Expansion Joints Expertise for the Process Industry
LSI-MECH is known for its supply in petrochemical and refinery industries . We have supplied for FCCU, heat exchanger , chemical and fertilizer applications.
End-use Application areas
We have successfully delivered solutions for diverse and critical application areas, including:
• Shell & Tube Heat Exchangers across process facilities
• Cycle Gas Compressor piping
• Methanol Converters and Ammonia Baskets
• Incinerators and Thermal Oxidizers in Petrochemical plants
• Waste Heat Boilers (WHB) in FCCUs and SRUs
• Storage tanks (for Crude & Products)
• Cryogenic piping systems and Coal Gasifiers
5500 NB MEJ For petrochemical applications in Kuwait . Process Licensor : Dow Chemicals.
Custom Solutions for Critical Applications
We specialize in developing high-performance Metal Expansion Joints tailored for a wide range of process equipment and systems from static equipment like heat exchangers and reactors to rotary machinery and complex process piping. Our solutions are engineered to meet stringent operational demands, ensuring durability and reliability under high pressure, temperature, and corrosive environments.
MEJ for SRU application
Expansion Joints for Reactors and Critical Applications
At LSI – Mech Engineers Private Limited, our engineering capabilities go far beyond Heat Exchangers. We have successfully developed and delivered Expansion Joints for a wide range of reactor systems, including Urea Reactors, Ammonia Converters, CCR Platforming Reactors, Pacol Reactors, and Methanol Converters. These critical components are engineered to operate reliably under extreme pressure, temperature, and environmental conditions.
Global Recognition and Licensor approvals
We are proud to hold approvals from leading process licensor , including KBR, and have consistently delivered high-performance Expansion Joints to projects around the globe. Our expertise in working with specialty materials and complex designs has earned us a reputation as a trusted supplier to the world’s top EPCs and operators.
MEJ for Ammonia Reactor applications
Specialized Design and High-Performance materials
For high-demand reactor environments, we utilize advanced materials such as Alloy 625, Alloy 800H, and Alloy 600, chosen for their superior resistance to high temperature, pressure, and corrosion. Bellows made from Alloy 625 are strengthened with reinforcing rings between convolutions, while weld ends made of Cr-Mo steel are finished with weld buttering to ensure compatibility and durability during alloy welding.
Ammonia Converter Expansion Joints
Expansion Joints for Ammonia Converters are specifically engineered to accommodate large axial movements while withstanding combined high-temperature and high-pressure environments. The compact design meets strict dimensional tolerances, and bellows are typically constructed from Alloy 800H or Alloy 600 to ensure optimal performance and long service life.
DN 500 Tied Lateral Expansion Joints, for a Tank Farm in Middle East to
compensate huge tank settlements
High-Performance Designs for Critical Reactor Applications
Expansion joints for Ammonia Converters are engineered to handle high-pressure, high-temperature environments while allowing large axial movements. These are compactly designed with close tolerance controls and utilize high-performance materials such as Alloy 800H and Alloy 600.
In CCR and Pacol Reactors, expansion joints are typically integrated within internal piping systems. Their performance is influenced by both internal and external conditions. Our bellows made from Alloy 800H are designed to endure temperatures exceeding 550°C, and incorporate full-bore liners with polished surfaces for efficient handling of abrasive catalysts
Reinforced MEJ for Shell & tube heat exchanger application
Expansion Joints for CCR and Pacol Reactors
In CCR Platforming and Pacol Reactors, Expansion Joints are often integrated within internal piping systems. These joints are subject to both internal process conditions and external thermal effects, making material selection and design accuracy critical. Bellows are fabricated using Alloy 800H, capable of withstanding temperatures above 550°C, and are equipped with full-bore liners featuring polished internal surfaces to handle abrasive catalyst flow effectively
