Fabric expansion joint can compensate the vibration of fan and air duct and the deformation of pipeline.It can compensate axial,transverse,angular and other products.It has the characteristics of no thrust,simplified support design,corrosion resistance,high temperature resistance, noise reduction and vibration reduction,and is especially suitable for hot air pipes and smoke pipes in power plants. The fiber fabric and thermal insulation cotton in the non-metallic Compensator have the functions of sound absorption and vibration isolation,which can effectively reduce the noise and vibration of the boiler,fan and other systems.It is simple structure,light weight and convenient maintenance.