





Horizontal Storage Tanks
Horizontal storage tanks lie on saddles. They stay low, ship as one piece and are quick to set on site. They are common for fuel, chemicals, water and process liquids where height or foundation load is limited.
We build horizontal tanks complete in our workshop: shell courses rolled on 3- and 4-roll benders, seams welded by submerged-arc welding, heads and nozzles fitted, then tested, blasted and painted before shipment.
Tanks can be atmospheric, or built as pressure vessels for −0.1 to <10 MPa under our Class D licence TS2236612-2027.
| Type | Horizontal on saddles, aboveground or buried |
|---|---|
| Volume | 5 to 5,000+ m³ (storage range) |
| Design pressure | Atmospheric; as pressure vessels −0.1 to <10 MPa (Class D) |
| Design temperature | −40 °C to 300 °C; low-temperature design to −196 °C |
| Wall thickness | 6 to 70 mm |
| Materials | Carbon steel (Q235B, Q245R, Q345R); stainless steel 304, 316L |
| Protection | Sa 2.5 blasting with epoxy zinc-rich + PU paint; insulation; PE lining |
| Codes (pressure tanks) | GB/T 150, TSG 21 |
- Fuel and oil storage at depots and fuel stations
- Urea solution tanks at fuel stations
- Chemical and solvent storage
- Food-grade storage in 304 or 316L stainless steel
- Nitrogen and gas buffer storage, built as pressure vessels
- 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.
- Hydrostatic test at 1.25 × design pressure with a 30-minute hold for pressure tanks; tightness testing for atmospheric tanks as specified.
- 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, MTRs, WPS/PQR welding records, NDT reports, pressure or tightness test report, heat-treatment chart (if applicable) and packing list.
How do we decide whether a horizontal or vertical tank is better for our site?
Horizontal tanks suit moderate volumes, low height limits, buried service and shop-built delivery. Vertical tanks suit large volumes on small footprints. Ground area, transport route, draining and access usually decide it.
How are horizontal tanks shipped?
Complete, on their saddles, by road from Jinxian. Finished tanks are loaded with overhead cranes up to 50 t. Packing, marking and destination port are agreed at order.
Which accessories and instruments should we specify?
Manways, inlet and outlet nozzles, vents, drains, level instruments, ladders and lifting lugs. List them with sizes and flange standards on the data sheet.
Can the tank be lined or insulated?
Yes. Carbon steel tanks can be PE-lined for corrosive media or insulated, and are coated with epoxy zinc-rich primer and polyurethane topcoat after Sa 2.5 blasting.
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
Cookies
Your choice on analytics.
With your consent, Singoo visitor statistics store a random visitor ID to count visits and link an enquiry to the pages you viewed. No visitor ID is stored until you accept. If you decline, the enquiry form sends through your email app instead. Privacy policy


