Custom Pressure Vessels
Many projects need vessels that do not match a standard type: special internals, unusual nozzle layouts or combined duties. These are built one at a time to the project data sheet.
We fabricate them to your design, or to drawings prepared by a licensed design institute. Our licence TS2236612-2027 covers Class D fixed pressure vessels, medium and low pressure, so the design pressure must be below 10 MPa.
Shells are cut on CNC laser, flame and plasma machines, rolled on 3- and 4-roll benders up to 70 mm, welded by SAW and GMAW to qualified WPS/PQR, inspected by RT, UT, MT and PT, and hydrostatically tested before coating.
| Design basis | Your design, or drawings prepared by a licensed design institute |
|---|---|
| Design pressure | −0.1 to <10 MPa (Class D, medium and low pressure) |
| Design temperature | −196 °C to 350 °C |
| Materials | Q235B, Q245R, Q345R, Q490R, 15CrMo, 16MnDR, 09MnNiD, 06Ni7DR, 304, 316L, clad plate |
| Shell plate | Up to 70 mm (roll-bending capacity) |
| Codes | GB/T 150, GB/T 151, TSG 21 |
| Licence | TS2236612-2027, fixed pressure vessels, Class D, valid to 2027-08-27 |
| Workshop lifting | Overhead cranes up to 50 t |
Sizes and ratings are confirmed against your data sheet.
- Petrochemical and chemical process units
- Energy, utility and gas storage systems
- Environmental and wastewater treatment plants
- Food, beverage and biotech processing
- New materials and specialty chemicals
- 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.
- Machining and final assembly of internals, nozzles and supports.
- 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.
Can you manufacture to our drawings, data sheets and inspection requirements?
Yes, within our Class D licence (below 10 MPa). Send your inspection and test plan with the enquiry so hold points and witness points are agreed before fabrication.
We have no drawings yet. Can you design the vessel?
Pressure-vessel design is outsourced. If you have only a process data sheet, drawings can be prepared by a licensed design institute, and we fabricate to them.
What affects the price of a custom vessel?
Material grade and plate thickness, design pressure and temperature, the extent of NDT, heat treatment, internals and nozzles, coating, and the documents required. A complete data sheet gives the most accurate quotation.
Which documents are in the data book?
Certificate of conformity, quality certificate, as-built drawings, MTRs, WPS/PQR records, NDT reports, hydrostatic test report, heat-treatment chart if applicable, and packing list.
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
