Rubber Expansion Joints

Rubber Expansion Joints


CORI Engineers Pvt Ltd, an ISO 9001: 2008 company offers a wide range of Rubber Expansion Joints marketed in the brand name Corirubber®. The company belongs to the IGP Group based in Chennai, established 50 years ago. It is known for rubber expansion joints, rubber moulded components and rubber lining service for anti-corrosive and abrasion resistance applications. CORI specialises in the field of rubber products and services activities for over 25 years. It has 3 manufacturing units for rubber products with complete infrastructure and essential testing facilities. It is also the proud recipient of the "Best Quality supplier Award" for the year 2010 from Kirloskar Oil Engines Ltd.
This includes:

  • Series 100 – single spool wide arch
  • Series 125 - multi arch type
  • Series 150 – filled arch type
  • Series 200 – Wide arch type
  • Series 400 – spool type double arch
  • Series 450 – fabricated metal flange type
  • Series 500 – PTFE lined type
  • Series 600 – bus duct/rectangular/circular/square bellows
  • Series 700 – twin sphere model
  • Series 800 – concentric reducer type
  • Series 825 – clamped type
  • Series 850 – enlarged flange type
  • Series 875 – "U" type/straight flanged connectors/flexible rubber pipe/no arch type.

Performance and construction features:

  • Test pressure up to 24 bar (up to 300 NB)
  • Cyclic movement test for 5000 cycles under design pressure conducted on sizes 1600 NB, 2100 NB and 2200 NB bellows
  • Manufactured sizes up to 3600mm (144 inches)
  • Safety factor built in up to 4:1
  • Low spring rates
  • Greater movement per arch
  • Manufactured in single or multiple arches
  • Choice of eight liner elastomers
  • Choice of cover to match liner materials or different materials for better resistance to external conditions
  • Filled or unfilled arches
  • Galvanised carbon steel or stainless steel split backup rings
  • Can be built with permanent offset to compensate for existing or designed piping misalignment.

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