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Integral Low Finned Tubes Type For Maximum Heat Transfer Performance |
Product Specification |
Tube Outside Diameter: |
12.7 to 31.75 (mm) |
1/4" to 1 1/4" (NPS) |
Tube Wall Thickness: |
1.65 to 3.0 (mm) |
0.065" to 0.118" |
Tube Length: |
max 18500 (mm) |
max 60.7 ft |
Fin Thickness: |
0.3 to 0.5 (mm) |
0.0118" to 0.0197" |
Fin Height: |
0.9 to 1.3 (mm) |
0.0354" to 0.0512" |
Fin Pitch: |
666 to 1111 FPM |
16 to 30 FPI |
Fin Type: |
Integral Low |
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Material |
Tube Material: |
C.S., S.S., A.S., Copper, Titanium |
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This table is used as a general guide to our capabilities, please call us for any other customized cases. |
Fabrication 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. |
Codes and Standards |
- As per drawings and client's requirements |
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15 years experiences in manufacturing and supply of Extended Surface Tubes for the petrochemical, power generating and thermal industries. |
We offer accepted products and efficient solutions centered on meeting and exceeding quality codes and standards. We provide competitive market price, short lead time and special customizing relied on a high level of communications and trust. |
Our Quality |
Our quality awareness stems from the roots of our being. Each product is produced as per customer specifications meeting or exceeding applicable codes and standards. Each product is inspected and related documents are maintained to ensure the compliance. Additional testing and Third Party Inspection Agency can be offered if required by customer for further assurance. We are always concentrated on improving the effectiveness of our Quality Management Systems. |
Our Service |
Our service means getting the job done the way customer want it done. We always have the customer in our mind at all times. We realize that the customers' needs are different and we have the ability to satisfy those needs. Whether processing on customer-supplied materials or supplying a job completely turnkey, you can always count on us. |
Our Efficiency |
We can work 24/7 to meet your needs. Our proprietary online quote system enables us to rapidly prepare the quotes and reply to you. Our shops can operate 24 hours a day by shifts to satisfy your urgent delivery time. We can also maintain emergency contacts anytime you need, no matter pre-sales or after-sales. |
Our Package |
Each package is designed and made according to seaworthy packing standard and clients' handling and lifting capability.
Finned tubes will be packed into steel frameworks and wrapped with weather proof PE film and plywood board covering up. In addition, each row of finned tubes will be isolated from adjacent with plywood bar to prevent rigid impact during transportation. For all exporting packages, we only use plywood instead of wood for fumigation free purpose. |
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