Pressure Balanced Expansion Joints
Discover the perfect solution for extreme conditions: Our customized pressure compensation expansion joints offer maximum safety, durability and precision - developed precisely for your requirements!
Temperatures up to 1000 °C
Thrust neutralization
extreme pressures up to 150 bar
High-quality pressure compensation expansion joints from the leading manufacturer
Pressure compensation expansion joints from HELS offer a reliable solution for demanding operating conditions. They are made of high-quality material such as Inconel 625, which is characterized by exceptional corrosion resistance. These expansion joints have been specially developed for applications that have to withstand extreme temperatures of up to 1093 °C and aggressive media. Thanks to their robust design, they are perfect for compensating for pressure fluctuations in pipe systems, ensuring long-term operational reliability.
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Pressure compensation expansion joints with international service
The outstanding material properties of Inconel 625 make pressure compensation expansion joints particularly resistant to extreme conditions. They are ideal for chemical processes with aggressive substances, cryogenic applications or use at temperatures above 500 °C. They also guarantee a long service life in marine environments, for example in contact with salt water. Their stable design enables precise and reliable compensation of pressure differences.
Reliable manufacturer of pressure equalization compensators
HELS manufactures pressure compensation expansion joints individually according to the specific requirements of your applications. Whether based on drawings or samples, we design and produce customized solutions that meet the highest standards. Our expertise and state-of-the-art manufacturing techniques ensure that every product is perfectly suited to the conditions of use. With our expansion joints, you can create a safe and efficient solution for demanding pipe systems.
Expansion joints with pressure equalization
Expansion joints with pressure compensation minimize thrust forces, protect sensitive systems and compensate for movements in pipelines. Perfect for demanding industrial applications such as power plants, pumps and turbines.
Pressure-relieved Expansion joints
A pressure compensation expansion joint is the ideal solution for pipelines where fixed points are difficult to install, for example due to a lack of space or for economic reasons. It compensates for axial and lateral movements without transferring shear forces to the fixed points. HELS offers pressure compensation expansion joints with diameters up to DN5000, which are designed for pressures up to 150 bar and temperatures up to 1000 °C. Manufactured from materials such as austenitic stainless steels and Inconel, they guarantee maximum reliability. They are designed in accordance with international standards such as EN 13480 and ASME VIII. The available test methods include radiographic, hydrostatic and pneumatic tests. These expansion joints are particularly suitable for use in power plants and other industrial projects. With their high adaptability and quality, they are the perfect solution for demanding applications.
More expansion joints from HELS
Rubber expansion joints
Rubber expansion joints offer a load capacity of up to 16 bar thanks to their special material composition of rubber reinforced with metal wires. This design makes them robust and durable. Additional seals are not required.
Metallic axial compensator
With an inner sleeve made of AISI 304/321, welded connections on both sides, a pressure rating of PN16 and a temperature resistance of -80 to +427 °C, the butt-welded metal-axial expansion joint offers reliable performance even under extreme conditions.
Rectangular Expansion Joints
HELS offers high-quality angle compensators made of durable stainless steel. They compensate for angular movements in piping systems and thus ensure that the connections are handled gently. Customized solutions can be flexibly adapted to the circumstances.
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LET US ANSWER THE FREQUENTLY ASKED QUESTIONS
Why are pressure compensation expansion joints ideal for applications with sensitive devices?
Pressure compensation expansion joints minimize the transmission of thrust forces to fixed points, which protects sensitive equipment such as turbines, pumps or compressors. Thanks to their design, they compensate for axial and lateral movements in piping systems without jeopardizing the stability of the system. This reduces undesirable loads and extends the service life of the connected components. These properties make them indispensable in systems that require precise working conditions, such as power stations or petrochemical industrial plants.
What role do materials play in the performance of a pressure equalization compensator?
The choice of material is crucial, as pressure compensation expansion joints often operate under extreme conditions such as high temperatures and pressures. Austenitic stainless steel and Inconel are common materials that are preferred due to their corrosion resistance and strength. These materials allow temperatures up to 1000 °C and pressures up to 150 bar without compromising functionality or safety. This makes them ideal for demanding industrial applications where durability and reliability are top priorities.
What is the difference between axial and angular movements in pressure compensation expansion joints?
Axial movements occur along the axis of the pipeline, while angular movements are caused by changes in the angle of inclination. Pressure compensation expansion joints are designed in such a way that they can flexibly accommodate both types of movement. This is particularly important in complex piping systems where thermal expansion and vibrations can lead to mechanical stresses. With the ability to effectively compensate for movement, these expansion joints help to ensure structural integrity and prevent damage.
Which tests guarantee the safety of pressure compensation expansion joints?
Various tests such as radiographic tests to check weld seams, hydrostatic tests for pressure testing and penetration tests to detect surface defects ensure quality assurance. These tests ensure that the expansion joint works reliably even under extreme conditions. In addition, pneumatic tests can be carried out to confirm tightness and functionality. Performing such tests in accordance with international standards such as EN 13480 or ASME VIII gives operators the assurance that the products meet the highest requirements.
Why are pressure compensation expansion joints indispensable in the energy sector?
In the energy sector, especially in power plants, piping systems have to withstand high pressures and temperatures. Pressure compensation expansion joints protect sensitive components such as turbines from the forces caused by thermal expansion. Their ability to compensate for movements and minimize structural stress ensures smooth operation of the systems. They also meet the strictest safety requirements and help to reduce downtimes and repair costs. As a result, they play a key role in the efficiency and longevity of modern energy systems.
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