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Tensioning Tooling

Hydraulic Rod Tensioning System

A patented tensioner with a smaller footprint and higher preload capability than standard tools — designed for steam and nuclear turbines with limited stud accessibility.

Hydraulic Rod Tensioning System

Product Overview

Our Hydraulic Rod Tensioning System is a patented enhancement of our line of standard hydraulic nuts and tensioners, which already offer the industry versatility, flexibility and modular design. With our hydraulic rod tensioning system, design-limiting considerations, such as coefficient of friction due to torquing, are no longer a concern.

The concept of the Hydraulic Rod Tensioning System was born of the need for a tensioning solution that could be retrofitted to existing studs and suitable for high temperature applications. This tensioner offers the market a method of tensioning that does not require special features on the stud for gripping. Using the outside diameter of the nut as a gripping surface for tensioning satisfies this need.

We are also able to offer high load capacity by placing the hydraulic cylinder above the stud and nut which maximizes the hydraulic working area for a given cylinder outside diameter.

Key Features

  • High Temperature Capability
  • High Load Capacity
  • Minimum Footprint Required
  • Easily Retrofittable to Existing Studs
  • Simultaneous Tensioning Capability
  • Hydraulic Tensioner Separate from Nut
  • Stud Extension Not Required
  • Patented Design

Applications

Steam Turbine Casings
Nuclear Turbine Flanges
High Temperature Applications
Limited Stud Accessibility Areas
No Exposed Thread Above Nut
Retrofit Applications
Gas Turbine Cases
Power Generation Equipment

Technical Specifications

DesignPatented — uses OD of nut as grip surface
Temperature CapabilityHigh temperature — no limiting seals
Thread RequirementNo stud extension required
Retrofit CapabilityRetrofittable to existing studs
Tensioning ConfigurationSimultaneous multi-bolt capable
FootprintMinimum footprint design
Tensioner LocationHydraulic cylinder above stud/nut
Product Demo

See It In Action

Watch a live demonstration of our Hydraulic Rod Tensioning System.

Ready to Order or Need Help Specifying?

Our engineers are available to assist with product selection, sizing, and custom configurations.