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Bolting Systems Products - Tensioners

SRT Series
SPRING RETURN BOLT TENSIONER

The design of the Bolting Systems SRT series spring return bolt tensioner dramatically increases productivity and safety on the job site when compared to obsolete manual return tensioners.

  • Piston overstroke prevention
  • 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 - 115 mm) 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. 10 mm piston stroke
  • Max tool pressure: 21,750 psi (1,500 bar) Bolt protrusion above nut: 1 x bolt diameter (minimum)

 

View Catalog - SRT Series - USUKCNDEESFRITTR

MRT Series
MANUAL RETURN BOLT TENSIONER

The Bolting Systems MRT series manual return bolt tensioner incorporates unique quick-release bridge adaptation, and range of adapter kits provide maximum flexibility.

  • Features a piston stroke limit, visible indicator.
  • Piston/cylinder misalignment compensation bolt coverage from 1" to 3-1/2" with just 6 tools designed to fit BS1560/ANSI B16.5/API flanges
  • Unique quick-release bridge adaptation
  • Application-specific tooling available. Contact factory for details.
  • Piston stroke: 15mm (excluding mrt1 - 10mm)
  • Max tool pressure: 21,750 psi (1,500 bar)
  • Bolt protrusion above nut: 1 x bolt diameter
  • ‘D’ includes an allowance for tool removal after bolt tightening with 15mm tool stroke
  • Weight excludes puller sleeve
  • To make a complete MRT tensioner, choose an adapter kit and a load cell.
  • Semi-compatible with SRT tensioners. Only compatible with SRT bridges; not puller sleeves. SRT puller sleeves cannot be used with MRT load cell.

 

View Catalog - MRT Series - USUKCNDEESFRITTR

SST Series
STUD TENSIONER

SST stud tensioner quick reaction subsea tensioner incorporates the quick reaction feature to reduce dive fatigue, improving dive safety and productivity.

  • Visible piston stroke indication Positive ‘over-stroke’ stop to prevent piston expulsion/seal damage.
  • Piston/cylinder misalignment compensation
  • Anti-slip cylinder surface for improved handling
  • Low friction seals
  • Anti-corrosion coating
  • Bolt coverage from 3/4" to 4" (M20 to M100)
  • Designed to fit BS1560/ANSI B16.5/API flanges, as well as most compact flange designs
  • Piston stroke: 30mm except for SST1 - 20mm
  • Max tool pressure: 21,750 psi (1,500 bar)
  • Bolt protrusion above nut: refer to chart (specification) for stud protrusion requirements
  • ‘D’ includes an allowance for tool removal after bolt tightening with 30mm tool stroke
  • Product development is constantly taking place and dimensions may change without notice

 

View Catalog - SST Series - USUKCNDEESFRITTR

W Series

Bolting Systems WDD series wind tensioners are intently designed with standard features that enhance durability, efficiency and safety. The WDD series is built to lower the average life-cycle costs of wind tensioners.

Quality Means Lower Life-Cycle Costs:

  • Achieves 90% proof load requirement for ISO 898 Grade 10.9 bolts
  • Fully enclosed load cell eliminates debris in piston retraction mechanism
  • Auto-Engaging Geared Nut Rotator
  • Self-energizing, long life seals


Enhanced Usability:

  • Piston stroke limit indication
  • High-pressure swivel coupling (swivel is optional on WSS & WSL)
  • 19,580 psi (1,350 bar maximum operating pressure)
  • Automatic piston retraction mechanism


Designed with Safety in Mind:

  • Overstroke prevention for safe operation
  • Anti-slip grip surface
  • Tool lifting-strap as standard

 

View Catalog - W Series - USUKCNDEESFRITTR