The axial internal pressure expansion joint (also known as the universal expansion joint) is composed of a bellows and related structures. It is mainly used to absorb axial displacement, as well as a small amount of lateral and angular displacement. With a simple structure and low cost, it should be the first choice wherever applicable in pipeline systems.

Our company's axial metal bellows expansion joints are optimally designed in accordance with the American EJMA standard. While meeting domestic market demands, the products are exported to 22 foreign countries. They are widely applied in aerospace, marine, petrochemical, metallurgical, power plant, information industry, industrial equipment manufacturing, and engineering pipeline system connections. These expansion joints effectively ensure the high safety performance of pressure pipelines when conveying various hazardous, toxic, flammable, and explosive media, avoiding environmental pollution caused by leakage in oceans, skies, factories, etc.

Product Name Axial Internal Pressure Bellows Expansion Joint

Nominal Diameter DN15～DN2000 (mm)

Working Pressure 0.25～2.5 (MPa)

Design Temperature －20℃～450℃

Materials SUS304, SUS321, SUS316L, SUS309, SUS310S

Execution Standard GB/T 12777-2008