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Refinery cooling water,
replaced inside
the turnaround
GRP piping for the cooling water, utility and firewater systems of refineries and petrochemical plants. Not only new build. Replacing corroded steel in a plant that is already running is the harder job, and it is the one we are set up for.
Retrofit and Revamp
ISO 14692
DN25 to DN5000
Field-measured specials
Made in Vietnam
Scope of Experience
Delivered: Cooling water line replacement at an onshore refinery and petrochemical complex in Vietnam. GRP pipe and fittings supplied through the plant maintenance contractor, manufactured from field measurements and installed within a fixed shutdown window.
Capability: Offshore systems and other GRP piping scopes, designed and fabricated to ISO 14692.
How we supply: We work as a sub-supplier through EPC contractors, plant maintenance companies and equipment vendors. We do not approach end users directly, and we present references by industry, country and technical specification rather than by client name.
We keep these three separate on purpose. Send us a specification and we will tell you in writing which of them your scope falls under.
Applications
Where GRP fits in a refinery
Not the process lines. The utility systems that keep the plant running. Lines with no hydrocarbon but constant water flow are exactly where carbon steel fails first.
Cooling water and firewater scope. Hydrocarbon process piping stays in steel.
Illustrative images, not project photographs.
01
Cooling Water and Utility
Circulating cooling water, make-up water and service water. Large bore, low pressure, long runs. This is where GRP has the widest margin over steel.
- DN500 to DN5000, filament wound
- Replacement of corroded carbon steel
- Bolt-compatible with existing flanges
02
Utility and Drainage Networks
Wash water, drainage and effluent transfer. Mostly buried, which is where corrosion and cathodic protection cost the most over a plant life.
- Buried stiffness classes SN 2500 / 5000 / 10000
- No cathodic protection required
- Gravity drainage gradients accommodated
03
Firewater Systems
Firewater ring mains and buried headers. These lines sit permanently flooded, which makes internal corrosion the weak point of a steel system.
- Fire-retardant resin, ASTM E84 Class I
- No corrosion when buried
- Flow coefficient holds over time
Replacement is harder than new build
Changing a cooling water line in a running refinery is not a matter of building to drawing. The as-built rarely matches the drawing, the outage window is fixed, and whatever steel stays in place has to bolt up to what you deliver.
01
Built from field measurement
Record drawings and actual dimensions usually differ. We re-establish flange positions and angles from site measurement and fabricate to those.
02
Matched to existing flanges
Bolt hole pitch and count have to match the steel sections that remain. We fabricate to ANSI, JIS and KS flange standards.
03
Installed inside the window
Light enough to move and assemble without heavy lifting equipment, which is often what makes a fixed outage window achievable.
04
Manufactured in Vietnam
Our plant is local, so the measure, fabricate and deliver cycle is short. No import lead time and no customs clearance in the critical path.
Capability, Offshore
Offshore systems
For offshore GRP piping, ISO 14692 governs design, qualification and installation. The systems below are within our technical capability.
SYSTEM 01
Firewater Ring Main
Seawater firewater ring mains and deluge. Permanently flooded service, where internal corrosion progresses fastest in a steel system.
SYSTEM 02
Seawater Lift and Cooling
Seawater lift risers and cooling water headers. Riser weight reduction translates directly into reduced structural load.
SYSTEM 03
Produced Water and Drain
Produced water, open drain and closed drain systems, in mixed brine and hydrocarbon service.
SYSTEM 04
Utility and Ballast
Service water, wash water, ballast and drainage networks.
To be clear about scope. The systems above describe technical capability for offshore facilities. They are not presented as delivered offshore projects. Our delivered work is in onshore refinery, petrochemical and power generation. If you have an offshore scope to review, send the specification and we will confirm in writing what we can cover.
Adjacent Experience
Same product, different industry
A refinery cooling water line and a power plant circulating water line carry the same fluid at the same diameters under the same design conditions. The industry label changes. What we build does not.
POWER
Vung Ang 2 Thermal Power Plant
Seawater cooling water line, GRP pipe fabrication and site installation. Large bore seawater piping delivered and installed.
REFINERY
Refinery and Petrochemical Complex, Vietnam
Cooling water line replacement in a running plant, supplied through the maintenance contractor and built from field measurement.
CHEMICAL
Chemical Plants, Japan and Korea
Hydrochloric acid scrubbers, storage tanks and separators. Fabricated and inspected under Japanese and Korean client requirements.
Project detail is available on the Projects page or on request.
Standards
Applicable standards
ISO 14692
GRP piping for petroleum and natural gas industries
ASTM D2996
Filament-wound FRP pipe
AWWA C950
Fiberglass pressure pipe
BS 5480
GRP pipes and fittings
ASTM E84
Surface burning characteristics, Class I fire-retardant grade
ANSI / JIS / KS
Flange standards for tie-in to existing steel
ISO 9001 / 14001
Quality and environmental management systems
If a turnaround is scheduled
Start with the shutdown dates. We will work backwards through measurement, fabrication and delivery and tell you whether it is achievable before anything else. If the drawings are old and no longer match the plant, we start from site measurement.
We also work directly with plant maintenance contractors. Delivering to a fixed outage window is the job we do most often.
Need help? Contact us
