Product: Hydraulic Rod Tensioner


  • Ease of cover flange face blue check inspection
  • Greatly reduced installation times vs hydraulic torqueing



  • High temperature service (950°F)
  • Limited spot face and high residual load applications
  • Easily retrofittable to existing requirements
HRT - Riverhawk



1. Torqueing of nuts in a defined sequence resulted in insufficient load leading to the warped flange condition

2. Warped casing from in-service use made closure difficult

3. Long assembly times using traditional torqueing methods

4. Space constraints


1. Improved clamping load and uniformity from hydraulic tensioning successfully closed the warped flange

2. Independent loading easily performed to close gap

3. Reduced assembly time from 2 days to 3 hours

4. Tensioning system with washers fit within existing spot face and tensioned to an installed residual stud stress of 45,000 psi.

More Riverhawk Resources