Orbital TIG welding for hygienic piping
Orbital TIG welding in Qatar for hygienic 316L process piping, with controlled purge, weld mapping, boroscopy and documented QA for food, dairy and pharmaceutical plants.
View service →We control the full hygienic piping lifecycle, from direct-mill material sourcing to certified installation and audit-ready handover, so purity and traceability are never left to a subcontractor chain.
Automated orbital welding produces uniform, repeatable joints with 100% back purging — eliminating oxidation and crevices where bacteria could harbour.
Complete hygienic process line erection built for full drainability and clean-in-place operation, engineered to 3-A, EHEDG and FDA guidance.
Prefabricated spools, skids and manifolds assembled in controlled shop conditions — tighter tolerances, cleaner welds and faster, lower-risk site handover.
Electropolished ASTM A270 tube and passivated surfaces validated to ≤0.6µm Ra — the mirror finish that resists fouling and supports validation.
Direct-mill supply of stainless grades with full documentation — no middleman markups, no traceability gaps between mill and installed weld.
Every project closes with a complete, audit-ready dossier — the evidence your QA and validation teams need to release the system.
Material selection is where hygienic performance is won or lost. We match grade to duty — balancing corrosion resistance, weldability and cost — and back every batch with 3.1 mill certification.
For Qatar's coastal, chloride-heavy atmosphere, 316/316L is our default for corrosive and outdoor service; its molybdenum content resists the pitting that undoes lesser grades.
Grade selection, standards mapping and direct-mill procurement with 3.1 certs.
Orbital-welded spools and skids prefabbed to tight tolerance off-site.
Field erection with 100% back-purged welds and weld-map traceability.
Passivation, boroscopy, hydro-test and a full audit-ready turnover pack.
A snapshot of what we fabricate, weld, finish and certify. Non-standard sizes, grades and finishes are available on request.
| Pipe & tube size | ½" to 12"+ (DN15–DN300 and above) |
|---|---|
| Stainless grades | 304 / 304L, 316 / 316L, 321, duplex |
| Tube standards | ASTM A270 (sanitary), ASTM A312 / A213 |
| Internal finish | ≤0.6 µm Ra electropolished; polished & mill options |
| Welding | Automated orbital TIG, 100% back-purged; manual TIG (6G) |
| Connections | Orbital butt welds, tri-clamp, hygienic unions |
| Design codes | 3-A, EHEDG, FDA, ASME B31.3 |
| Weld qualification | ASME Section IX, AWS D1.6, API 1104 |
| Testing | Hydrostatic, boroscopy, dye-penetrant, radiography |
| Passivation | Chemical passivation to ASTM A967 |
Detailed guidance for plant owners, consultants and procurement teams.
Orbital TIG welding in Qatar for hygienic 316L process piping, with controlled purge, weld mapping, boroscopy and documented QA for food, dairy and pharmaceutical plants.
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