Flexseal Magnum Rubber Flexible Drainage Coupling

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Product Description

The unique Flexseal Magnum Couplings are 370mm wide - the widest flexible coupling currently available in the marketplace. The greater width enables greater tolerance when cutting the pipe ends, and considerably more freedom of movement during any ground settlement. The coupling will also withstand pressures of up to 4 bar, dependant on the diameter. The Flexseal Magnum is available in diameters of between 300mm and 3000+ mm, and as with the leading Flexseal Standard Coupling range, is suitable for connection of pipes of virtually any material.

Magnum Couplings are made from EN681-1 EPDM rubber and have Grade 1.4301 (304) stainless steel clamps and shearbands. Flexseal can also supply this product with nitrile sleeves for use with effluent which may be contaminated with hydrocarbons. Couplings are also available with Grade 1.4401 (316) stainless steel for improved corrosion protection.


  • Its greater width enables an easier and more efficient on site installation process
  • Provides a high performance seal on large diameter pipelines
  • Offers greater allowance for pipe movement
  • On site pipe cutting is made easier due to the increased tolerance on the pipe ends
  • Allows for greater angular deflection at the point of connection
  • Provides increased pressure rating on most diameters


  • 300mm - 399mm    Max 4.0 Bar
  • 400mm - 499mm    Max 2.5 Bar
  • 600mm - 699mm    Max 1.5 Bar
  • 1000mm - 1399mm    Max 1.0 Bar

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Material EPDM Pipe Diameter 1100mm - 1199mm
1000mm - 1099mm
900mm - 999mm
1300mm - 1399mm
800mm - 899mm
1200mm - 1299mm
600mm - 699mm
700mm - 799mm
500mm - 599mm
400mm - 499mm
300mm - 399mm
1400mm - 1499mm

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Flexseal Magnum Rubber Flexible Drainage Coupling

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