Multi Tube Bellow (MTB) Installation


Multi Tube bellow is one the products that we market for Insulcon B.V.  More information of the MTB can be found at our product page for Multi Tube bellow.

KLAY EnerSol has recently completed Multi Tube Bellow Installation for a customer in Malaysia. The scope of works includes modification of the steel support system which is engineered and fabricated using Stainless Steel material. This modification is crucial due to unavailability of fixing point to hang the MTB at the side of the roof opening.


Figure 1: Support angle and Multi Tube Bellow

Prior to installation, the existing insulation materials were removed and affected area where the steel supports were planning to be installed is cleaned up. Also, unused anchor from previous installation were also removed.

Figure 2: Existing insulation materials that need to be removed first

After the removal of the existing insulation materials is done, the steel support needed to be welded at the edge of the furnace opening. The Stitch Weld method was applied in order to prevent the steel support from warping.

Figure 3: The new support system constructed from Stainless Steel

Each Multi Tube Bellow is supplied out of two parts which assembled together at the roof opening. For each part, half section is mounted at the support angle while the other part is fixed at tube.

Figure 4: Complete Installation of Multi Tube Bellow

Key Benefits :

  • The furnace efficiency improved due to significant reduction of cold air ingress
  • The Multi Tube Bellow block radiant heat loss and can withstand temperatures of up to 1370°C
  • Personnel safety enhancement
  • The possibility of reducing the tube damage caused by tube quenching
  • Allow unrestricted movement of the tubes while maintaining complete seals