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Finned Tube with high efficiency heat exchange

As a heat exchange element, the finned tube works under high temperature flue gas conditions for a long time, such as boiler heat exchanger with finned tube using a harsh environment, high temperature and high pressure and in a corrosive atmosphere, which requires the finned tube should have high performance indicators.
Introduction
Technical Data
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Introduction
With an aim to increase the heat exchanging efficiency, It's usually to extend the surface area (or internal surface area) by adding fins onto a tube,  which,  through this manufacturing process,  would greatly improve and upgrade the heat transferring efficiency of heating tube, it's called Finned Tube or Fin Tubes.

♦ Welded finned tubes
♦ Extruded finned tubes
♦ Welded helical solid finned tubes
♦ Welded serrated finned tubes
♦ Welded helical serrated finned tubes
Technical Data

Items

 Code

Dimensions

Tolerances

Tube outside diameter

D1

Φ25~Φ219 mm

±0.2 mm

Fin outside diameter

D2

Φ37~Φ279 mm

±0.75 mm

Fin pitch

M

4~90 mm

±0.2 mm

Fin height

H

6~30 mm

±0.75 mm

Tube thickness

δ1

2~16 mm

±0.15 mm

Fin thickness

δ2

0.8~2.5 mm

±0.1 mm

Unfinned tube ends length

L1

customized

±1‰*L1 mm

Unfinned tube ends length

L2

customized

±1‰*L2 mm

Maximum tube length

L

0.5~25 m

±1‰*L mm



FAQ
1.Q: Are you a factory or trading company?
A: We are professional manufacturer, and our company also is a very professional a trade company for steel products.We can provide a wide range of steel products. 

2.Q:What do your factory do regarding quality control?
A: We have obtained ISO, CE and other certifications. From materials to products, we check every process to maintain good quality.

3.Q: Can I get samples before order ?
A: Yes, of course. Usually our samples are free. we can produce by your samples or technical drawings.

4.Q:How do you make our business long-term and good relationship?
A:We keep good quality and competitive price to ensure our customers benefit ; We respect every customer as our friend and we sincerely do business and make friends with them. No matter where they come from.

5.Q:what is your delivery time ?
A: Our delivery time is about one week, timing according to the number of customers.
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