Elbow type pressure balance expansion bellows are specialized piping components designed to absorb axial and lateral movements at 90-degree pipe bends without transferring pressure thrust forces to sensitive equipment. They utilize a balancing bellows?connected via tie rods to the main flow bellows?to equalize internal pressure and eliminate the need for heavy main anchors.
Key Features and BenefitsBalance Pressure Thrust: By using a balancing bellows with the same cross-sectional area as the flow bellows, the pressure load is counteracted, keeping the system in equilibrium.Protection of Sensitive Equipment: Ideal for protecting pumps, turbines, and compressors from pressure loading.Absorb Movement: Capable of handling axial deflection and lateral movement simultaneously.No Main Anchors Needed: Because pressure forces are balanced internally, main anchoring is not required, reducing structural costs.Common Applications: Often used at 90-degree piping turns, such as at the inlet of a turbine or compressor.
