Seamless Fin Tube

A fin tube is a tube that has small fins around the outside surface.

These fins act as a filter and a mechanism to transfer heat from the material inside the tube to the outside space or vice versa. Fin tubes are used in applications that require a transfer of heat from a hot fluid to a colder fluid through the tube’s wall.

Grand provide a wide range of fin tubes(carbon, stainless,copper,aluminium,titanium,Dll;) are used in heat exchangers (air, water and chemically cooled)for various industries such as petroleum, Petrokimia, steel, power generation and many more.

Keterangan
Detailed information
Why use finned tubes?
Siasatan

Rujukan tiub sirip

Sirip keluli karbon boleh didapati dengan karbon, keluli tahan karat, atau tiub tembaga. Sila hubungi saiz tertentu jika tidak disenaraikan

Jenis	Keterangan	Tiub asas O.D. (Mm)	Spesifikasi sirip (Mm)
Jenis	Keterangan	Tiub asas O.D. (Mm)	Padang sirip	Tinggi sirip	Sirip tebal
Tertanam	G-type fin tueb	16-63	2.1-5	<17	~0.4
Tersemperit	Logam gabungan logam tunggal	8-51	1.6-10	<17	0.2-0.4
	Tiub sirip rendah tiub sirip jenis t	10-38	0.6-2	<1.6	~0.3
	Tiub beralun tiub buluh	16-51	8-30	<2.5	/
Luka	L/KL/LL taip tiub sirip	16-63	2.1-5	<17	~0.4
Rentetan	Tiub sirip rentetan	25-38	2.1-3.5	<20	0.2-0.5
Jenis U	Tiub jenis U	16-38	/	/	/
Kimpalan	Tiub sirip kimpalan HF	16-219	3-25	5-30	0.8-3
	Tiub sirip jenis H/HH	25-63	8-30	<200	1.5-3.5
	Tiub sirip yang disemat	25-219	8-30	5-35	φ5-20

Mengikut keperluan pengguna, kita boleh menghasilkan semua jenis tiub halus penggulungan jalur keluli dan tiub finned komposit aluminium keluli.

Bahan

Sirip keluli karbon boleh didapati dengan karbon, keluli tahan karat, atau tiub tembaga. Sila hubungi saiz tertentu jika tidak disenaraikan

Kami menawarkan portfolio bahan yang luas dan boleh mengembangkan tawaran kami pada bila-bila masa untuk memenuhi keperluan khusus anda mengenai kekonduksian terma, Sifat mekanikal, atau rintangan kakisan.

Tiub asas: Keluli karbon, Keluli tahan karat, Tembaga, Nikel Cupro, Aluminium, aloi keluli
Fin: Keluli karbon, Keluli tahan karat, Tembaga, Aluminium
Cincin: Keluli karbon, Aluminium, Galvanizing panas

Why use finned tubes?

Finned tubes are used in applications involving the transfer of heat from a hot fluid to a colder fluid through a tube wall. The rate at which such heat transfer can occur depends on three factors: (1) the temperature difference between the two fluids; (2) the heat transfer coefficient between each of the fluids and the tube wall; Dan (3) the surface area to which each fluid is exposed. In the case of a bare (unfinned) tubes, where the outside surface area is not significantly greater than the inside surface area, the fluid with the lowest heat transfer coefficient will dictate the overall heat transfer rate. When the heat transfer coefficient of the fluid inside the tube is several times larger than that of fluid outside the tube (for example steam inside and oil outside), the overall heat transfer rate can be greatly improved by increasing the outside surface of the tube. In mathematical terms, the product of heat transfer coefficient for the outside fluid multiplied by the outside surface area is made to more closely match the product of the inside fluid heat transfer coefficient multiplied by the inside surface area.

So the whole concept of finned tubes is to increase the outside surface area of the tube. As an example, a finned tube configuration of 2” (nominal, 2.375” actual) pipe with a ¾” high welded helical solid fin of 12 gauge thickness with 6 fins per inch has an outside surface area of 8.23 sq. ft. per linear foot; whereas the same bare pipe has an outside surface area of only .62 sq. ft. per linear foot. That is a 13X increase in outside surface area. See Design Information for extensive tables of surface areas and fin weights.

“The whole concept of finned tubes is to increase the outside surface area of the tube.”

“In many cases, one finned tube replaces six or more bare tubes at less than 1/3 the cost and 1/4 the volume.”

By increasing the outside surface area of the tube, the overall heat transfer rate is increased, thereby reducing the total number of tubes required for a given application. This reduces the overall equipment size and the cost of the project. In many cases, one finned tube replaces six or more bare tubes at less than 1/3 the cost and ¼ the volume.

Seamless Fin Tube