DELLOK Carbon Steel Studded Tube 12-273mm OD for Petrochemical Heat Transfer Applications
Price:
$50 - 2000 /Piece/Pieces
MOQ:
1 Piece
Delivery Time:
1-3 weeks
Brand:
Dellok Yonghui
Product Description
Product Overview
DELLOK Petrochemical Industry Carbon Steel Studded Tubes are engineered for high-efficiency heat transfer in demanding industrial applications. These tubes feature welded studs that significantly increase surface area while providing exceptional durability in corrosive and high-temperature environments.
Manufacturer Profile
DELLOK (YONGHUI RADIATING PIPE MANUFACTURING CO.,LTD.), established in 2002 in Jiangsu, China, operates with 66 million yuan in fixed assets and employs over 200 staff including 33 technical specialists. The company maintains 47 finned tube production lines with an annual capacity exceeding 12 million meters, supported by comprehensive quality control systems throughout the manufacturing process.
Technical Specifications
| Parameter | Metric | Imperial |
|---|---|---|
| Tube Outer Diameter | 12-273 mm | 3/8"-10" (NPS) |
| Tube Wall Thickness | 2.11-25.4 mm | 0.08"-1" |
| Tube Length | ≤12000 mm | ≤39 ft |
| Fin Thickness | 1.0-1.5 mm | 0.04"-0.06" |
| Fin Height | 5-25 mm | 0.2"-0.98" |
| Fin Quantity | 1U-36U | 1U-36U |
Manufacturing Process
Studs are automatically welded to the base tube using electric resistance welding machines controlled by PLC programming. The system incorporates stepping motors, indexing brake motors, and human-machine interface (HMI) for precise control of welding parameters including stud count, pitch, and compensation coefficients.
Key Advantages
- Heat exchange efficiency equivalent to 2-3 times that of bare pipes
- High rigidity suitable for extreme temperature and pressure conditions
- Easier cleaning for applications with dirty flue gas from heavy oil, diesel, or residual oil combustion
- Increased film heat transfer coefficient of flue gas to furnace tube
- Reduced bare pipe usage (one studded pipe equals surface area of 4-10 bare pipes)
Applications
Studded tubes are primarily used in petrochemical industry applications including fired heaters, boilers, convection sections, and power stations where surfaces are exposed to corrosive environments and require frequent or aggressive cleaning.
Material Options
Available in carbon steels, low alloy steels, and stainless steel base tubes with cylindrical, elliptical, or lens-type stud configurations.
Technical FAQ
What is a Studded Tube?
Studded tubes are metal tubes with welded studs arranged in specific formations throughout the tube length. They are extensively used in boilers and refineries to increase surface area for enhanced heat transfer efficiency.
Why Use Studded Tubes?
These tubes provide superior heat transfer performance, easier maintenance in dirty operating conditions, and increased efficiency in heat recovery processes with direct flame hostile atmospheres.
High Frequency Welding Factors
The four critical parameters for optimal high frequency welding are electrical power, applied pressure, welding time, and cooling time. Parameter optimization depends on specific equipment, materials, and geometric factors.
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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
Brian Wanqian