Riser Tensioner Hoses

API Spec. 17K

High pressure hoses used for transporting hydraulic fluids in offshore riser tensioner systems.

Riser Tensioner Hose Construction


Internal diameter 6" (smooth bore) and 6-8" (rough bore)
Bore type full flow, smooth bore and rough bore
Liner type H2S resistant PA and HNBR
Design pressure 5,000 psi
Coupling bonded
Operating temperature -30° C to +70° C (-22° F to 158° F)
Max. available length 60 m (200ft)
For further technical details download the datasheet

Features & Benefits

  • Used for transporting hydraulic fluid between gas filled accumulators and large hydraulic cylinders. Although they are not in direct contact with pressurised gas, the hydraulic fluid will invariably contain dissolved gas after some time, even in configurations with pistons between the gas and the liquid phase. There is a clear risk that this dissolved gas can cause collapse of the hose liner and ultimate failure following decompression. Since API 7K does not include gas exposure testing, it should not be considered for riser tensioner hose applications.
  • Oil and glycol resistant liner