We manufacture metal bellows and fabric expansion joints from DN50 to 3000mm diameter with different temperature.The pressure ranges for these designs range from full vacuum to 120 MPa.

The bellow material can be sus321,304,or 316L

The bellows can be completed with pipe end,flanges,etc..

Flange codes:AISI,DIN,JIS or GB,BS standard

Design and manufacture code:EJMA

Hinge type expansion joint is a joint that absorbs angular rotation of single plane. As thrust due to internal pressure, weight of the joint itself and external force are fully supported by the hinge pin and the hinge arm, only the forced required for bending the bellows acts on the anchor. It is effective for piping where anchors on the top of tower or those around an apparatus can not be accommodated completely. By combining 2 or 3 Hinge type expansion joint, the amount of elonggation of the pipe can be absorbed by one or continuous operation of displacement in the lateral deflection and angular rotation.