Expansion Joint: Pressure-Balanced

This Expansion Joint contains one or two bellows with a central pipe and an extra bellows to balance the pressure thrust. Normally it is used at a change of direction in the piping and the elbow is mounted between the flow bellows and the balancing bellows. This Expansion Joint is used in cases where the pressure thrust is considered too high when connecting the pipe system to delicate equipment as turbines. The main advantage of this Expansion joint is that it can accept axial and lateral movements while restraining bellows pressure thrust, so the main anchors and the directional main anchors will be designed to withstand the bellows spring rate so forces and moments are kept below the allowable loads.