Flexseal Rubber Flexible Drainage Chemical Coupling 100mm - 1000mm

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Product Description

Flexseal Rubber Flexible Drainage Chemical Coupling 100mm - 1000mm


Flexseal chemical couplings provide a flexible and watertight connection on underground drainage systems that require a high chemical resistance to a wide range of chemicals. Maunfactured to meet specific site requirements, Flexseal chemical couplings are able to withstand the widest possible range of chemicals, due to the shear band and clamping bands encasing a high performance elastomeric sleeve with a chemically resistant one piece Fluoropolymer liner and expanded PTFE seals.

Chemical Resistance

The FEP liner and PTFE seals are chemically inert and solvent resistant to most chemicals with the exception of molten alkali metals, fluorine at elevated temperatures and other complex halogenated compounds, for example, chlorine trifluoride at elevated temperatures and pressures.

In situations of extreme temperatures, 80% sodium hydroxide, metal hydrides, aluminium chloride, ammonia and certain amonios (R-NH2) may attack the film in a manner similar to molten alkali metals.

Although special testing may be required when such extreme reducing or oxidizing conditions are evident, the FEP liner and PTFE seals exhibit a very broad range of chemical and thermal serviceability. Final selection should be based on functional evaluations or experience under actual end use conditions.


  •     Meet specific site and contractor requirements
  •     Watertight joints on chemical drainage systems
  •     Withstand broad range of chemical substances


  •     Used on chemical resistant drainage systems
  •     Joint flexibility enables pipeline settlement during construction and differential ground movement
  •     Suitable for above ground and underground drainage applications


  • Provides a high performance seal on large diameter pipelines
  • Offers greater tolerance for pipe movement
  • On site pipe cutting is made easier due to the increased tolerance on the pipe ends


Product Documents


Material EPDM

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Flexseal Rubber Flexible Drainage Chemical Coupling 100mm - 1000mm

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