Steam Headers
A steam header, or steam distributor, collects steam from one or more boilers and distributes it to branch lines through a row of nozzles. A drain at the low point removes condensate.
We fabricate steam headers as fixed pressure vessels, with the shell, heads, nozzle row and supports welded and inspected in our vessel workshop.
Vessels are built under our special equipment production licence TS2236612-2027 for Class D (medium and low pressure) fixed pressure vessels. We fabricate to your design, or to drawings prepared by a licensed design institute.
| Service | Steam distribution from boilers to process and heating lines |
|---|---|
| Design pressure | Within our Class D licence: below 10 MPa |
| Design temperature | To your data sheet, up to 350 °C |
| Materials | Q245R, Q345R, 15CrMo, to your data sheet |
| Nozzles | Number, size and flange rating to your data sheet |
| Codes | GB/T 150, TSG 21 |
| Testing | NDT; hydrostatic test at 1.25 × design pressure, 30-minute hold |
| Coating | Sa 2.5 blasting, epoxy zinc-rich primer + polyurethane topcoat |
| Licence | TS2236612-2027, fixed pressure vessels, Class D, valid to 2027-08-27 |
Sizes and ratings are confirmed against your data sheet.
- Boiler houses in chemical and process plants
- Process heating in food, beverage and distillery plants
- Plant and building heating systems
- Energy and utility systems
- Material verification: incoming plate, pipe and fittings checked against mill test reports before cutting.
- CNC laser, flame or plasma cutting, with edge bevelling for weld preparation.
- Shell rolling on 3- and 4-roll benders, plate up to 70 mm.
- Longitudinal and circumferential seams welded by SAW and GMAW to qualified WPS/PQR.
- NDT by RT, UT, MT and PT; radiography in our own shielded RT room.
- Heat treatment where the design requires it.
- Hydrostatic test at 1.25 × design pressure with a 30-minute hold.
- Sa 2.5 blasting, epoxy zinc-rich primer and polyurethane topcoat on carbon steel surfaces.
- Packing and loading with overhead cranes up to 50 t.
- Documents supplied: certificate of conformity, quality certificate, as-built drawings, mill test reports (MTRs), WPS/PQR welding records, NDT reports, hydrostatic test report, heat-treatment chart (if applicable) and packing list.
What information do you need to quote a steam header?
Steam design pressure and temperature, shell diameter and length, the number and size of inlet and outlet nozzles, flange standard, drain and instrument connections, support type and quantity.
Do you build steam headers as pressure vessels?
Yes. We build them as fixed pressure vessels to GB/T 150 and TSG 21, under our Class D licence TS2236612-2027.
Which tests and documents come with a steam header?
Weld NDT and a hydrostatic test at 1.25 × design pressure with a 30-minute hold, with the certificate of conformity, quality certificate, MTRs, NDT and test reports in the data book.
Related products.
Quote this product.
Send the medium, design pressure, temperature and quantity. An engineer replies with questions or a quotation.
- Sales contact
- Mr. Yu Jiakang
- WhatsApp / WeChat
- +86 183 1791 9067
- Factory
- No. 2666 Jinxian Avenue, High-tech Industrial Park, Jinxian Economic Development Zone, Nanchang, Jiangxi, China 331700
Pressure vessels, storage tanks, SF double-wall tanks, steel structures and skid-mounted units, fabricated in Jinxian, Jiangxi since 2003.
Jiangxi Wanlong Industrial Co., Ltd.
No. 2666 Jinxian Avenue, High-tech Industrial Park, Jinxian Economic Development Zone, Nanchang, Jiangxi, China 331700
Contact
- Mr. Yu Jiakang
- WhatsApp +86 183 1791 9067
- jiakang@wanlongindustrial.com
