Zhangjiagang HuaDong Boiler Co., Ltd.
Zhangjiagang HuaDong Boiler Co., Ltd.
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Boiler headers, or boiler manifolds are designed to simplify piping near the boiler, reduce installation time, labor costs and parts used. Available in various branch options with threaded inlet and outlet connections. For closed loop heating applications only.
The pressures and temperatures that headers have to withstand depend on the component to which they are connected. A header connected to an economizer or to water wall panels is subject to less severe requirements on the material than a header connected to superheaters or reheaters.
Technical Parameter
| 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 | HDB |
| Remarks | Customized order is also accepted. |
Details
1.The necking hinders of the Company are made by hot press and retracting of seamless steel pipes at special hinder necking machine.
2.In this way, the hinders will have thicker walls and cleaner surface. The necking cover will form membrane stress rather than bending stress with desired stress performance under the effect of inner pressure.
Features
The pressures and temperatures that headers have to withstand depend on the component to which they are connected. A header connected to an economizer or to water wall panels is subject to less severe requirements on the material than a header connected to superheaters or reheaters.
Depending on the temperature and pressure of headers, Vallourec supplies tubes in carbon steel to high-alloy ferritic steels such as T/P91 or T/P92, with sizes ranging from 88.9 mm to 406.4 mm.
Application
CFB distributing economizer header with high welding technique have water wall header, superheater header, economizer header and so on, it acts as collection, mixture, re-distributing working medium, as the structure, it can be classified as the end cover type( end enclosure) and necking down type.
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