Non Metallic Expansion Joint (Bellow) is a type of flexible joint used in pipes / duct lines to accommodate thermal expansion, contraction, vibration & movements. Unlike Metallic Expansion Joints, which use metal materials like stainless steel, Non Metallic Expansion Joints are made from non-metallic materials such as high heat absorbent Fabric Layers. These materials provide flexibility and the ability to absorb movement but are often more light weight and cost-effective than their metallic counterparts. It’s made of both ends Metal Flanges and Fabric Belt made of different types of Fabrics layers fitted between both side flanges which is the main part of this Expansion Joint (Bellow).
# Role of Non Metallic Expansion Joint (Bellow) :
1. Accommodating movement due to thermal expansion, contraction and mechanical stress.
2. Absorbing vibration and shock loads from equipment or pressure surges.
3. Reducing noise and vibration transmission throughout the system.
4. Allowing system misalignment and reducing mechanical stresses.
5. Resisting chemical degradation and preventing corrosion in harsh environments.
6. Enhancing the system’s longevity by reducing wear and tear.
7. Providing flexibility for system design and easy adaptation to changes in layout.
8. Cost-effective solutions for systems requiring movement compensation.
9. Handling pressure fluctuations and accommodating flow variations.
10. Sealing connections, preventing leaks and ensuring product integrity.
We are leading Non Metallic Expansion Joint (Bellow) manufacturers for – Steel Plants, Cement Plants, Boiler Plants, Thermal Power Plants, Petro-Chemical Refineries, HVAC Systems, Environmental Systems, Chimneys, Water Pipelines, Refineries, Fertilizer units etc. up to the following capacity :
Rectangular shape : I.D. upto 5000 X 4000 mm.
Square shape : I.D. upto 4000 X 4000 mm.
Circular shape : I.D. upto 4000 mm.
Working Temperature : Upto 1200 Degree C
Working Pressure : Upto 2000 mm. Wc.
# Profiles used : There are 7 different profiles we used for Non Metallic Expansion Joints based on the working Temperature, Pressure & Movements.
# Non Metallic Expansion Joint (Bellow) manufacturing process :
1. Material Selection
2. Designing the Fabric Expansion Joint
3. Cutting the Fabric
4. Laminating or Sewing Layers
5. Incorporating Reinforcements (Optional)
6. Assembly of the Joint
7. Vulcanization or Heat Treatment (If Required)
8. Testing and Quality Control
9. Final Inspection and Packaging
10. Installation
# Optional accessories : Counter Flanges / Matching Flanges / Companion Flanges, Gaskets, Fasteners etc.
# Testing facilities : We provide Test Certificate of Fabrics, Metal parts etc. as per demand.
