Macoga
Delivering Value Through Quality and Integrity
MACOGA is the largest manufacturer for Process Expansion Joint in the world and a global leader in the design and manufacture of engineered expansion joints. Headquartered in A Coruña, Spain, the company has provided flexible piping solutions for critical industrial applications since the early 1970s.
- Expansion Joints: Complete service and Supply Materials in Metal, Rubber, and Fabric expansion joints.
- Design & Engineering: Using advanced tools like Finite Element Analysis (FEA) and 3D modelling, they tailor solutions for extreme pressures (up to 150 bar) and temperatures.
- Range & Scales: Their manufacturing capabilities cover diameters from 15 mm to 10 meters.
- Global Presence: MACOGA operates in over 90 countries, serving industries such as oil and gas, power generation, nuclear, and shipbuilding.
Metal Expansion Joints
Metal bellows expansion joints are used as components in piping or as parts of pressure vessels.
An expansion joint is any apparatus containing one or more metal bellows used to absorb dimensional changes such as those caused by thermal expansion or contraction of a pipeline, duct, or vessel and to
absorb vibrations caused by engines, pumps, motors, etc.
In other words, a metal expansion joint is a device primarily formed by flexible bellows used to absorb movements in a piping system while containing pressure and a medium running through it.
The key element of an expansion joint is the bellows. The bellows is a flexible element consisting of one or more corrugations and the end tangents.
A corrugation (convolution) is the flexible unit of a bellows and end tangents are the straight un-corrugated
portions at the ends of a bellows. The flexibility of the bellows is derived from the inherent flexibility of the corrugation given its shape and its own design. In the design and construction of the bellows, in addition to considering that they must be flexible and such flexibility must be controlled, other operating parameters such as pressure, temperature and chemical
resistance to fluid passing through them must be considered.
More Details:
Rubber Expansion Joints
Thermal growth, equipment movement, vibration or pressure pulsation may generate movement in a piping system. When this movement is not absorbed by the piping system itself, an expansion joint is the perfect solution.
A Rubber Expansion Joint is flexible connector fabricated of natural or synthetic elastomers, fluoroplastics
and fabrics and, if necessary, metallic reinforcements used to absorb movements in a piping system while containing pressure and a medium running through it.
More Details:
Fabric Expansion Joint
Fabric Expansion Joints are advanced flexible components used in industrial ducting systems to absorb thermal expansion, mechanical displacements and vibration while maintaining mechanical integrity. Their flexibility, corrosion resistance, and adaptability to complex duct geometries make them indispensable in modern process industries.
These products are widely applied in flue gas handling, exhaust systems, pollution control, and process ventilation systems where temperature extremes, aggressive chemical environments, and demanding
operational cycles are common. Fabric expansion joints are custom engineered to meet the specific movement, temperature, pressure, and chemical compatibility requirements of each application.
More Details: