Alloy Steel Boiler Manifold Headers Advanced Welding 300℃~1500℃ Temp

High Quality Boiler Header Product description

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.The necking hinders of the Company are made by hot press and retracting of seamless steel pipes at special hinder necking machine. In this way, the hinders will have thicker walls and cleaner surface.

3. The necking cover will form membrane stress rather than bending stress with desired stress performance under the effect of inner pressure.

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

Perfect welding

    Dehai Boiler is a manufacturer of A-class boiler(Power station boiler,industrial boiler,HRSG,waste-to-energy boiler,biomass boiler) and correlated A-class pressure parts intergrating the design,fabrication,installation,repair and mainteance.

Dehai has ISO9001:2008 certificate issued by France AFAQ-EAQA Ltd,A-class boiler manufacturing license,ASME S Stamp and U Stamp authorized certificate.

    Through effective management system and high quality products,Dehai became the qualified supplier of many famous boiler factories and energy companies and has won a lot of stable customers both domestic and abroad ,such as :Amec Foster Wheeler,Alstom,Dongfang Boiler,Harbin Boiler,Hangzhou Boiler,etc.

    Based on the business idea of "High quality for survival and perfect service for development",we shall care for customers' demand and keep improving our work permanently. To create Dehai brand,is to serve clients with our improved products and better performance.

    Dehai is located in Economic and Technological Development Zone,Zhangjiagang City,Jiangsu Province. S38 highway Zhangjiagang exit is about 1.5 kilometers to the north of our company and the traffic is very convenient.