Pressure Vessels
ASME Section VIII Div.1 pressure vessels — separators, filters, drums and columns — fabricated and code-stamped in Abu Dhabi.
Why This
Matters
The wrong specification here doesn't show up on day one — it shows up as downtime, contamination or wasted energy later.
Asset protection
A pressure vessel is a stored-energy hazard — design or weld shortcuts are not discovered until failure, and failure is catastrophic. ASME Section VIII design and certified welding are the only acceptable standard.
Process integrity
Separator and drum internals decide downstream equipment life; poor vessel hydraulics cascade through the whole train, showing up as carryover, fouling and premature wear well beyond the vessel itself.
Operational efficiency
Overseas vessel procurement adds months of schedule and freight risk to projects that a UAE fabricator eliminates. In-region fabrication also means faster response when a vessel needs modification or repair.
Where It's
Used
Pressure Vessels in service — sector by sector, application by application.
Oil & Gas
Separators, KO drums, pig launchers/receivers, filter vessels.
View Oil & GasPetrochemicals
Process drums, columns and reactor auxiliaries.
View PetrochemicalsChemical Manufacturing
Stainless and alloy vessels for corrosive inventories.
View Chemical ManufacturingWater & Desalination
Pressure filters, degassers and chemical dosing vessels.
View Water & DesalinationPower & Energy
Blowdown vessels, deaerators and air receivers.
View Power & EnergyMarine & Offshore
Compact skid-mounted vessels with class documentation.
View Marine & OffshoreHow It Works
A pressure vessel safely contains fluids above atmospheric pressure. Its integrity comes from engineered wall thickness, qualified welds, and verified materials — all governed by ASME code.
- 1
Mechanical design to ASME Section VIII Div.1 sets shell and head thickness, nozzle reinforcement and flange ratings.
- 2
Traceable plate and forgings are cut, rolled and fit-up under a documented weld map.
- 3
Qualified welders execute qualified procedures; every joint is traceable to welder and WPS.
- 4
NDT (RT/UT/PT/MT) verifies weld integrity to the code-required extent.
- 5
Hydrostatic testing, final inspection and U-stamping close out the code data report.
Configurations
We Offer
Every variant Dolphin builds — each engineered for a specific duty, not a catalogue default.
Separators & KO Drums
- Best For
- Two- and three-phase separation in gas processing.
- Advantage
- Internals engineered for real droplet-size performance, not just volume.
Filter & Strainer Vessels
- Best For
- Product filtration and pipeline protection.
- Advantage
- Quick-opening closures engineered for safe, fast element change-out.
Storage & Surge Vessels
- Best For
- Buffer volumes, air receivers, chemical storage.
- Advantage
- Optimised plate utilisation keeps cost per m³ down.
Columns & Towers
- Best For
- Small process columns and stripping duty.
- Advantage
- Internals installation and verticality control in-house.
How to
Choose
| Criterion | Guidance |
|---|---|
| Design pressure & temperature | Sets code calculations, material class and flange ratings — including full/partial vacuum cases. |
| Fluid service | Sour, lethal or cyclic service triggers supplementary code requirements (impact testing, PWHT, NACE). |
| Metallurgy | Carbon steel, killed CS for low temperature, stainless, duplex or clad — driven by corrosion allowance economics. |
| Nozzle & internals layout | Process function decides internals; piping layout decides nozzle orientation — both fixed before steel is cut. |
| Inspection access | Manways and inspection openings placed to make future statutory inspection practical. |
Key
Benefits
What sets pressure vessels from Dolphin apart, in specific and measurable terms.
- 01
Certified fabrication
ASME U-stamp fabrication with full code data reports.
- 02
Full material traceability
EN 10204 3.1/3.2 traceability on every pressure part.
- 03
Sour service capable
PWHT, impact-tested and NACE MR0175 sour service capability.
- 04
No subcontract chain
In-house rolling, welding, NDT and hydrotest.
- 05
Faster project schedules
UAE fabrication removes months of freight and customs delay.
- 06
R-stamp repairs
Repairs and alterations of existing code vessels.
Technical
Specifications
Design codes, materials and testing scope confirmed for every pressure vessels order.
| Design code | ASME Section VIII Div.1 (U & R stamps) |
| Design pressure | Full vacuum to 150+ bar |
| Materials | CS · LTCS · SS · Duplex · Clad plate |
| Max weight | Single-piece vessels to 100+ tonnes |
| Welding | SMAW · GTAW · SAW · FCAW, qualified to ASME IX |
| Testing | Hydro · pneumatic · RT/UT/PT/MT · PMI · hardness |
Why Dolphin for
Pressure Vessels
Code authority in-country
ASME U and R Certificates of Authorization held at Mussafah — new construction and repair, stamped locally.
Heavy fabrication capacity
25,000 m² of workshop with rolling, PWHT and lifting capacity for vessels beyond 100 tonnes.
ADNOC & ICV+ standing
Vendor-approved and ICV+ certified — your vessel procurement scores on local value while cutting schedule.
Frequently Asked Questions
From small filter housings to single-piece vessels beyond 100 tonnes and 3.5 m diameter, limited mainly by road transport constraints from Mussafah.
Yes — our ASME R-stamp covers code repairs and alterations, re-rated and documented with new nameplate data.
Yes — NACE MR0175/ISO 15156 compliant materials, hardness-controlled welding and PWHT are standard sour-service scope.
A complete dossier: U-1 data report, material certificates, weld map, WPS/PQR, NDT reports, hydrotest records and nameplate rubbing.
Either. Our engineers perform full ASME design in PV Elite from your process data, or fabricate to your approved drawings.
Yes — demister pads, vortex breakers, distributors and column internals are supplied and installed in-house.
Yes — furnace and local PWHT with documented time-temperature records.
Send your process datasheet or drawings via the RFQ form; budget pricing is typically returned within a week.
Talk to an Engineer About Pressure Vessels
Send your duty requirements or existing datasheet — our engineers will confirm the right configuration and get you a quote.