Metal Expansion Joints
Belflex In-Line Pressure Balanced Type Expansion Joint
In-Line Pressure Balance Expansion Joint is designed in order to absorb axial, lateral, and angular movements/deflections while eliminating the pressure thrust loads on a system without a change in the direction of the piping. This assembly consists of two bellows at line pressure and a balancing bellow tied together in which the balancing bellow is twice the area of the line pressure bellows and acts on opposite directions. The tie rod arrangements which connect the line pressure bellows and balancing bellow are responsible for restraining the pressure thrust.