



Field-Erected Storage Tanks
Tanks too large to ship whole are built on site. Plates are cut, rolled and bevelled in the workshop, shipped to site and welded on the tank foundation.
Our reference list includes a 10,000 m³ wax-oil tank, floating-deck fabrication and installation for a crude oil reserve base in Hainan, tank installation for a top chemical group's ethylene complex in Yantai, and a tank package for a refinery phase II project in Huizhou.
Site work runs under our construction qualifications, including petrochemical engineering general contracting Grade 2 (D236A02207, valid to 2030-02-14).
| Tank type | Vertical cylindrical tanks; floating decks |
|---|---|
| Materials | Carbon steel; stainless steel 304, 316L |
| Shop prefabrication | CNC cutting, bevelling, rolling of plate up to 70 mm |
| Site welding | To qualified WPS/PQR |
| Inspection | RT, UT, MT, PT as specified |
| Protection | Sa 2.5 blasting, epoxy zinc-rich + PU; PE lining; insulation |
| Site qualification | Petrochemical engineering general contracting, Grade 2 (D236A02207) |
Sizes and ratings are confirmed against your data sheet.
- Crude oil storage: floating-deck work for a crude oil reserve base in Hainan
- Petrochemical tank farms: an ethylene complex in Yantai, a refinery in Huizhou, a 400,000 t/a PVC and 300,000 t/a caustic soda project
- Bio-energy: a 10,000 m³ wax-oil tank for a bio-energy producer in Sichuan
- Environmental: anaerobic digesters, leachate and wastewater tanks
- Food and beverage: distillery tank farms
- Plate verified against mill test reports, then CNC cut and bevelled in Jinxian.
- Shell plates rolled to curvature on 3- and 4-roll benders.
- Prefabricated parts marked, packed and shipped to site.
- Site erection and welding to qualified WPS/PQR.
- NDT by RT, UT, MT and PT as required by the tank code and your inspection and test plan.
- Tightness and water fill testing as specified.
- Sa 2.5 blasting and coating; PE lining or insulation where specified.
- 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.
What site information do you need before planning erection?
Site location and access, foundation drawings and handover date, crane access and laydown area, power and water supply, local permit requirements, and the scope split for foundations, coating, insulation and testing.
What checks should be completed before commissioning a large tank?
Weld inspection records, dimensional checks, tightness testing of the bottom and shell, a water fill test as required by the tank code, coating inspection, and a check of nozzles and accessories against the drawings.
Can you work as a subcontractor to our EPC or installation team?
Yes. Much of our tank work has been done as a subcontractor to installation companies and EPC contractors, covering fabrication, erection, coating and insulation.
Which coatings and insulation can you apply?
Sa 2.5 blasting with epoxy zinc-rich primer and polyurethane topcoat, PE lining of carbon steel tanks, and thermal insulation, to your specification.
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- 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
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