Extruded Fin Tube

Extruded fin tube is rolled as an integrity with no thermal contact resistance, high intensity, featured in thermal shock and mechanical shock resistance. Heat exchangers assembled with this kind of fin tube (extruded fin type) is much better than the one equipped with string fin tubes or hectically wound fin tubes (L/LL/KL type fin).

Extruded Finned Tubes, also known as “Integral Finned Tubes”. Integral finned tubes are manufactured by rolling process on tubes. During finning operation, the inside diameter of the tubes is reduced and helical fins are rolled on the tube wall. The tubes material can be Copper Alloy, Brass Alloys, Copper Nickel Alloy, Titanium Alloy, Paslanmaz Çelik, Duplex Stainless Steel etc. The pressure required to extrude fins from the aluminum sleeve creates an excellent “pressure bond” between the two materials.

Copper and aluminum com-posited fin tubes are rolled from a muff copper tube, advantaged in tight link, small thermal resistance, good heat transfer efficiency, small flow loss and strong corrosion resistance. When working in long time under heating and cooling conditions, they are durable and not easy to deform.

The integral extruded fin tubes is smooth on surface and easy to clean. When wet cooling in heating and air conditioning project, it is easy to remove the condensation water on the outer surface of the fin, and it is not easy to dust and scale in the heating and other heat exchange.

Kategori: Ekstrüde / Kaynaklı Fin Borusu

Tarif
Ürün Detayları
Soruşturma

Extruded Finned Tubes Product Range

Integral Low Finned Tubes

These have fin height less than or equal to fin pitch.
Tube Length: E kadar 32 meter.
Outside Diameter OD: Between 9.52 mm and 38.10 Mm.
Tube Wall Thickness WT: 0.58 Mm (min) and above.
Fins per Inch: 11, 16, 19, 23, 26, 30, 40 ve 52 FPI.
Available in ferrous and nonferrous materials Copper Alloys, Copper-Nickel alloy, Admiralty Brass Alloy C44300, Aluminum Brass Alloy C68700, Carbon Steel.

Integral Medium High Finned Tubes

Fin height more than fin pitch.
Tube Length: E kadar 32 meter.
Dış çap: Between 19.05 mm and 31.75 Mm.
Tube wall thickness: 2.1 Mm (min) and above.
Fins per Inch: 11, 16 ve 19 FPI.
Available in ferrous and nonferrous materials.

Low Finned U Bend Tubes

Manufactured on in-house finned tube bending facility.
Easy to install in the equipment maintaining the circulation ratio.
Absorb thermal shocks in heat exchanger.
Available in Copper Alloys, Copper-Nickel alloy, Admiralty Brass Alloy C44300, Aluminum Brass Alloy C68700, Carbon Steel, 304 and 304L Stainless Steel ranging from 30R to 710R.

Low finned tubes with internal rib

Externally enhanced surface area with integrally helical ribs on the inner side.
Improved inside heat transfer coefficient.
Available in Copper, Copper Nickel Alloy, Carbon Steel with externally 19, 26 fins per inch and internally 8, 10 Ribs.

Low Finned Tubes Coils

Manufactured by coiling the integral finned tube.
Improved heat transfer area therefore compact size of heat exchangers.
Available in Copper, in coil diameters as per user’s requirement (Min Coil ID 50 Mm).

High Finned Tubes

High Finned Tubes have extruded fin heights up to 0.625″ (16Mm). Single metal and bi-metallic finned tubes are available. Bi-metal finned tubes have a separate alloy liner tube inside the extruded fins. The mono-metal finned tubes have no liner tube with the fins integral with the tube.

Corrugated Tubes

Manufactured by corrugation process of indenting plain tube with smooth and uniform spiral projections, which generate turbulence in both outside and inside media.
Higher turbulence ensures uniform temperature distribution.
No thinning of tube wall during process of corrugation.

Extruded Finned Tubes Characteristics

Heat transfer per meter of tube on the outside is equal to the heat transfer per meter on the inside.
The intermediate un-finned section and un-finned sections at both ends help to slip the integral finned tubes in to the tube-sheets of shell and tube heat exchanger in a manner similar to plain tubes.

Extruded Finned Tubes Benefits

Combination of lower fin height and more fins per meter maintains the general ratio of 1:1 fin height to fin spacing.
Doesn’t require higher tube pitch therefore, doesn’t require shell size higher than shell of bare tube heat exchanger.
Improved heat transfer coefficient and rate of heat transfer as compared to conventional finned tube designs.
Compact design of heat exchanger having lesser weight and size.
Improved tube life.

Extruded Finned Tubes Quality Assurance

Compliance with quality standards, ASME SB111, SB-359, SA-213, SA-450 and all codes as per ASME /EN/ JS.
Customer / Third Party Inspection TPI.
Fin dimensions checking by IMTEs and Profile checking on profile projector.
Stress Relief Annealing of non-ferrous fin tube on in-house electric conveyor belt furnace.
Stress relief annealing of ferrous fin tubes as per specifications provided if required by client at additional cost.
100% tubes tested for leakages by Hydrostatic Test as per standard and customers requirements.
Third Party Inspection can be offered from Lloyd’s, BV, TÜV, BHEL, NTPC, Intertek, SGK, EIL, IBR etc. müşteri ihtiyacına göre.

Extruded Finned Tubes Applications

HVAC & Kazan
Santral
Heat Recovery Steam Generators
Petrochemical Industries
Marine Applications
Refrigeration Applications
Economizers
Oil and Gas Coolers
Plumbing and Air Conditioning
Condensers and Evaporators
Shell and Tube Heat Exchanger
Other various Heat exchanger applications

Fin borusu referansı

Karbon çelik kanatçıklar karbon üzerinde mevcuttur, paslanmaz çelik, veya bakır boru. Listelenmemişse lütfen belirli bir boyut için arayın

Tür	Tarif	Taban tüpü Ö.D. (Mm)	Fin özellikleri (Mm)
Tür	Tarif	Taban tüpü Ö.D. (Mm)	Yüzgeç aralığı	Fin yüksekliği	Yüzgeç kalın
Katıştırılmış	G-tipi kanat tueb	16-63	2.1-5	<17	~0,4
Ekstrüde	Tek metal kombine metal	8-51	1.6-10	<17	0.2-0.4
	Düşük kanatlı tüp t-tipi kanatçık tüp	10-38	0.6-2	<1.6	~0,3
	Bambu tüp oluklu boru	16-51	8-30	<2.5	/
Yara	l/kl/ll tipi kanatçık tüpü	16-63	2.1-5	<17	~0,4
Dizgi	Dize yüzgeci tüpü	25-38	2.1-3.5	<20	0.2-0.5
U-tipi	U-tipi tüp	16-38	/	/	/
Kaynak	HF kaynak kanatçık borusu	16-219	3-25	5-30	0.8-3
	H / HH tipi kanatçık tüpü	25-63	8-30	<200	1.5-3.5
	Saplanmış yüzgeç tüpü	25-219	8-30	5-35	φ5-20

Kullanıcı ihtiyaçlarına göre, çelik şerit sargı kanatlı boru ve çelik alüminyum kompozit kanatlı boru her türlü üretebiliriz.

Malzeme

Karbon çelik kanatçıklar karbon üzerinde mevcuttur, paslanmaz çelik, veya bakır boru. Listelenmemişse lütfen belirli bir boyut için arayın

Size geniş bir malzeme portföyü sunuyoruz ve termal iletkenlikle ilgili özel ihtiyaçlarınızı karşılamak için teklifimizi istediğiniz zaman genişletebiliriz., mekanik özellikler, veya korozyon direnci.

Taban tüpü: Karbon çeliği, Paslanmaz çelik, Bakır, Cupro Nikel, Alüminyum, Alaşımlı Çelik
Yüzgeç: Karbon çeliği, Paslanmaz çelik, Bakır, Alüminyum
Yüzük: Karbon çeliği, Alüminyum, Sıcak daldırma galvanizleme

Extruded Fin Tube