DELLOK Aluminum Fin Rolled Exchanger Heat Finned Tube

DELLOK Aluminum Fin Rolled Exchanger Heat Finned Tube

About us

DELLOK (YONGHUI RADIATING PIPE MANUFACTURING CO.,LTD.) was established in 2002, which is located in Jiangsu, China. After many years of development, the company now has 66 million yuan in fixed assets, more than 200 employees, and 33 technical staffs. We have 4 aluminum processing production lines, with the annual processing capacity of more than 20,000 tons; And we have 5 tube-drawing production lines; 47 fintube production lines, 1 imported production line from American with the brand of McElroy , with the annual production capacity of 12 million meters the above. Quality is the theme of eternal pursuit of winner -Production workshop- Meticulous works, standardized management system and systematic quality assurance are Dellok(YONGHUI)'s best commitment to quality. In Dellok(YONGHUI), the quality control is not only the detection of the final process, but throughout the entire production process. We implement a set of quality control and assurance systems. Each batch of pipes is sampled and tested, and records are kept as a quality guarantee for the final product.

Product Description:

^{Bimetallic Extruded Fin Tube, use base tube insert Aluminium tube, directly extruded the Aluminium into wanted fin specification. Fin and tube surface are tight touch thus improving the heat transfer efficiency. This also give considerable corrosion protection to the base tube.}

^{Manufacturing Process:}

^{The Extruded Fin Tubes are produced by compressing an aluminum tube, or sleeve, onto the base tube. The bloom is exposed to very high pressures which essentially "grows" the fins into the final fin profiles.This process manufacture an excellent strong joint with great resistance (fin stiffness) as well as exceptional heat transfer capabilities (longevity, temperature range). The advantage of extruded fin tubes are full protection of bare tube against corrosion and fin has high mechanical strength. Extruded finned tubes provide the most stable performance over time as compared to the other fin types. The fin is rolled from an outer aluminum tube by a process using pressure to create a rolled "pressure bond" between the liner tube and fins. The aluminum fin material completely encloses the tube, except at the ends where a tube coating can be applied.}

^{Extruded Fin Tubes Advantages:}

^{1) Thermal}

^{The bonding of the outer and inner tubes removes the risk of loss of contact with the aluminium due to thermal stress.}

^{Maximum operating temperature: 250°C. The transfer coeffcient remains steady. Additionally as the outer sleeve is continuous no electrolytic couple is created.}

^{2) Mechanical}

^{The fins are more rigid and stand the handling shocks better,compared to types "G" an "L".}

Properties:

Manufacturing Process:- Cold Extrusion

Fin To Tube Bond:- Excellent

Heat Transfer Efficiency:- Excellent

Mechanical Resistance:- Excellent (Hence can be frequently cleaned with high pressure jets unlike other fin tubes. Thereby reducing down time and increasing overall life)

Corrosion Protection:- Gives excellent corrosion protection to the base tube since it entirely covers the base tube (except bare ends).

Temperature Range:- Upto Maximum 300 Deg C

Applications:

^{the petroleum, chemical and petrochemical industries}

^{natural gas treatment}

^{the steel industry: blast furnace and converter cooling systems}

^{power generation: steam turbine exhaust condensing}

^{– contact condensing with cooling of circulating condensate}

^{– fossil and nuclear power plants}

^{air conditioning (freon, ammonia, propane)}

^{incineration of household refuse}

^{compressor coolers, ect.}

Specifications: