| Home | About Us | Product | Know How | Contact Us |
| |
|
|
|
Longitudinal Finned Tubes For High temperature and Pessure Applications, |
| Product Specification |
| Tube Outside Diameter: |
12 to 273 (mm) |
3/8" to 10" (NPS) |
| Tube Wall Thickness: |
2.11 to 25.4 (mm) |
0.08" to V |
| Tube Length: |
max 12000 (mm) |
max 39 ft |
| Fin Thickness: |
1.0 to 1.5 (mm) |
0.04" to 0.06" |
| Fin Height: |
5 to 25 (mm) |
0.2" to 0.98" |
| Fin Quantity: |
1U to 36U |
1U to 36U |
| Fin Type: |
"U" |
|
| Material |
| Fin Material: |
C.S. (most common grade: Q235B) |
| S.S. (most common grade: AISI304, 316, 321, 347, 409, 410) |
| A.S. |
| Tube Material: |
C.S. (most common grade: SA106 Gr.B) |
| S.S. (most common grade: TP304, TP316, TP321, TP347) |
| A.S. (most common grade are T/P5, T/P9, T/P11, T/P22, T/P91) |
|
| This table is used as a general guide to our capabilities, please call us for any other customized cases. |
| Welding Process |
| Longitudinal Finned Tubes are produced by resistance welding fins in the longitudinal direction along the length of the tube. The fin strip is first formed into a U-shaped channel, such that each leg of the U will form a fin. The channels are cut to the appropriate length and then oriented along the length of the tube and resistance welded in place. The channels are welded in pairs, diametrically opposed - therefore the number of fins specified must always be a multiple of four. |
| For a given pipe or tube size, the desired heat transfer surface area per unit length of tube can be obtained by specifying the appropriate fin height and number of fins. The maximum number of fins is dependent upon the tube outside diameter - larger OD tube can accommodate a greater number of fins. |
| Codes and Standards |
| - As per drawings and client's requirements |
| Surface Treatment and Protection |
| Each tube except stainless material will be polished by polishing machine to near white condition before welding. After welding, the finned tubes will be coated for transportation and site storage purpose, normally the coat will provide a period of 3 months prevention, any other coating material for longer prevention is also available as per clients' requirements. |
|
| 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. |
|
| Home | About Us | Product | Know How | Contact Us |
