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Expansion joint
Telescopic Type Expansion Joint



Dresser Type Expansion Joint


KS D 3578 Specification


Bellows Type Expansion Joint



PRODUCT FEATURES
1. No water leaking
Unlike the existing telescopic pipe, there is no water leakage caused by rubber packing aging and loosening of compressing bolts. No issue after installation.
2. Excellent corrosion resistance
Since the bellows are made of stainless steel, no corrosion is generated at all and fresh water can be supplied.
3. Easy construction
Made of stainless steel with light weight and excellent corrosion resistance. Can be burial-built without a separate manhole.
4. Excellent earthquake resistance
An earthquake resistant design can absorb, without leakage, not only axial-direction elongation/shortening but also the displacement caused by ground subsidence.
5. High pressure-resisting capacity
The mountains of bellows, made by TIG welding and molding, can withstand high pressure and do not cause leakage issues.
6. It is economical
Designed to receive a large amount of expansion length, it is possible to reduce the number of installation points for Expansion Joint pipes, thereby reducing construction cost.