DELLOK Longitudinal Straight Seam Welded Finned Tube 16-273mm OD with 8-12x Heat Transfer Efficiency
Price:
$20 - 1000 /Piece/Pieces
MOQ:
1 piece
Delivery Time:
1-3 weeks
Brand:
Dellok Yonghui
Product Description
About DELLOK Finned Tubes
DELLOK (YONGHUI RADIATING PIPE MANUFACTURING CO.,LTD.), established in 2002 in Jiangsu, China, specializes in high-quality finned tube manufacturing. With 66 million yuan in fixed assets, over 200 employees, and 33 technical staff, we operate 47 fin tube production lines including an imported McElroy system, delivering annual capacity of 12 million meters.
Longitudinal Straight Seam Welded Finned Tube
Our longitudinal finned tubes feature precision resistance welding along the tube length. U-shaped channels form individual fins, with each pair welded at polar opposites, requiring fin counts in multiples of four for optimal performance.
Manufacturing Process
Longitudinal fin tubes are welded onto core plain tubes using advanced resistance welding technology or filler metal welding methods.
Performance Advantages
- Provides 8 to 12 times the heat transfer area of bare tubes
- Superior efficiency compared to standard bare tubes
- Enables more compact heat exchanger designs
- Cost-effective solution for industrial applications
- Optional "Cut & Twist" fins increase shell side turbulence
Technical Properties
- Enhanced heat transfer efficiency in limited space
- Reduced installation space requirements
- Lower equipment costs with high operational reliability
- Minimized pressure drop and reduced operating costs
- Improved structural stiffness and seismic performance
Industrial Applications
Our longitudinal finned tubes serve multiple industries including:
- Double pipe heat exchangers
- Multi-tube heat exchangers
- Fire rated heaters and gas coolers
- Tank heating systems
- Oil, power, chemical, and petrochemical facilities
Technical Specifications
| Parameter | Metric | Imperial |
|---|---|---|
| Tube Outer Diameter | 16-273 mm | 3/8"-10" NPS |
| Tube Wall Thickness | 2.11-25.4 mm | 0.08"-1" |
| Tube Length | ≤12,000 mm | ≤39 ft |
| Fin Thickness | 1.0-1.5 mm | 0.04"-0.06" |
| Fin Height | 5-25 mm | 0.2"-0.98" |
| Fin Pitch | 1U-36U | |
| Fin Type | "U" or "I/L" Configuration | |
Material Combinations
Fin Materials: Carbon Steel (Q235B), Stainless Steel (AISI 304, 316, 409, 410, 321, 347), Alloy Steel
Tube Materials: Carbon Steel (A106 Gr.B), Stainless Steel (TP304, 316, 321, 347), Alloy Steel (T/P5,9,11,22,91)
Frequently Asked Questions
Are you a trading company or manufacturer?
We are a manufacturing factory and accept OEM orders. Factory visits are welcome to inspect our products and processes.
Can I request samples?
Yes, sample orders are available for quality testing. Mixed samples across different specifications are also accommodated.
What is your production lead time?
Samples: 1-3 days | Mass production: 15-30 days (depending on order requirements)
What warranty do you provide?
We offer a comprehensive one-year warranty on all products.
What payment terms do you accept?
Trade assurance, TT (Telegraphic Transfer), Western Union
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Dellok Yonghui Radiating Pipe Manufacturing Co.,Ltd.
Location
No.18 Tianyue Road,Yanzhou,Jiangsu China
Contact Person
Peter Cheng