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Spring Return Tensioners

Spring Return Tensioners

SRT Spring Return Bolt Tensioner

The Spring Return design dramatically increases productivity and safety on the job site when compared to older technology manual return tensioners.

  • Piston stroke indication
  • Compatible with MRT Tensioner range 
  • Unique quick release bridge adaptation
  • Piston/cylinder misalignment compensation
  • Bolt coverage from 3/4" to 4" (20-115mm) with just 8 tools
  • Designed to fit BS1560/ANSI B16.5/API flanges
  • Fully enclosed load cell design eliminates entry of debris into piston retraction mechanism 
  • Piston over-stroke eliminator to prevent over stroking and blowing a seal
  • Twin hydraulic couplings for multiple tool connections
  • Requires stud to protrude above nut by 1 x bolt diameter 
  • Application specific tooling available. Contact factory for details
  • 10mm piston stroke

Max tool pressure: 1,500 bar (21,750 psi)

Bolt protrusion  above nut: 1 x bolt diameter (minimum) 

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