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| Spiral Fin Tubes |
- Continuous type spiral fin tubes with crimped fins gives 80 % high efficiency than bare tube .
- More over it is wound with tension which gives rigid grip.
- This is the most commonly used fin tubes for industrial purpose.
- Having low cost & high efficiency.
- Material of base tube is M.S./ S.S./Copper/Aluminum /brass etc.
- Commonly used fin material is M.S./S.S./Copper/Aluminum etc.
- Common bare tube size is 3/8” to 4” size.
- Fins per inch will be from 6 to 9.
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