Active Member
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[China]
Address: No.1, Huangqi Road, Li village
Contact name:Edwin
Zhangjiagang Dehai Boiler Co., Ltd |
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Astm Certification Manufacturer Boiler Parts
Boiler Super Heater,Boiler High Temp Superheater,Boiler Cyclone Separator,Boiler Flue,Boiler Heat Pipe Air Preheater,Boiler Gen Bank,Boiler Heat Pipe Elements,Boiler Tube Pin,Boiler Tubeshield,Boiler Ditch Tube
Boiler Headers Manifolds Quality Control
1. Impact test and Strength calculation report with applied materials information.
2. 100%NDT(non-destructive inspection) report of steel plate, tube and electrode.
3. X-ray, γ-ray and liquid penetrant test inspection report to ensure the quality of the entire boiler.
4. Hydraulic test report: ensure the standard working pressure and safety.
Materials
1. Carbon steel:20G,SA-106B,SA-106C,etc.
2. Low-alloy thermal resistant
steel:15CrMoG,12Cr1MoVG,SA-335P12,SA335-P22,etc.
3. Middle-alloy thermal resistant steel:SA-335P91,etc.
4. Special material(ultra-supercritical):SA-335P122,SA-335P92,etc.
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.
Specification
| Materials | Stainless Steel |
| Type | header body, end cover, tube joint, hand cole, thermometer socket;seamless steel tube, pressure parts |
| Advantages | advanced welding, safe and reliable operation |
| Brand | Zhangjiagang Dehai Boiler |
| Remarks | Customized order is also accepted. |
| Material | Carbon steel,Alloy steel,Stainless steel. |
| Length | According to costumes requirements. |
| Temperature Range | 300℃~1500℃ |
| Diameter(OD) | 76mm~914mm |
| 1 | Headers form an important part of all types of boilers. |
| 2 | Steam from the generating tubes is collected in headers which are therefore always under pressure. |
| 3 | This pressure may vary from 300 psi to 2000 psi. Since headers are always under pressure, the utmost care is taken by us while fabricating them. |
| 4 | 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 header |
After Painting
