CTST Tensioner

The Topside tensioners – CTST are reliable, economical and dependable insert type hydraulic tensioner that is proven in the marketplace.

The tool is designed to fit on to most ANSI B16.5, ANSI B16.47 Series 1, MSS-SP44, API-6A and API17D flanges.

Simple to use and designed to fit many applications, each base tool can be converted for use on a different bolt size by the use of a conversion kits.



  • Long ram stroke
  • High quality material
  • Can be split into three main components
  • Industry standard hydraulic connections
  • Wide range


  • Reliable
  • Easy to maintain
  • Fit for purpose
  • Very little downtime due to low maintenance requirements
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