Bachmann Industries India Limited

A total commitment to achieving customer satisfaction by understanding his requirements and supplying equipments and services of world class quality.

Expansion Joints

BACHMANN India supplies a complete range of non-metallic expansion joints for applications ranging from low-temperature thermal plants, and high-dust cement mills to high-temperature steel plants. Backed by technical support of Bachmann USA (a founder member of EJMA), BACHMANN has developed multiple ranges of fabric expansion joints consisting of:

a)      “Elastoflex” Expansion Joints – Single membrane expansion joints for low temperatures.
b)      “Ultraflex” Expansion Joints – High temperature range expansion joints for the utility industry.
c)      “Ductflex” Expansion Joints – Heavy duty non-metallic joints for temperature upto 1400 deg.C
d)       Gas Turbine Expansion Joints – Patented designs for GT application
e)       Special Gaskets – for high temperatures and GT applications.
f)        Pipe-penetration Joints

exp.joint

  • Designed for typical operating temperatures of 100°C to 1180°C
  • Totally integral design requiring no cladding/ welding at site
  • Light weight, easy field- spliced and repaired
  • Capable to withstand the system loads for heavy duty operations and long life
  • Dome Seal allows the insulating materials to fully expand after compression – eliminating “hot spots” on the fabric belt
  • Can handle both lateral and axial movements with very low spring force
  • Totally integral design requiring no cladding/ welding at site
  • Same thermal growth coefficients for adjacent components eliminate the potential for damaging stress

 

 

The BACHMANN GTEJ (Gas Turbine Expansion Joint) range incorporates unique design features to combat the thermal extremes faced while operating at high exhaust temperatures.

  • All welded components are of same material with identical thermal growth coefficients designed for typical operating temperatures of 450°C to 680°C to eliminate the potential for damaging stress.
  • Stainless steel liners are of a bolted construction with slotted holes to allow full thermal differential expansion.
  • Hot gas flow path to belt element is prevented by a pinned Dome Seal arrangement, which follows the frame’s thermal movement and allows the insulating material to fully expand after compression eliminating ‘hot spots’ on the fabric belt.
  • ‘Channel clamp fixing’ system of belts enables to prevent gas leakage and it can handle both lateral and axial movements with very low spring force.

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