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Gas Fired Steam Boiler Manifold Headers , Boiler Spares Horizontal High Low Pressure

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Address: No.1 Huangqi 1st Road, Lixiang Village, Yangshe Town, Zhangjiagang City

Contact name:Edwin

Zhangjiagang Dehai Boiler Co., Ltd

Gas Fired Steam Boiler Manifold Headers , Boiler Spares Horizontal High Low Pressure

Country/Region china
Categories Non-Metallic Mineral Deposit

Product Details

Stable Boiler Manifold Headers Boiler Spares For Gas Fired Steam Boiler
 
Professional Gas Fired Steam Boiler Spare Parts Boiler Header with liquid penetrant test

 

Steam Boiler Spare Parts Boiler Header Performance advantage


1. The key to the manufacture of the header is the welding of the end cap (or head).

2. When welding, most manufacturers use manual arc welding, because the weld is single-sided welding, the root quality is difficult to guarantee, and because of the huge of welding work, number of repairing times, the production cycle is long which cause the entire production process slow.

3. Our company adopt the advanced production technology, well-equipped instrument and sophisticated technology, and invented a submerged arc welding method during the header and cover welding.

4. The character is: In the submerged arc welding machine head threading mechanism fixed connection welding wire guide, along the wire guide head to set the wire guide hole, the wire lead head has a certain degree of curvature, welding the inner wall, the wire guide head extension Into the inside of the welding.

5. The welding method mainly solves the problem that the existing welding method of the boiler header and the end cap (or the head) has the advantages of low processing efficiency, waste of argon at the time of processing, need to open the groove, have many processes, high processing cost and unsatisfactory welding fabrication.

 

Boiler Manifold Headers Features

 

1. Headers form an important part of all types of boilers. Steam from the generating tubes is collected in headers which are therefore always under pressure. This pressure may vary from 300 psi to 2000 psi.

2. Since headers are always under pressure, the utmost care is taken by us while fabricating them. Depending on the generating capacity of the boiler the header sizes fabricated by us vary from 100 mm to 600 mm NB. The stubs of various sizes are very carefully welded to the main body of the header to provide the desired openings from the headers
3. Bevelling and weld preparation of stubs duly tack-welded to the main body of the header are first shown to Chief Inspector of Boilers for his approval and once again the stubs fully welded with main body are shown to Chief Inspector of Boilers under hydraulic pressure, varying from 1000 to 3000 psi as required by the specifications.
4. The headers are stamped by Chief Inspector of Boilers before they leave our manufacturing plant. We also weld skubolets and weldolets in place of stubs.

 

Boiler Manifold Headers Specification

 

Product Name
Membrane Water Wall Header for boiler
Applied Area
boiler membrane water wall
Body Material
- Carbon Steel : 20#, 20G, A192, A-1
- Alloy Steel : 15CrMoG, 12Cr1MoVG, T11, T22
Nozzle Tube Material
As per design
Standard
China GB, ASME
Manufacturer Grade
China A Grade, ABS Certificated, TUV Certificated
Working Temperature
depends on material
Working Pressure
1.6 MPa ~ 15 MPa
Body Thickness
As per design
Body Diameter
As per design
Body Length
As per design
Welding
SMAW, SAW, GTAW (TIG)
Welding NDT
- Body : 100% RT or 100% UT
- Nozzle tube > Φ108 : > 20% MT, 100% UT
- Nozzle tube <= Φ108 : > 20% MT

 

After Heat Treatment

 

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