Dellok Yonghui Radiating Pipe Manufacturing Co.,Ltd.
                                                                                                           
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24 Years
Since 2002
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DELLOK High Frequency Welded Brown Fintube 16-273mm OD with 5-25mm Fin Height for Industrial Heat Exchangers

Price Negotiable
Price: $50 - 500 /Piece/Pieces
MOQ: 1 piece
Delivery Time: 1-3 weeks
Brand: Dellok Yonghui
Product Description
DELLOK High Frequency Welded Brown Fintube
Professional longitudinal finned tubes manufactured using advanced high frequency resistance welding technology for superior heat transfer efficiency in industrial applications.
Manufacturing Process
Our longitudinal finned tubes are produced by resistance welding fins in the longitudinal direction along the tube length. The fin strip is first formed into U-shaped channels, with each leg forming a fin. These channels are precisely cut and oriented along the tube length, then resistance welded in diametrically opposed pairs.
Longitudinal Finned Tube manufacturing process diagram
For any given tube size, the desired heat transfer surface area per unit length can be achieved by specifying appropriate fin height and quantity. Larger diameter tubes accommodate more fins for enhanced performance.
Key Advantages
  • Extended service life compared to ordinary helical fin tubes
  • Enhanced safety and energy efficiency
  • Improved heat transfer rates for viscous liquids
  • Perforated fin options available for effective liquid drainage
  • Ideal for horizontal heat exchanger applications
Welded steel pipe finned tube application
Performance Benefits
  • Significantly improves heat transfer efficiency in compact spaces
  • Reduces required installation space for heat transfer surfaces
  • Lowers equipment costs while maintaining high operational reliability
  • Minimizes tube-side pressure drop and reduces operating costs
  • Enhances tube stiffness and seismic performance
  • Optimizes heat transfer while reducing flow resistance and metal consumption
Technical Specifications
Parameter Metric Range Imperial Range
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)
Carbon steel welded pipe finned tube
Industrial Applications
Longitudinal finned tubes are extensively used in petrochemical industries, particularly suited for high temperature, high pressure applications with elevated fin-side temperatures.
Brown fin tube industrial application
Why Choose DELLOK
Quality Assurance
Each product is manufactured according to customer specifications, meeting or exceeding applicable codes and standards. Comprehensive inspection and documentation ensure full compliance.
Customer Service
We adapt to your specific requirements, whether processing customer-supplied materials or providing complete turnkey solutions.
Operational Efficiency
24/7 manufacturing capability with rapid quote response system. Emergency contact support available for all pre-sales and after-sales requirements.

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 Brian Wanqian

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