DELLOK Copper Integral Low Fin Tube For Refrigeration Industries

DELLOK Copper Integral Low Fin Tube For Refrigeration Industries

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

Manufacturing Process

^{The fins are rolled out from the wall of the tubes and hence are integral with the tube. As the fins are formed from the base tube by rolling out material from its wall, the wall thickness under the finned section is reduced compared to the wall thickness at plain ends. These fin tubes can be manufactured from most tubular materials and the hardness of the material usually determines the finning code or fin profile. The harder materials such as Nickel Alloys, Stainless Steel, Titanium are supplied with higher density (i.e. 26, 28, 30 FPI). This shallow profile reduces the work hardening of the material and helps to eliminate the possibility of root fin cracking.}

^{Whereas, softer materials like Carbon Steel, Copper, and Copper Alloys are supplied with deeper profile giving a lower fin density (i.e. 16 or 19 FPI). These tubes can also be supplied with intermediate plain landing as well as U bent, where U bend portion can be finned or un-finned.}

Production Capacity

Total four (4) finning lines, monthly production capacity is 80,000 meters in total.

^Properties

^{Manufacturing Process:- Cold Rolling of Fin on the Base tube Itself.
Fin To Tube Bond:- NA (fin is made from the base tube itself)
Heat Transfer Efficiency:- Good
Mechanical Resistance: – Good
Corrosion Protection: – Moderate
Temperature Range:- Up to Maximum 415 Deg C}

Integral Low Fin Tube Specifications:

^FAQ

^{1. What is the fin efficiency?}

^{Fin efficiency is defined as the ratio of actual heat flow of the fin to that which would be obtained with a fin of constant temperature uniformly equal to the base surface temperature, that is, one with infinite thermal conductivity.}

^{2. What are low finned tubes?}

^{Low Finned tube is a finned tube obtained through plastic cold deformation. The method consists in realizing, from a smooth tube, fins with a particular geometric form without removing material; this plastic deformation causes an increment of heat exchange efficiency, and allows to reduce the heat exchanger size.}

^{3. How are low fin tubes made?}

^{Low finned tubes involve rotational processing of the outer surface of steel tubes to create a fin shape. A steel pipe length of 25.4 mm (1 inch) per fin and 19 fins is a design often used. We can also produce units with 26 fins.}