Large vessel shell with an open flange end, checked by an inspector in the vessel workshop
Crane lifting an SF double-wall fuel tank into place at a fuel station
Canopy steel frame lifted into place, crew working from an aerial basket
Aerial view of the Wanlong headquarters and workshops in Jinxian, Jiangxi

Pressure vessel, storage tank & steel structure manufacturer in China

Service Creates Value,
Quality Comes
from Details.

Pressure vessels, storage tanks, SF double-wall tanks, steel structures and skid-mounted units, cut, rolled, welded and tested on one 133,000 m² site in Jiangxi.

SF double-wall tanks

Set in the ground
by our own crews.

Steel inner tank, FRP outer jacket and a monitored interstitial space, supplied under framework agreements with a national fuel retailer.

Steel structures

And the steel that
stands above them.

Station canopies, pipe racks, platforms and space frames, fabricated in the bay next to the tank line.

The plant · Jinxian, Jiangxi

One fence line
since 2003.

A 133,000 m² site, 50,000 t of annual capacity and 180 people, 45 of them engineers and technicians.

Scroll

Part by part,seam by seam.

Each product line drawn the way we build it: shells, heads, jackets and frames first, the welds that hold them last.

Not to scale · seams shown in orange

Pressure Vessels

Reaction, heat-exchange, separation and storage vessels, built under our Class D licence to GB/T 150 and TSG 21.

Design pressure
−0.1 to <10 MPa
Design temperature
−196 °C to 350 °C
Shell plate
Up to 70 mm
Materials
Q245R, Q345R, 15CrMo, 304, 316L
View range

Storage Tanks

Vertical and horizontal tanks in carbon and stainless steel, shop-built in Jinxian or erected on site.

Volume
5 to 5,000+ m³
Wall thickness
6 to 70 mm
Materials
Q235B, Q345R, 304, 316L
Protection
Sa 2.5, epoxy zinc-rich + PU
View range

SF Double-Wall Tanks

A steel inner tank, an FRP outer tank and a monitored interstitial space, for underground fuel storage.

Volume
10 to 50 m³
Inner tank
Q235B steel
Outer tank
FRP
Standards
SH/T 3178 · UL 1746
View range

Steel Structures

Station canopies, pipe racks, platforms and built-up members, welded, blasted and coated before they leave the bay.

Steel grades
Q235B, Q355B
Welding
SAW and GMAW to WPS / PQR
Surface
Sa 2.5 blasting
Codes
GB 50017 · GB 50205
View range

Skid-mounted Units

Tank, dispenser and safety equipment on one skid, assembled and tested in our workshop before delivery.

Models
JY-10, JY-20, JY-30, JYQ-20
Tank
10 to 30 m³ SF double-wall
Explosion protection
Ex d IIA T4 (JY series)
Media
Petrol, diesel; CNG / LNG
View range

Plate to pressure test,under one roof.

Site
133,000m²
Vessel workshop
30,000m²
Annual capacity
50,000t
Overhead cranes
to 50t
Jinxian, Jiangxi
THE PLANT

Jinxian, Jiangxi

Headquarters, vessel workshop and steel-structure bays on one site, 180 people, 45 of them engineers and technicians.

CNC laser, flame and plasma
STEP 1 · CUTTING

CNC laser, flame and plasma

Shell plates, head blanks and structural members are cut and bevelled from verified plate.

Shells from plate up to 70 mm
STEP 2 · ROLLING

Shells from plate up to 70 mm

Three- and four-roll benders form the cylindrical courses.

Submerged-arc seams
STEP 3 · WELDING

Submerged-arc seams

Longitudinal and circumferential welds to qualified WPS / PQR.

RT and UT in our own room
STEP 4 · INSPECTION

RT and UT in our own room

Then hydrostatic testing at 1.25 × design pressure with a 30-minute hold.

Sa 2.5 before coating
STEP 5 · BLASTING

Sa 2.5 before coating

CNC shot blasting removes mill scale and rust.

Epoxy, PU and FRP lines
STEP 6 · COATING

Epoxy, PU and FRP lines

Paint systems for steel; spray lines build the FRP jacket of double-wall tanks.

Loaded with its data book
STEP 7 · DELIVERY

Loaded with its data book

Overhead cranes up to 50 t load finished equipment for the road.

Oil, Gas and Petrochemical
Energy and Environmental
Food, Beverage and Biotech
Pharma and New Materials

Built for what goes inside.

  1. Oil, Gas & Petrochemical
  2. Energy & Environmental
  3. Food, Beverage & Biotech
  4. Pharma & New Materials
Typical equipment
  • Product & crude storage tanks
  • SF double-wall fuel tanks, refuelling skids
  • Pipe racks and station canopies
Recent work
  • Ethylene tank farm, Yantai
  • Refinery tank package, Huizhou
Typical equipment
  • Anaerobic digesters
  • Leachate and wastewater tanks
  • Cold-storage tanks
Recent work
  • Leachate tanks for eight waste-to-energy plants
  • Anaerobic digesters, biomass plant, Guangzhou
Typical equipment
  • 304 / 316L storage and process tanks
  • Reaction and fermentation vessels
  • Distillery anaerobic tanks
Recent work
  • Edible-oil tanks, Tacheng
  • Distillery tank farm, Shandong
Typical equipment
  • 316L reaction vessels
  • Shell-and-tube heat exchangers
  • Solvent and specialty-chemical tank farms
Recent work
  • Specialty-chemical tank farm, Fujian
  • Synthetic-ester stainless tanks, Jiangxi

Above grade and below,on the same job.

On fuel-station builds we supply both halves: the canopy steel overhead and the SF double-wall tanks in the pit, fabricated in one plant and installed by our own crews.

Client
National fuel retailer, Hunan & Henan branches
Contract
Framework supply agreements
Scope
SF double-wall tanks · canopy steel · installation
  • Ethylene tank farm installationYantai, Shandong · Storage tanks
  • Refinery phase II tank packageHuizhou, Guangdong · Storage tanks
  • Floating-roof fabrication, crude reserveHainan · Storage tanks
All projects
Canopy steel columns erected at a fuel station site
EL ±0.000 · GRADE
SF double-wall tanks placed side by side in an excavated pit
+4.80 mAbove grade · canopy steel

Read the nameplate.

Licence numbers, scope and validity, set out the way they are stamped on our vessels, so your inspector can check them before the first call.

JIANGXI WANLONG INDUSTRIAL CO., LTD.No. 2666 Jinxian Avenue · Nanchang · Jiangxi · China
Pressure vessel manufactureTS2236612-2027Fixed pressure vessels, Class D (medium & low pressure)to 2027-08-27
Pressure piping installationTS3836019-2027GC2 industrial pipingto 2027-04-14
Industrial product licenceXK12-002-01012Steel tank bodies for hazardous chemicalsto 2027-11-17
ISO 9001 · 14001 · 4500101725Q10433R2MVessels, SF tanks, skids, steel structures, pipingto 2028-06-17
UL 174620161115-MH61687Jacketed underground tanks for flammable liquidsissued 2016-11-15
Construction contractingD236A02207Petrochemical, building, M&E general contracting, Grade 2to 2030-02-14
Explosion-proof installationPCEC-2024-BC004Ex vapour-recovery units and instrumentsto 2027-05
EPEC supplier credit20240102063A+ rating, Sinopec EPEC procurement platformfrom 2024-07
USCC 91360124746091690KEST. 2003 · MADE IN CHINA

Send us the data sheet.

Tell us 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

Request a quoteWhatsApp +86 183 1791 9067jiakang@wanlongindustrial.com
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