Fabric expansion joints also known as Non metallic compensators, it is one kind of compensators. The Fabric expansion joints are composed by flexible fabric, flanges or pipe ends, thermal insulation materials together with tie rods and nuts which provides large axial, lateral and angulare deflection within smaller dimensional range, its host material are fiberglass fabric and coated products. The application of fabric expansion joints be able to simplify the design of support abutment and save plenty of materials and labor force, also be able to play an active role to eliminate noise and isolate the vibration. The fabric expansion joints has excellent high temperature resistance, corrosion resistance and leak tightness performance by use of high polymer material such as organic silicon and fluorine, especially be suitable for hot air ducts and smoke dust ducts.

The Fabric expansion joints in Bellowman can be divided into two stuctural type which is Round fabric expansion joints and Rectangular fabric expansion joints.

The insulation material of the Fabric expansion joints including: The Single layer or Multiple layers composite material of Silicon rubber coating fiberglass cloth, Viton coating fiberglass cloth, PTFE coating fiberglass cloth, EPDM coating fiberglass cloth, NBR coating fiberglass cloth and PTFE film, along with Ceramic fiber flameproof fabric, Aluminium silicate wool, Stainless steel wire mesh reinforcement and Fiberglass cloth.

This composite material were designed to provide maximum strength and protection to the Fabric expansion joints under the environmental conditions which high temperatures and corrosive atmospheres.

The characteristics of Fabric expansion joints are :

      ● Compensate the thermal expansion---The fabric expansion joints be able to provide major multi-dimensional  
         compensation within smaller dimensional range.

      ● Compensate the Installation errors--- In the piping connection, the systematic errors is inevitable, the fabric    
         expansion joints be able to eliminate the installation errors well.

      ● Noise elimination and Vibration isolation--- The Fiberglass cloth and the Aluminium silicate wool in themselves are 
         with the functions of Noise elimination and vibration isolation, so the Fabric expansion joints be able to decrease the
         noise, vibration of the boilers and blowers effectively.

      ● Without reverse thrust--- Due to the main material of the Fabric expansion joints is fiberglass cloth, there is no force
          transmission, so the use of the fabric expansion joints be able to simplify the design.

      ● With good sealing performance--- Under the effect of any kinds of medium, the fabric expansion joints with good
         sealing performance all the time.

      ● With simple structure, the installation and maintenance is convenient.

The application of Fabric expansion joints are :

      ● Gas turbine exhaust ducts

      ● Flue gas desulphurization system

      ● Warm air ducting and Industrial fumes ducting

      ● Exhaust system

      ● Flue gas channels of the Coal fired boiler and waste heat boiler.

Pls click Technical parameters to know more about Fabric expansion joints.

  
    Fabric expansion joints                          Fabric expansion joints                          Fabric expansion joints   

   
   Non-metallic compensators                   Non-metallic compensators                   Non-metallic compensators

    Fabric EJS, Application1                         Fabric EJS, Application 2                       Fabric EJS, Application 3