EPDM, Perbunan, Tied, Steel Reinforced

Engineered Products & Solutions rubber bellows type EPS52 with EPDM or Perbunan rubber liner and high tensile synthetic fibre reinforcement and steel wire reinforced raised faces fitted with flanges drilled to BS4504 PN16 in carbon steel with integral bellows stabilising collar.


  • Liner: EPDM or Perbunan Rubber
  • Reinforcement: Corrosion resistant steel wire mesh
  • Cover: EPDM Rubber (Perbunan Rubber has weather resistant Chloropen (CR))
  • Flanges: Carbon Steel type ST37.2, Zinc Plated
  • Tie Bars: ISO 898 Gr.8.8 Carbon Steel Zinc Plated


  • Colour Code: EPDM – Orange Triangle, Perbunan – Red Triangle
  • Markings: Stenflex ‘R’, Size, Date of Manufacture, Pressure rating

Type approvals

Stenflex type AS has been approved by the German TUV to DIN4809, PRUFNR 910 10 30. Flame resistant test in engine and plant rooms, German Lloyd. GL-NR 33576HH.DNV Lloyds Register.