HIGH PRESSURE EXPANSION JOINTS
MADE FROM HASTELLOY C-4

These high pressure Hastelloy Expansion Joints were the perfect solution for a Cement Plant in Germany.

 

2.5 meters-long Expansion Joints

These large sized DN 600 and DN 550 Expansion Joints are 2.5 meters long and were demanded high requirements for the Expansion Joint design as well as on the testing, due to extremely high-pressure operating conditions together with the requirements to absorb large axial movements.
In order to fulfil the above requirements Belman designed these special high pressure Expansion Joints with Equalising rings that are externally fitted on the bellows. The purpose of the rings is to reinforce the bellows against internal pressure and enhance the stability and pressure integrity.

 

Made from Hastelloy

As per the client specifications the bellows and the inner sleeves are made from Hastelloy C-4 – a material with outstanding high temperature stability as well as high ductility and corrosion resistance.

 

Quality control

In addition, several quality tests including 100% penetrant test, radiographic test, leak test have been performed in order to ensure the safety requirements.