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L LL KL KLM footed cooling spiral fin tube for heat exchange

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    L LL KL KLM footed cooling spiral fin tube for heat exchange

    Material combinations

    Core tube: carbon steel / low-alloy steels / stainless steel / brass / copper / cooper-nickel alloys / aluminum bronze / nickel alloys / titanium etc...

    Fins: aluminum /copper


    Manufacturing process: The manufacturing fin strip is folded into an ‘L’ shape and wound on to the base tube surface under tension. The feet of the fins are joined together and cover the finned surface.

    1) ‘L’ Type finned tube (L-Wound fin tubes)

    Fins made by wrapping base tube with fin strip. Maximum operating temperature: 150°C.

    2) ‘LL’ Type finned tube (LL-Wound fin tubes)

    Fins made by wrapping base tube with fin strip, as in the case of type ‘L’, but in a way that guarantees better corrosion resistance. Maximum operating temperature: 170°C

    3) ‘KL’ Type finned tube (Knurled fin tubes)

    The base tube outer surface is additionally knurled before wrapped the ‘L’ shaped fin strip, which ensures better contact. After wrapped the fin strip, the fin foot is also knurled on the base tube to increase the bonding between tube and fin. For this reason, this type of fin construction ensures better heat transfer characteristics than in the case of type‘ L ’and ‘LL’. Maximum operating temperature:250°C


    Advantages: This method of manufacturing enables us to place the finning on a very thin-walled tube with is particularly desirable when using high value alloys (titanium, stainless, copper, nickel).The tube can withstand a temperature of up to 150°C without the risk of atmospheric corrosion or thermal stress.


    Quality L LL KL KLM footed cooling spiral fin tube for heat exchange for sale
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