IMPA: 735148

Rubber Bellow Expansion Joints with DIN Flange for Marine Piping Systems

Rubber bellow expansion joints with DIN flanges are essential components for marine piping systems, designed to absorb vibration, thermal expansion, and mechanical movement, which are common in shipboard machinery and pipelines. These joints effectively reduce stress on connected equipment and prevent leaks and failures due to misalignment or thermal cycling.

Constructed from high-quality elastomer (EPDM or Neoprene) and supplied with robust DIN standard flanges, these expansion joints offer excellent resistance to seawater, oils, and abrasive media. They are suitable for use in engine cooling systems, fire mains, discharge lines, and other critical marine applications. Available in a wide range of sizes and pressure ratings to meet diverse ship chandler requirements.

Our rubber bellow expansion joints are tested for reliability and long service life, ensuring minimal maintenance and downtime. They are supplied with certification upon request, meeting international marine standards for safety and performance.

Key Features

Technical Specifications

ParameterValue
StandardDIN Flange
Size RangeDN25 to DN600 (1" to 24")
Working PressureUp to 16 bar (232 psi)
Temperature Range-20°C to +120°C (-4°F to +248°F)
Bellow MaterialEPDM / Neoprene
Flange MaterialCarbon Steel / Stainless Steel
Movement AbsorptionAxial, Lateral, Angular
ApplicationsMarine piping, engine cooling, fire mains

Frequently Asked Questions

What sizes are available?

We offer rubber bellow expansion joints with DIN flanges in sizes from DN25 to DN600 (1" to 24"). Custom sizes can be manufactured upon request.

What is the maximum working pressure?

The working pressure depends on the size and elastomer used, but typically up to 16 bar (232 psi). For specific applications, please provide your requirements for accurate selection.

Are these expansion joints suitable for seawater use?

Yes, the EPDM bellow provides excellent resistance to seawater and is ideal for marine environments. Neoprene is also available for oil resistance.

Do you supply marine certifications?

Yes, test certificates and marine certifications (such as type approval) can be provided upon request to meet your classification society requirements.

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