRTY Flexible connector for pump connections
This expansion joint is equipped with flexible stainless steel bellows (AISI 304/321) and robust tie rods made of St37.2 for reliable pressure resistance up to PN16. Thanks to floating flange connections, it can withstand temperatures from -80 to +427 °C and effectively absorbs vibrations in industrial applications.
HLS DBF External pressure compensator - flanged
The external, pressure-loaded expansion compensator from HELS has a bellows made of high-quality AISI 304/321 stainless steel and inner and outer tubes made of St37.2. With a floating and fixed flange connection, a pressure range of PN16 and temperatures from -80 to +427°C, it is ideal for extreme conditions.
HLS DBB external pressure compensator, butt-welded
The HLS expansion joint is made of robust AISI 304/321 stainless steel bellows, with an inner and outer part made of St37.2 and welded joints also made of St37.2. It is designed for pressures up to PN16 and temperatures from -80 to +427°C and offers reliable protection in demanding applications.
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LET US ANSWER THE FREQUENTLY ASKED QUESTIONS
What types of expansion joints are available for industrial applications?
There are different types such as axial metal expansion joints, lateral rubber expansion joints, vibration elements and earthquake expansion joints. Each type is specially designed for specific movements or loads.
How is the correct size of expansion joint for a high-pressure system determined?
The selection depends on factors such as nominal pressure, temperature, degree of movement and medium. Professional calculations and adjustments ensure that the expansion joint fits the system perfectly.
What are the flexible elements of a metal bellows expansion joint made of?
Metal bellows expansion joints are usually made of stainless steel and are often multi-layered. The choice of material and design offer corrosion protection and flexibility for various industrial applications.
What role do expansion joints play in systems with large temperature fluctuations?
In such systems, expansion joints absorb thermal expansions and contractions, thereby reducing mechanical stress and protecting the structure of the pipelines.
When does it make sense to use an earthquake compensator?
Seismic expansion joints are ideal at expansion points in earthquake regions or in piping systems with ground movements. They stabilize the system by absorbing the movements in all axes and thus reduce the risk of damage.
HELS SPECIALIZES IN THE PRODUCTION OF HIGH-QUALITY STEAM TRAPS, EXPANSION JOINTS, LEVEL GAUGES, AND HOSE ASSEMBLIES. OUR PRODUCTS ARE ESSENTIAL FOR MULTIPLE INDUSTRIES.
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