Shell-and-Tube Heat Exchangers
A shell-and-tube heat exchanger moves heat between two fluids: one flows through the tube bundle, the other around it inside the shell. We build them for cooling, heating, condensing and evaporation duties.
Four configurations are available: fixed tubesheet, floating head, U-tube and kettle type. Heat transfer area runs from 5 to 500 m², with tubes of 19 to 38 mm outside diameter in carbon steel or 304/316L stainless steel.
Exchangers are fabricated under our Class D pressure vessel licence TS2236612-2027 to GB/T 150 and GB/T 151. We work to your design, or to drawings prepared by a licensed design institute.
| Duty | Cooling, heating, condensing, evaporation |
|---|---|
| Type | Fixed tubesheet, floating head, U-tube, kettle |
| Design pressure | −0.1 to <10 MPa (Class D, medium and low pressure) |
| Design temperature | −196 °C to 350 °C |
| Heat transfer area | 5 to 500 m² |
| Tube size (OD × wall) | 19 × 2, 25 × 2.5, 32 × 2.5, 38 × 2.5 mm |
| Tube material | Grade 20 carbon steel; 304 or 316L stainless steel |
| Tube standards | GB/T 8163, GB/T 9948, GB/T 13296, GB/T 14976 |
| Codes | GB/T 150, GB/T 151, TSG 21 |
| Licence | TS2236612-2027, fixed pressure vessels, Class D, valid to 2027-08-27 |
| Design basis | Your design, or drawings prepared by a licensed design institute |
- Process cooling and heating in petrochemical and chemical plants
- Condensing and evaporation duties, including kettle-type units
- Waste-heat recovery in energy and utility systems
- Heating and cooling in food, beverage and biotech plants, with stainless tubes
- Refrigeration and air-separation service
- 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.
- CNC drilling of tubesheets and baffles; tube bundle assembly and insertion into the shell.
- 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.
Which exchanger types can you fabricate?
Fixed tubesheet, floating head, U-tube and kettle types. The choice depends on thermal expansion, cleaning access and the fluids on each side, and is normally fixed on your thermal data sheet.
What tube sizes and materials do you work with?
Tubes of 19 × 2, 25 × 2.5, 32 × 2.5 and 38 × 2.5 mm, in grade 20 carbon steel or 304/316L stainless steel, to GB/T 8163, GB/T 9948, GB/T 13296 or GB/T 14976.
Can you build to our thermal design and drawings?
Yes. Send the thermal data sheet and drawings. Pressure-part design is done by you or by a licensed design institute, and we fabricate to it within our Class D licence, below 10 MPa.
How is an exchanger tested before shipment?
Welds are inspected by RT, UT, MT or PT as the design requires. The exchanger is then hydrostatically tested at 1.25 × design pressure with a 30-minute hold, and the report goes into 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
