Technical Data
Large Compression Fittings Product Range

Last Updated

December 11, 2020

Flowflex reserve the right to alter the product ranges and specifications associated with its products without prior notice

Manufactured to the highest standards in the UK, our complete range of large brass compression fittings, sizes 67mm to 108mm, provides the reliability and quality demanded by todays professional installers. Fittings are designed to join copper pipe creating a heat free mechanical joint upon tightening the various nuts onto the flange faces.

  • Connects Copper Pipe to BS EN 1057


  • Commercial
  • Industrial


Flowflex operates a quality management system audited by the British Standards Institute for the manufacture and supply of fittings and components for use in all applications of the HVAC industry.

Tube Compatibility

All installers should ensure that the size of the fitting matches the size of the tube, whilst also ensuring both are in good condition and free from damage and imperfections.

Flowflex fittings are designed to connect BS EN 1057 tube, for water and gas in sanitary and heating applications.

Working Conditions

All working conditions assume that the components have been assembled and connected correctly, and adhere to their respective tube compatiblity
When planning to use our products in applications outside the scope of our recommendations, approval from us should be obtained beforehand. Please contact us in these cases.
Intermediate pressure ratings shall be obtained by interpolation

Material Specification