Large Pressure Vessel & Industrial Tank Fabrication
Heavy, High-Pressure Industrial Vessels Engineered for Performance
Openex delivers engineered pressure vessels and large-capacity storage tanks for the most demanding industrial environments. Built in-house, our vessels meet global standards such as ASME, API, and GB/T, and are deployed across oil & gas, chemical, refining, power generation, and process manufacturing sectors.
With capabilities to fabricate vessels up to 8 meters in diameter, 100 meters in length, and 1,000 tons per unit, we are among the few manufacturers globally capable of handling ultra-large cylindrical and modular pressure vessel assemblies. Our expertise covers thick-wall pressure-bearing shells, multi-chamber reactors, high-pressure separators, and custom shell-and-tube bodies.
Our Vessel Range Includes:
- High-pressure horizontal & vertical vessels
- Refinery reactors, columns, scrubbers, separators
- Heat exchanger shells and cooling towers
- Storage tanks for chemicals, fuels, hydrogen, ammonia
- Skid-mounted modular pressure systems
Manufacturing Capabilities
- Max Diameter: 8 meters
- Max Length: 100 meters
- Max Unit Weight: 1,000 tons
- Shell Forming: Cold and hot plate rolling, cone forming
- Welding: SAW, MIG, TIG, robotic, orbital, and strip cladding
- Heat Treatment: PWHT, annealing, normalizing (furnace: 35m × 11m × 12.5m)
- Surface Treatment: Internal linings, anti-corrosion paint, rubber/FRP lining, thermal spray coatings
Material Capabilities
- Carbon Steel: Q345R, SA516 Gr. 60/65/70
- Alloy Steels: SA387 Gr. 11/22, Cr-Mo-V alloys
- Stainless Steel: 304, 316L, 321, 904L, Duplex, Super Duplex
- Nickel-Based Alloys: Inconel, Hastelloy, Monel
- Clad Plates & Explosion-Bonded Materials
Inspection & Quality Control
- Non-destructive Testing (UT, RT, MT, PT, PMI)
- Hydrostatic & Pneumatic Pressure Testing
- Weld Qualification: WPS/PQR, third-party witnessed
- Dimensional Control: 3D laser tracker, CMM
- Mechanical Tests: Impact, hardness, tensile
- Full Traceability: MTRs, NDE records, heat maps
Why Choose Openex?
- One-stop manufacturing from steel plate to finished pressure vessel
- Certified under ASME (U, U2), ISO 9001, CE, API
- In-house engineering support with design verification and FEA validation
- Global delivery and packaging for modular system integration
Contact Our Experts
Discuss your next high-pressure tank or vessel project with our engineering team today.
📧 Email: [email protected]
📞 Phone: +86 186 5928 0806
Our Full-Service Metal Fabrication: metal cutting and sheering, metal forming, bending, and rolling, welding, CNC machining, sheet metal assembly, and quality inspection
Machining Services: Multi-Axis Machining, 5-Axis Machining, CNC Milling | Vertical and Horizontal, CNC Turning | Vertical and Horizontal, CNC Engineering, CMM Inspection
Material Types: castings, forgings, fabricated weldments, billets, bar stock, and plate
Metal Materials we worked: Stainless steel, Carbon Steel, aluminum, brass, bronze, chromium, copper, Monel, nickel, titanium, zinc, and many other superalloys.
Certifications: ISO 9001, CE EN 1090-1, ISO 3834, ABS, AWS, API, ASME, DNV.GL.
Industries Served: Mining, Construction, Oil & Gas, Power Generation, Marine, Automotive, Renewable Energy, Pulp & Paper, Bridge, Aerospace, Defense, Printing and Dyeing, Machinery, etc.