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These NMEJs can be manufactured (against order) in all the necessary shapes and forms according to customer requirement viz. round, rectangular, square, oval, conical or combinations in different configurations shown below.
All fabric can be supplied as fabric part only or pre-assembled on steel parts for quick installation in the duct system.
This variety includes a range of single layer expansion joints, consisting of specially developed materials, which cover a temperature range of -65°C to +200°C.
This series include a range of multi-layer expansion joints, covering most operating conditions in air or gas duct systems. The individual type of expansion joint is chosen on the basis of chemical composition of the medium, maximum operating temperature etc. KELD Flexfab series can be supplied with or without a membrane - which is impervious and resistant to chemicals. Similarly the type of outer cover can also be varied depending upon the operating and customer requirement.
This series includes a range of products developed exclusively for the cement industry. The special feature of this series is its outer cover, which provides mechanical protection to the fabric expansion joint.
This series are generally used only when the application temperature is very high (beyond 750°C) or the application demands a special pre-formed fabric expansion joints.
KELD has also specialized in the following applications for expansion joints:
- Diesel Generator exhaust ducts
- Babcock coal mills
- Chimney seals for multi flue chimneys
- Pipe penetration joints in HRSG
- Reformer tube expansion joints
- Repair of damaged metallic expansion joints.
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