Industry Applications
High-precision PE-lined pipe · Automet® digital-twin survey · global prefabricated delivery — reliable seawater-piping solutions for shipping, oil & gas, mining and environmental retrofits.
Marine & Offshore
Marine & Offshore · drydock pipe-prefabrication specialists
Key Challenge
Corrosion and leaks are frequent on in-service seawater lines, while drydock windows are very short; traditional on-site welding and hot work carry safety risks, high rework rates and longer off-hire.
The Irwin Solution
Automet® digital-twin survey plus 100% workshop-prefabricated PE-lined spools that simply bolt up on arrival at the dock — zero on-site hot work, zero trimming.
Benchmark Projects
7,500 TEU container vessel — fully prefabricated central-cooling pipe project – the vessel's entire central-cooling seawater line, 100% workshop-prefabricated, fitted first time on docking with zero rework, saving 5 drydock days.
Dubai bulk carrier — central-cooling pipe – precise Automet survey and PE-lined carbon-steel seawater pipe; total cost down 55%, delivered ahead of schedule.
7500 TEU: 100% prefabricated, first-time fit. Dubai bulk carrier: >50% cost saving.
Oil & Gas · LNG / FSRU
Oil & Gas · regasification & exhaust-management pipe
Key Challenge
FSRU regasification seawater pipe is large-bore (DN800+) and complex; international projects need multi-site coordination, and traditional approaches carry high on-site trimming risk and heavy off-hire losses.
The Irwin Solution
Coordinated global survey (Brazil/Europe) plus precision PE-lined prefabrication in China, with digital-twin-guaranteed flange and gasket tolerances, installed directly on arrival at the Türkiye yard.
Benchmark Projects
Türkiye FSRU — regasification seawater-pipe renewal – large PE-lined spools supplied from Brazil-based Automet survey data, manufactured in China and shipped to Türkiye; won on quality and cost.
DN800 EGCS scrubber-seawater pipe renewal – 25 m of pipe with three DN600 branches, fully prefabricated, 100% first-time fit, saving substantial off-hire with zero hot work.
Turkey FSRU regasification: Brazil survey → China fab → Turkey bolt-up. DN800 EGCS: 100% first-time fit.
Mining
Mining · high-abrasion slurry & chemical lines
Key Challenge
Abrasive slurry and acidic media perforate ordinary carbon-steel pipe within months; frequent replacement causes heavy downtime losses, and on-site repair is difficult.
The Irwin Solution
HDPE rotary-lining technology suits elbows, tees and other complex geometries, with abrasion resistance up to 95% better than rubber lining and refurbishment at just 50% of new-pipe cost.
Benchmark Projects
A large Asian mining company — tailings line – DN150–DN500 PE-lined pipe and elbows supplied to replace plain steel, extending service life from 9 months to over 3 years and cutting maintenance cost by 62%.
Copper-mine leach line — refurbishment – old pipe re-lined with HDPE to restore performance in just 4 days, at under half the cost of new pipe.
HDPE lining extends a service life over 15 years in slurry service. Refurbishment at 50% cost of new spools.
BWTS / EGCS Retrofit
Ballast-water treatment & exhaust-gas-cleaning retrofits
Key Challenge
Engine-room space is extremely tight and old pipework has no drawings; on-site retrofit needs heavy cutting and welding, badly affecting the yard's drydock schedule with high hot-work safety risk.
The Irwin Solution
Automet 3D laser scanning builds a digital model of the engine room and reverse-engineers new pipe drawings; fully prefabricated PE-lined spools fit on arrival, cutting on-board hot work by 90%.
Benchmark Projects
A large container fleet — BWTS retrofit – six consecutive vessels used Irwin's prefabricated approach; 100% prefabricated spools, with the yard reporting "zero trimming, fit and go" and 4 drydock days saved per ship.
Bulk carrier — EGCS scrubber seawater pipe – delivered end-to-end by digital twin, installed with no on-site welding and passing classification-society survey first time.
90% reduction in hot work, class-approved prefabricated spools for BWTS/EGCS retrofit.
Seawater Cooling Systems
LT coolers · ballast lines · fire-water mains
Key Challenge
Central coolers (LT) and ballast-pump lines suffer constant seawater corrosion and frequent leaks; conventional replacement means cutting out and re-welding whole sections — costly and carbon-heavy.
The Irwin Solution
Old-pipe PE re-lining: after cleaning the inner wall, the pipe is re-lined with polyethylene, outperforming new pipe at under 50% of its cost and sharply cutting carbon by reusing the steel.
Benchmark Projects
A major liner company — full LT-cooler replacement – 30 prefabricated large-bore PE-lined spools plus PE-lined seawater strainers supplied; installed with zero misalignment, improving cooling efficiency with 5 years maintenance-free.
A 10-year-old bulk carrier — seawater-line refurbishment – urgent PE re-lining of critical sections completed within 24 hours to restore operation, at just 42% of the yard's new-pipe quote.
PE re-lining of existing pipes: better-than-new performance, 50% lower cost, 60% less carbon.
Emergency repair & global delivery
Emergency Response · remote digital survey + fast delivery
Key Challenge
A pipe bursts at any port worldwide where there is no local lining or fabrication capability; the traditional route ships the old pipe back to the workshop — 4–6 weeks, with customs restrictions on importing used pipe.
The Irwin Solution
Remote-guided digital survey + 48-hour prefabrication in Shenzhen + air or express-sea freight delivers from survey to site in 6–8 days, with no used-pipe import, and an installation team can attend the vessel.
Benchmark Projects
A Hong Kong shipowner — emergency pipe supply – with the old pipe unable to be shipped from Hong Kong to the mainland, Irwin captured the data remotely with Automet, prefabricated in Shenzhen in 6 days and shipped back to Hong Kong — solving the lack of a local lining facility.
Zhoushan DN800 large-bore pipe project – manufactured straight from the digital survey, with no need to copy the old pipe or build welding jigs — an industry first that saved the yard 70% of prefabrication time.
6–8 days emergency shipment to Hong Kong / Zhoushan. No old pipe import needed, digital twin prefab.