Bellow pressure balanced corrugated expansion joints are composed of two working bellows connected by a working bellows or intermediate pipe and a balanced bellows and structural parts such as elbow or tee, header tie rod, end plate and spherical and conical washers.Mainly used for absorbing axial and transverse combined displacement and can balance the bellows pressure thrust of the expansion joint.The straight pipe pressure balanced corrugated expansion joints produced by our company adopt the optimised design of American EJMA standard.The products meet the domestic market demand and are exported to twenty-two foreign countries at the same time.Widely used in aerospace, navigation, petrochemical, smelting, power plants, information industry, industrial equipment manufacturing and engineering pipeline system connection, effectively ensure the pressure pipeline in the delivery of a variety of hazardous toxic flammable and explosive media when the high safety performance, to avoid leakage of contamination caused by the sea, the sky, factories and other environmental pollution.Its products are characterised by high temperature resistance, high pressure resistance, corrosion resistance, fatigue resistance, wear resistance.