​Rectangular Metal Bellows Expansion Joint/Metal Air Duct Compensator

The rectangular metal bellows expansion joint produced by our company adopts the optimized design of the American EJMA standard. According to customer requirements, we produce rectangular metal bellows expansion joints with different materials, different waveforms and structural forms. It has the characteristics of good flexibility, corrosion resistance, high temperature resistance and long fatigue life. Now it has been supplying hundreds of customers at home and abroad for many years, and the product quality is stable and reliable. Mainly used for gas turbine exhaust system, connection parts of turbine or condenser, exhaust port of water heater, seal of pressure ventilation fan, exhaust gas discharge pipeline, regenerator, precipitator and other steam and large pipeline systems. Conveying gas or dust-laden gas pipeline and fan outlet to absorb displacement or shock absorption.

Performance characteristics of rectangular metal bellows expansion joints: Rectangular metal bellows expansion joints are usually made of Corten steel or stainless steel, which are characterized by large cross-section, low pressure, high temperature, and optimized waveform. They are mainly used for conveying gas or dust-laden gas pipelines and Fan outlet, used to absorb displacement or shock absorption.

Application scope of rectangular metal bellows expansion joint:

Rectangular metal expansion joints for gas turbine exhaust systems, turbine or condenser connections, water heater exhaust ports, plenum fan seals, exhaust gas discharge piping, regenerators, precipitators and other steam and large piping systems.

Design ideas for rectangular metal bellows expansion joints:

It is important to specify the axial displacement of the expansion joint to indicate the direction of displacement applied to the expansion joint, especially on large rectangular pipes. When the lateral displacement is applied to the "critical part" with the same amount of axial displacement, the effect is much better than the case where the lateral displacement is only applied to the "non-critical part". In many instances, a long duplex rectangular metal expansion joint is the only practical solution. The raw material selection of rectangular metal expansion joints is very wide, including 300 series austenitic stainless steel, and high nickel alloys.