Non Metallic Flexible Expansion Joint play a vital role in various process industries where Flue Gas, hot air, hot Gas is the medium. They are used for the following purposes.
 

1. To accommodate thermal Expansion of the ducts due to temperature
2. To accommodate minor duct misalignments and plant settling
3. To prevent any vibration getting transferred to the duct from the rotating / vibrating equipments

Technical Specification:

 
At Alta Vista, various factors like Temperature, Pressure, Nature of Medium, Direction of flow, External Ambient temperature, Thermal movements / Vibration values, Dust concentration and other specific inputs are analysed and appropriate Non Metallic Flexible Expansion Joint are designed to suit all the above parameters. We have developed multilayer fabric flexible expansion joint specially designed to meet the requirements of the applications.
At alta vista we are specialized in Mild steel, stainless steel, Hardox and spring steel fabrication and have sucessfully carried out fabrication of structural items, machinery and other process equipments. Some of the products we have fabricated are Dampers, Metallic Expansion Joints, Cement silos, Immersion tubes, Classifiers, Cooler Casings, Batching plant housing, Bag Filter and ESP casings, Kiln Hoods, Grizzley bar assembly, Fly ash handling assembly, etc.,

Non Metallic Flexible Expansion Joint are supplied depending on the requirement as follows.

1. Complete Unit with Matching Flanges
2. Complete unit as welded ends
3. Only Fabric Portion (to be installed at site)
4. In Split condition (For large sizes)

We design the flow liners (Sleeves) for Non Metallic Flexible Expansion Joint in such a way that the cross section of the ducts is not reduced but the dust ingress into the fabric is minimized. The type of sleeves and the MOC is designed according to the dust concentration present in the medium.