CTST Bolt Tensioners & Conversion Kits

We supply the most reliable CTST series tensioners in the industry. These tensioners not only have a wide range of capabilities and sizes but have been engineered specially for most ANSI B16.5, ANSI B16.47 Series 1, MSS-SP44, API-6A and API-17D flanges.

All of the tensioners in this series have a maximum working pressure of 21,750 PSI/1500 Bar.

There are six load cell sizes which cover a bolt thread size range of 3/4″-4″ (20mm-100mm). Each load cell can be converted to a specific hex size by using a conversion kit.

Each conversion kit consists of a thread insert/puller, a bridge, and a nut rotating socket available in all sizes.

Please let us know if you have a special need request. We understand the demand for a high percentage of bolt yield and special request sizes. For reference, check out our recent case study below!