Advantages of Metal Double Bellows Expansion Joint:
The Metal double bellows expansion joint can absorb the lateral displacement of the pipeline through the angular deflection of the corrugated pipe, which has the advantage of large compensation capacity and no internal pressure thrust on the longitudinal pipe section. It cannot balance the internal pressure thrust of the longitudinal pipe section. The large rod compensator can be used on L-shaped and Z-shaped pipe sections. This type of corrugated compensator can absorb lateral displacement in various directions through angular deflection, and has a large compensation amount. It has no pressure and thrust effect on the support, and has a simple structure. It is widely used in various L-shaped and Z-shaped pipe sections with large displacement. Taking the large pull rod transverse corrugated compensator as an example, this article explains its application occasions. The intermediate pipe and corrugated pipe of the pipeline compensator only bear the circumferential stress of internal pressure, and do not bear the axial force of internal pressure, that is, the axial force of internal pressure improves the force state of the compensator. When the horizontal pipe section undergoes displacement due to temperature changes or internal pressure thrust, the rectangular structure composed of large pull rods can undergo parallelogram deformation. At this time, the corrugated hoses at both ends of the compensator undergo opposite side stretching and compression deformation, allowing the horizontal pipe section to move freely in the transverse direction and absorb stress.
