Murphy Thermal Energy Co., Ltd.
Brand: Murphy
Applicable Industry: Garment Shops, Retail, Food Shop, Printing Shops, Building Material Shops, Construction Works, Machinery Repair Shops, Energy &Amp; Mining, Manufacturing Plant, Food &Amp; Beverage Shops, Food &Amp; Beverage Factory, Farms, Restaurant, Home Use
Out-of-warranty Service: Video Technical Support, Online Support, Spare Parts
Where To Provide Local Services (in Which Countries Are There Overseas Service Outlets): Philippines, Viet Nam, Pakistan
Showroom Location (in Which Countries Are There Sample Rooms Overseas): Pakistan, Philippines, Viet Nam
Video Factory Inspection: Provided
Mechanical Test Report: Provided
Marketing Type: Ordinary Product
Place Of Origin: China
Species: Heating Tube
Use: Heater Parts
Certification: Ce
Warranty Period: 1 Year
Service System: Free Spare Parts, Video Technical Support, Online Support
Packaging: Wooden Case
Productivity: 10000 Pieces Monthly
Transportation: Ocean,Land,Air,Express
Place of Origin: China
Supply Ability: 10000 Piece Monthly
Certificate: ISO9001
HS Code: 8402900000
Port: Shanghai Port,Ningbo Port,Qingdao Port
Payment Type: L/C,T/T,D/P,D/A,Paypal,Money Gram,Western Union
Incoterm: FOB,CFR,CIF,EXW,FAS,FCA,CPT,CIP,DEQ,DDP,DDU,Express Delivery,DAF,DES
Because of their relative easy of cleaning, studded tubes or nail head pipes are used in furnaces and fired heaters as an alternative to high frequency welded finned tubes wherever the process application is such that heavy fouling of the external surface may occur.
The studs are attached to the pipe in diametrically opposing pairs around the circumference by electrical resistance welding to ensure a high integrity bond for strength and heat flow. Stud diameter, height and pitch can be specified on an individual basis.
Welding tests are carried out as a matter of course to ensure the effectiveness of the stud to pipe bond. Heat treatment of the completed Studded Tube is carried out where necessary. Should fouling eventually reduce the process performance of the equipment, the studded surface can be cleaned efficiently by shot blasting without damage to the materials.
An electric current is applied by connect on the stud and tube and theresistance in this circuit produces the heat necessary for welding. Maximum resistance and therefore maximum heating occurs at the interface between the Stud and the tube. Pressure to forge the Stud and the tube together at the point of maximum heating is applied by various forms of tooling. These resistance welding processes produce a strong metallurgical bond between the stud and the tube while minimizing the heat affected zone (HAZ) in the tube. The use of pressure to forge the fin and the tube together helps to minimize the heat input necessary to make the weld. This Product is used in Fired Heaters under Very High Pressure & Temperature mainly in Petroleum refineries.
Studded Tube(Stainless Steel Welded Tube) Manufacturing Process:
Studs are fully automatically welded onto the tubes (pipes) by resistance welding.
Studded Tube(Welded Stainless Tube) Advantages:
To increase the surface area of the tube and to protect tube surface from direct exposure to heat /corrosive environment.
Studding reduces the amount of bare pipes used in these processes. Heat transfer surface of one studded pipe is equivalent to surface of 4 to 10 bare pipes.
Use of studded tubes is ideal for processes/applications, where dirty fuels are used in harsh environments.
Studded Tube(Black Welded Pipe) Properties:
Wear proof design
High heat transferring capacity
Studded Tube(Weld Galvanized Pipe) Applications：
Boiler,Super heater, Gas furnace burner, heat exchange equipment ,chemical equipment,heat recovery of the petrochemical industry, in areas of convection ovens, vacuum generators for chemical processing, etc.Boiler stud tube,Super heater stud tube, Gas furnace burner stud tube.
Studded Tube(Fin Tube) Specifications：
| Product Specification | ||
| Tube OD | 25~273 (mm) | 1”~10” (NPS) |
| Tube Wall Thk | 3.5~28.6 (mm) | 0.14”~1.1” |
| Tube Length | ≤25,000 (mm) | ≤82 ft |
| Stud Thk | 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” |
| Stud Type | Cylindrical, Elliptical, Lens type | |
| Stud to tube surface angle | Vertical or Angular | |
| Material Combinations | ||
| Stud Material | C.S. (most common grade: Q235B) | |
| S.S. (most common grade are AISI 304, 316, 409, 410, 321,347) | ||
| A.S. | ||
| Tube Material | C.S. (most common grade: A106 Gr.B) | |
| S.S. (most common grade are TP304,316, 321, 347) | ||
| A.S. (most common grade are T/P5,9,11,22,91) | ||
| Type of Service | High temperature | |
Product Categories : Studded Tube
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