HTL Bolt Tensioners

HTL Bolt Tensioners

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ST Spring Return Tensioner Features and Benefits

  • Piston stroke limited indication
  • Compatible with SRT Tensioner Range
  • Piston/Cylinder misalignment compensation
  • Bolt coverage from 1" to 3 1/2" with just 4 tools
  • Designed to fit BS1560/ANSI B16.5/API flanges
  • Unique quick-release bridge adaptation


  • Piston stroke - 15mm (excluding MRT1 - 10mm)
  • Max tool pressure - 21, 750 psi (1,500 bar)
  • Bolt protrustion above nut = 1 x bolt diamater
  • 'D' includes an allowance for tool removal after bolt tightening wih 15mm tool stroke
  • Weight excludes puller sleeve
  • Product development is constantly taking place and dimensions may change without notice.