Oil and Gas

Dilatoflex® expansion joints — reliable performance for critical oil and gas applications

Dilatoflex® expansion joints set the highest standards for critical applications. They absorb thermal movement, vibration, and misalignment, ensuring long-term performance under demanding service conditions, such as those found in the oil and gas industry.

Reliable solutions for your cooling and fuel lines

Sturdy construction

Designed for durable performance in harsh environments, helping to reduce maintenance and extend equipment life.

Equipment protection

Dilatoflex® expansion joints protect your piping installations, pumps and connected equipment against mechanical stress and premature failures, thus ensuring the long-term integrity of the system.

Vibration damping

Effectively absorb vibrations generated by pumps, compressors and rotating equipment, reducing stress on piping networks.

Compensation for misalignment

Accommodates misalignments resulting from differential settlements, reducing forces transmitted to fixed anchor points and thereby preventing structural stress and potential damage.

Our reference partners

Customers and partners who trust us around the world.

TotalEnergies
Repsol
ENGIE
Elengy
Our ranges & products

Our Dilatoflex® ranges & products

Expansion joints suitable for cooling and fuel lines, designed to absorb vibrations and compensate for misalignments under demanding service conditions.

Série K

Série K

autostable à brides tournantes

Série K
Série KP

Série KP

pression jusqu'à 25 bars

Série KP
Série KT

Série KT

à tirants intégrés

Série KT
Série T

Série T

grands débattements, brides tournantes

Série T
Série T qualité ES

Série T qualité ES

haute température

Série T qualité ES
Série NT

Série NT

petits diamètres à brides fixes

Série NT
Série Kledil®

Série Kledil®

petits diamètres, embouts filetés

Série Kledil®
Série KF1

Série KF1

avec fourreau PTFE

Série KF1
Série M

Série M

grand diamètre adaptable sur mesure

Série M
Série N

Série N

grand diamètre et grands débattements

Série N
Joints spéciaux

Joints spéciaux

(dog bone)-U-BC1

Joints spéciaux

Need technical assistance?

Dilatoflex® excellence serving reliability and safety in the oil and gas industry.

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YOUR QUESTIONS

Frequently Asked Questions

Elastomeric expansion joints are most often used in auxiliary piping systems rather than main hydrocarbon process lines. Typical applications include cooling water systems, seawater intake and discharge lines, fire protection networks, utility water systems and fuel supply lines to auxiliary equipment.

Dilatoflex® expansion joints can be used in fire safety applications when equipped with suitable fire protection. This protection helps maintain the integrity of the expansion joint when exposed to high temperatures and provides additional protection in the event of a fire.

In typical refinery applications, GZ grade elastomeric blend should be used with orange marking. GZ grade expansion joints can be used with crude oil, jet fuel (except JP-9 per MIL-F-81912, JP-10, JP-9-11), kerosene and gases (methane, ethane, propane, butane). GZ grade can also be used in compressed air applications and in cooling water circuits containing traces of petroleum products.

For cooling water systems, we recommend the ARCC grade elastomer compound. ARCC grade withstands temperatures up to 110°C at a pressure of 10 bar. It is commonly used in cooling water circuits, utility water systems, and any application requiring temperature resistance and reliable long-term performance. Please note that ARCC grade is not suitable for fluids containing traces of oil or other petroleum products. In such cases, GZ grade is generally recommended. For any specific application, please do not hesitate to contact our technical team.