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Zhangjiagang HuaDong Boiler Co., Ltd.
Zhangjiagang HuaDong Boiler Co., Ltd.
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Steel Boiler Manifold Headers / Steam Distribution Header Seamless Tubes

Zhangjiagang HuaDong Boiler Co., Ltd.
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Steel Boiler Manifold Headers / Steam Distribution Header Seamless Tubes

Brand Name : HD Boiler
Model Number : Steam Distribution Header
Certification : ISO9001 / SGS / TUV / ASME / EN
Place of Origin : China
MOQ : 1 Set
Price : Negotiable
Payment Terms : L/C, T/T, Western Union
Supply Ability : 500 Tons Per Month
Delivery Time : 30 - 60 Days
Packaging Details : Iron Frame Packing
Condition : New
Structure : Fire / Water Tube
Fuel : Coal / Gas / Coal-fired / Water heat
Type : Boiler Part
Specification : Customized
Pressure : Low / High Pressure
Range of Applications : Industrial / Power Station
HS Code : 3215960855
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Boiler Big Pipes Steam Distribution Header carbon steel or alloy steel seamless tubes saturated steam separation


Product Description


Steam distribution headers are fabricated out of carbon steel or alloy steel seamless tubes. Customised or tailor made items are offered. Headers, after fabrication, are stress relieved to make the Steam distribution headers free from stresses.They are big pipe headers that transfer water from the downcomers to the risers through a combustion zone where the water gets partially heated to steam from the heat of fuel combustion.


Operation


In bringing a boiler on the line with other boilers on a header system,certain precautionss are necessary to avoid water hammer and excessive temperature gradients in the piping.Adequate drainage and warming of the piping will eliminate the risk of water hammer.The judicious use of bypass valves around main header valves will avoid steep temperature gradients.Header drains should be operated.The steam line from the boiler to the header should be brought up to temperature by operationg bypass and drain valves.When up to temperature and line pressure,the header valve may be opened wide and the bypass closed.


Technical parameters


Diameter(OD)¢76mm~¢914mm
Length(Max)23000mm
Temperature(℃)300~1500
Material

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.

The boiler headers have water wall header,superheater header,economizer header and so on. It acts action of gathering, mixing and redistribution in boiler systems. In structure, they include end cover hinders or necking hinders.


Certificate



Company Introduction


Established in 1985,Zhangjiagang Hua Dong Boiler Co.,Ltd.(trading as HD Boiler),produces power plant; industrial; waste heat; waste incineration; biomass; organic heat carrier and electric steam boilers. Coupled with a comprehensive range of heating surfaces, HD Boiler brings to the market a unique service including boiler design , fabrication, installation, maintenance and replacement of boiler pressure parts.


1. Fabrication area of 200,000 square meters

2. 150 Engineers

3. 600 Coded welders

4. 60 Licensed Inspectors(NDT Level-III instructors)

5. Class-A Licenses for Design and Manufacture Boiler

6. ISO 9001:2008 Quality System

7. ASME Certificate of Power Boilers

8. ASME 'S','U' and NB stamp authorization



Company Business


Our products have been wildly used in power plants and large international companies overseas.

Such as USA, Brazil, Porto Rico, Guatemala, Spain, Demark, Norway, Turkey, India, Korea, Australia, Middle East, Southeast Asia etc.



Product Tags:

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