List of products by brand Macoga

MACOGA – Technical profile of a metal, rubber and fabric expansion joint manufacturer

MACOGA S.A. is a Spanish manufacturer of expansion joints for piping systems, ducts, flue gas systems, pressure equipment and industrial process installations. Its range includes metal, rubber and fabric expansion joints for thermal expansion, vibration, axial movement, lateral movement, angular rotation and installation misalignment.

The main product areas include:

  • metal expansion joints,
  • rubber expansion joints,
  • fabric expansion joints,
  • universal, tied, hinged and gimbal designs,
  • pressure-balanced expansion joints,
  • externally pressurised expansion joints,
  • rectangular and special-shape joints,
  • high-temperature duct expansion joints.

Metal expansion joints use metallic bellows as the flexible element. They are selected for pressurised piping, steam systems, process lines, pump connections, heat exchangers and high-temperature services. Design must consider EJMA, ASME, EN 14917 or project-specific code requirements.

Rubber expansion joints are used mainly for water, HVAC, pumps, low to medium temperature systems and vibration isolation. They can absorb axial, lateral and angular movements and reduce noise transmission. Tie rods, hinges or gimbal arrangements must be selected when pressure thrust needs to be restrained.

Fabric expansion joints are used in ducts, flue gas systems, exhaust lines, scrubbers, baghouses, ESP systems and high-temperature gas handling. They must be selected according to gas composition, temperature, pressure, dew point, acid condensation risk, insulation requirements and movement data.

An expansion joint must not be selected only by DN. Required engineering data include:

  • pressure and temperature,
  • medium,
  • axial, lateral and angular movement,
  • number of cycles and fatigue life,
  • spring rate,
  • pressure thrust,
  • pipe anchors and guides,
  • liner requirement,
  • cover or insulation,
  • material of bellows, flange, rubber or fabric layers,
  • testing and certification.

For piping engineers and mechanical engineers, a MACOGA expansion joint is part of the pipe stress design, not a simple flexible connector.

Expansion Joints - Type MTE | Macoga - Macoga

Expansion Joints - Type MTE | Macoga

Expansion Joints - Type MTE | Macoga
Macoga
Macoga MTE Axial Expansion Joints Macoga MTE are metallic axial expansion joints, single unrestrained type, featuring a single convoluted bellows and external BSP or NPT threads. The threaded connection is suitable for small bore piping where flanged or welded ends are not specified in the piping class. Operation and Limitations MTE type is primarily used...
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Expansion Joints - Type MTI | Macoga - Macoga

Expansion Joints - Type MTI | Macoga

Expansion Joints - Type MTI | Macoga
Macoga
Macoga MTI Axial Expansion Joints Macoga MTI are metallic axial expansion joints of the single unrestrained type, featuring a single bellows and internal BSP or NPT threads for connection to small-bore piping systems. They belong to the same family as MWA, MFA, MFG, MTE, and MQP, but are distinguished by their threaded internal connection. Network...
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Expansion Joints - Type MQP | Macoga - Macoga

Expansion Joints - Type MQP | Macoga

Expansion Joints - Type MQP | Macoga
Macoga
Macoga MQP Axial Expansion Joints The Macoga MQP is a metallic axial expansion joint, single unrestrained type, with quick press end connections. It is designed for HVAC heating, ventilation, and air conditioning networks. The construction features a single metallic bellows with quick press ends, primarily used to absorb axial pipe movements resulting...
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Expansion Joints - Type MWT | Macoga - Macoga

Expansion Joints - Type MWT | Macoga

Expansion Joints - Type MWT | Macoga
Macoga
Macoga MWT Axial Expansion Joints Macoga MWT are metallic axial expansion joints of the single tied type, featuring a single bellows, weld ends, and a tie rod restraint system. The flanged version of this series is designated MFT and is supplied with fixed flanges. Network Operation Tie rods limit pressure thrust, reducing main anchor requirements...
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Expansion Joints - Type MFT | Macoga - Macoga

Expansion Joints - Type MFT | Macoga

Expansion Joints - Type MFT | Macoga
Macoga
Macoga MFT Axial Expansion Joints Macoga MFT are metallic axial expansion joints of the single tied type, featuring a single bellows, fixed flanges, and tie rod assemblies. The welded-end variant is designated as MWT. Operation Tie rods absorb the pressure thrust, preventing the unit from acting as an unrestrained axial compensator. The MWT/MFT series is...
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Expansion Joints - Type MWD | Macoga - Macoga

Expansion Joints - Type MWD | Macoga

Expansion Joints - Type MWD | Macoga
Macoga
Macoga MWD Expansion Joints Macoga MWD are metallic expansion joints of the universal unrestrained type with welded ends. The assembly consists of two bellows connected by an intermediate pipe. The corresponding flanged version in this series is the MFD. Operation and Movements The MWD type can absorb a combination of axial, lateral, and angular...
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Expansion Joints - Type MFD | Macoga - Macoga

Expansion Joints - Type MFD | Macoga

Expansion Joints - Type MFD | Macoga
Macoga
Macoga MFD Expansion Joints Macoga MFD are metallic expansion joints of the universal unrestrained type with flanged ends. The assembly consists of two bellows connected by an intermediate pipe. The welded-end variant in the same family is designated MWD. Operation and Allowable Movements The MFD type is designed to absorb a combination of basic pipe...
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Expansion Joints - Type MWL | Macoga - Macoga

Expansion Joints - Type MWL | Macoga

Expansion Joints - Type MWL | Macoga
Macoga
Macoga MWL Lateral Expansion Joints Macoga MWL are metallic expansion joints of the universal lateral tied type, supplied with welded ends. The assembly consists of two bellows, an intermediate pipe, and a tie rod system designed to absorb the pressure thrust generated by internal pressure. The corresponding flanged version is designated as MFL. Operation...
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Expansion Joints - Type MFL | Macoga - Macoga

Expansion Joints - Type MFL | Macoga

Expansion Joints - Type MFL | Macoga
Macoga
Macoga MFL Lateral Expansion Joints Macoga MFL expansion joints are metallic, universal lateral tied type, with flanged ends. Construction includes two bellows, an intermediate pipe, and a tie rod system designed to absorb thrust forces from internal pressure. The welded-end equivalent is the MWL series. Movement Capabilities and Limitations MFL type is...
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Expansion Joints - Type MWP | Macoga - Macoga

Expansion Joints - Type MWP | Macoga

Expansion Joints - Type MWP | Macoga
Macoga
Macoga MWP Hinged Expansion Joints The Macoga MWP series are metallic expansion joints with a single bellows, welded ends, and a hinged system. The corresponding flanged version is designated MFP. The hinge mechanism allows angular movement in a single plane and is not intended for axial or multi-plane lateral displacement. Operation in Piping Systems The...
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Expansion Joints - Type MFP | Macoga - Macoga

Expansion Joints - Type MFP | Macoga

Expansion Joints - Type MFP | Macoga
Macoga
Macoga MFP Hinged Expansion Joints Macoga MFP are metallic expansion joints with a single bellows, equipped with hinged assemblies and flanged ends. The welded-end variant is designated MWP. The hinge system allows angular movement in a single plane and is not intended for axial or lateral displacement when used as a single unit. Operation and Load...
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Expansion Joints - Type MWY | Macoga - Macoga

Expansion Joints - Type MWY | Macoga

Expansion Joints - Type MWY | Macoga
Macoga
Macoga MWY Lateral Expansion Joints Macoga MWY are metallic double hinged expansion joints with weld ends. The assembly consists of two bellows connected by an intermediate pipe and a hinge system. Designed to absorb lateral and angular movements in a single plane, these joints are not intended for axial displacement. Operation and Load Handling The hinge...
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Expansion Joints - Type MFY | Macoga - Macoga

Expansion Joints - Type MFY | Macoga

Expansion Joints - Type MFY | Macoga
Macoga
Macoga MFY Hinged Expansion Joints Macoga MFY are metallic expansion joints of the double hinged type with flanged ends. Construction includes two bellows, an intermediate pipe, and a dual hinge system. Designed to absorb lateral and angular movements in a single plane. Operation and Load Management The hinge assemblies absorb pressure thrust, eliminating...
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Expansion Joints - Type MWC | Macoga - Macoga

Expansion Joints - Type MWC | Macoga

Expansion Joints - Type MWC | Macoga
Macoga
Macoga MWC Gimbal Expansion Joints The Macoga MWC is a metallic expansion joint of the gimbal type, supplied with welded ends. It incorporates two pairs of hinges mounted on a common floating gimbal ring, allowing the bellows to accommodate angular movement in any plane. The corresponding flanged version is designated MFC. Operation and Limitations The...
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Expansion Joints - Type MFC | Macoga - Macoga

Expansion Joints - Type MFC | Macoga

Expansion Joints - Type MFC | Macoga
Macoga
Macoga MFC Gimbal Expansion Joints Macoga MFC are metallic gimbal-type expansion joints with flanged ends. The assembly uses two pairs of hinges on a common floating ring, allowing the bellows to absorb angular movement in any plane. The welded-end equivalent is the MWC series. Operation and Load Handling The gimbal ring, hinges, and pins are engineered...
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Expansion Joints - Type MWK | Macoga - Macoga

Expansion Joints - Type MWK | Macoga

Expansion Joints - Type MWK | Macoga
Macoga
Macoga MWK Expansion Joints Macoga MWK are metallic expansion joints of the double articulated type, featuring two bellows, an intermediate pipe, and weld ends. The flanged version is designated as MFK. These assemblies are designed for lateral movements in any direction and angular movement in a single plane. Operation and Load Management The MWK...
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Expansion Joints - Type MFK | Macoga - Macoga

Expansion Joints - Type MFK | Macoga

Expansion Joints - Type MFK | Macoga
Macoga
Macoga MFK Expansion Joints Macoga MFK are metallic expansion joints of the double articulated type with flanged connections. The assembly consists of two bellows, an intermediate pipe, and a double hinge system, designed to absorb lateral displacements in any direction and angular movement in a single plane. The welded-end version is designated as MWK....
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Expansion Joints - Type MWCD | Macoga - Macoga

Expansion Joints - Type MWCD | Macoga

Expansion Joints - Type MWCD | Macoga
Macoga
Macoga MWCD Expansion Joints Macoga MWCD expansion joints are metallic double gimbal type compensators, featuring two bellows, an intermediate pipe, and a dual cardan/gimbal system. They are available with weld ends or flanges and are designed to absorb lateral and angular displacements in any direction. Operation and Loads The MWCD transfers pressure...
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Expansion Joints - Type MPBE Elbow pressure balanced | Macoga - Macoga

Expansion Joints - Type MPBE Elbow pressure balanced | Macoga

Expansion Joints - Type MPBE Elbow pressure balanced | Macoga
Macoga
Macoga MPBE Elbow Pressure Balanced Expansion Joints Macoga MPBE units are metallic pressure balanced elbow expansion joints designed for installation at pipeline direction changes. The assembly absorbs axial and/or lateral movements while simultaneously balancing the thrust force generated by internal pressure. Operating Principle The design incorporates...
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Expansion Joints - Type MPBI Inline pressure balanced | Macoga - Macoga

Expansion Joints - Type MPBI Inline pressure balanced | Macoga

Expansion Joints - Type MPBI Inline pressure balanced | Macoga
Macoga
Macoga MPBI Inline Pressure Balanced Expansion Joints Macoga MPBI are metallic inline pressure balanced expansion joints designed for straight pipeline sections. The assembly absorbs axial or lateral movements while minimizing the transmission of pressure thrust to piping, pumps, turbines, or other sensitive equipment. Operating Principle The construction...
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Expansion Joints - Type MFF | Macoga - Macoga

Expansion Joints - Type MFF | Macoga

Expansion Joints - Type MFF | Macoga
Macoga
Macoga MFF Expansion Joints Macoga MFF expansion joints are metallic, flanged & flued type, classified as thick wall construction. They consist of two half-segments formed from flat annular plates; the outer edges are flanged, and the inner edges are flued. The halves are welded together and typically integrated into the shell of a heat exchanger....
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Expansion Joints - Type MEP | Macoga - Macoga

Expansion Joints - Type MEP | Macoga

Expansion Joints - Type MEP | Macoga
Macoga
Macoga MEP Externally Pressurized Expansion Joints Macoga MEP are metallic expansion joints of the externally pressurized type, classified as axial non-pressure balanced. The process fluid pressure acts on the outside of the bellows, a configuration that increases stability for long axial movements. Operation MEP type is primarily used in piping systems...
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Expansion Joints - Type MJA | Macoga - Macoga

Expansion Joints - Type MJA | Macoga

Expansion Joints - Type MJA | Macoga
Macoga
Macoga MJA Jacketed Expansion Joints Macoga MJA expansion joints are metallic, jacketed type units with two bellows: an inner bellow for the process medium and an outer bellow for the heating, cooling, or thermal maintenance jacket. These assemblies are specified where conventional insulation is insufficient or where the process medium must be maintained...
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Expansion Joints - Type MRR | Macoga - Macoga

Expansion Joints - Type MRR | Macoga

Expansion Joints - Type MRR | Macoga
Macoga
Macoga MRR Expansion Joints Macoga MRR are metallic expansion joints designed for high internal pressure applications. Reinforcement rings are positioned around the bellows convolutions to support the root area and limit deformation under pressure loads. Construction and Movements The MRR series can be configured for axial, lateral, or angular movement...
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