DELLOK CS Studded Tube 25-273mm OD with Automated Resistance Welding for Petrochemical Heat Transfer
Price:
$50 - 5000 /Piece/Pieces
MOQ:
1 piece
Delivery Time:
1-3 weeks
Brand:
Dellok Yonghui
Product Description
Manufacturing Excellence
DELLOK (YONGHUI RADIATING PIPE MANUFACTURING CO.,LTD.) has been a trusted manufacturer since 2002, operating from Jiangsu, China. With over 200 employees and 33 technical staff, we maintain comprehensive quality control throughout our manufacturing processes.
Studded Tube Technology
Our studded tubes feature steel studs automatically resistance-welded to the tube, producing high-quality forge welds. This advanced welding process enables the combination of any grades for studs and tube, including carbon, alloy, stainless steels, and high nickel alloys.
Manufacturing Process
Steel studs are precision-welded onto base tubes using automated electric resistance welding machines. Our process accommodates cylindrical, elliptical, or lens-type stud configurations with consistent quality control.
Key Advantages
• Superior connection surface with minimal heat loss
• Welding connection rate exceeding 90%
• No welding power required with minimal welding tumor formation
• Narrow heated zone preserves base tube tissue integrity
• Automated welding parameters ensure consistent bulk production quality
Performance Properties
• Compact design with space-efficient footprint
• Exceptional durability in harsh operating environments
Industrial Applications
Studded tubes are extensively used in heat recovery applications across petrochemical plants, oil & gas facilities, and chemical processing operations. They perform reliably in convection ovens and extreme temperature environments where corrosive elements like sulfuric acid may be present.
Technical Specifications
| Parameter | Metric Range | Imperial Range |
|---|---|---|
| Tube Outer Diameter | 25-273 mm | 1"-10" NPS |
| Tube Wall Thickness | 3.5-28.6 mm | 0.14"-1.1" |
| Tube Length | ≤25,000 mm | ≤82 ft |
| Stud Thickness | 6-25.4 mm | 0.23"-1" |
| Stud Height | 10-35 mm | 0.4"-1.38" |
| Stud Pitch | 8-30 mm | 0.3"-1.2" |
Material Combinations
Stud 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)
Heat Transfer Applications
Studded tubes serve as superior alternatives to finned tubes for heat transfer in petrochemical applications, particularly in fired heaters and boilers where surfaces face corrosive environments and require frequent cleaning due to dirty soot formation.
Advanced Fabrication Process
Our PLC-controlled electric resistance welding machines utilize stepping motors and indexing brake motors to ensure precision. All welding parameters—including stud count, pitch, and compensation coefficients—are programmed via human-machine interface (HMI) to guarantee product quality according to process requirements.
Industrial Implementation
DELLOK studded tubes are typically installed in convection sections and boilers where surfaces are exposed to severe operating conditions involving dirty flue gas.
Similar Products
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