Our range of standard flange and pressure vessel bolt tensioners, although highly engineered, offers the most versatile and simplest method of bolt tensioning.

These ranges cover all ASME B16.5, B16.47 Series A and B flanges (among others), with the possibility of covering great ranges of bolt diameters by just interchanging bridges, sockets and pullers. Without a doubt, these standard tensioners will cover almost all pressure vessel applications (heat exchangers, reactors, columns…); under some exceptions, regardless of all potential combinations of hydraulic heads, pullers, bridges and sockets, we have designed and manufactured specific models throughout the years for very restrictive non-standard applications which are available as standard equipment.

Innovative design criteria and high quality manufacturing standards, ensures safety, simplicity of use, reliability and time saving in bolting jobs in sectors as Oil&Gas, Petrochemical and PowerGen.

Thanks to our extensive experience in “on site” bolting jobs, we appreciate the advantage of the availability of a versatile hydraulic tool.
THL series cover a wide range of diameters of bolts, up to 6”.

Main Features:

  • Max. working pressure 1.500 bar
  • Max. stroke 15 mm
  • Interchangeability of adaptors
  • High pressure quick connect couplings, with no o-rings needed, ensure better performance
  • Metric & special threads are available under request
  • Proven safety design: Pressure is released to the inside of the tool in case of exceeding the max. stroke
  • Designed for ASME B16.20, B16.17 A & B flanges, and flanges of equipment under ASME code

Data Sheet

When speed, safety and productivity are valued qualities, the family of DC Tensioners, with assisted return, is the most appropriate choice.
This family of tensioners has a unique system of assisted return, which improves the return process, maintaining dimensions identically to standard tensioners. It also has a NON-OVER STROKE system, which prevents the piston from over stroke, which avoids a very high percentage of incidents with Top Side tensioners.

Main Features:

  • Max. working pressure 1.500 bar
  • Self Contained tensioner
  • Non Over Stroke System
  • Max. stroke 15 mm
  • Interchangeability of adaptors
  • Metric & special threads are available under request
  • Pressure Gauge included to control stroke
  • Designed for ASME B16.20, B16.17 A & B flanges, and flanges of equipment under ASME code

Data Sheet