Aquaculture — integrated EPC from tank to pipe system
SIGRA delivers complete infrastructure for land-based and floating aquaculture under one roof — GRP tanks from Herde Kompositt, PE and GRE pipe systems from Odda Plast, and steel structures from KB Stålindustri.
The aquaculture problem solver
Aquaculture customers building or upgrading land-based RAS facilities usually need GRP tanks, pipe systems and steel structures from three different suppliers. SIGRA brings all disciplines together under one contract.
Herde Kompositt prefabricates GRP tanks in its own production halls — so groundwork and fabrication can run in parallel, reducing total project time. Odda Plast prefabricates PE pipes on its own premises, with shorter lead times than imported alternatives. KB Stålindustri delivers steel structures from Karmøy.

What we deliver to aquaculture
GRP tanks and containers
Aquaculture tanks, smolt tanks, halibut silos and process water tanks. Vacuum-cast in our own production halls — groundwork and fabrication can run in parallel for shorter total project time.
PE/GRE pipe systems for RAS
A problem solver for special products on request — prefabrication of PE and GRE pipe systems gives shorter lead times and better quality control. Complete systems from design through installation.
Steel structures and walkways
Support structures, walkways, platforms and steel piping. For land-based facilities and floating aquaculture installations. EN 1090-EXC2 certified.
Rehabilitation of existing RAS facilities
Pipeliner lines existing pipe systems in older RAS facilities without full replacement. Also handles maintenance and rehabilitation of GRP tanks and containers — regardless of who originally supplied the facility.
Pre-engineering and design
Early-stage engineering for material selection, sizing and system design. Odda Plast contributes from concept study through to completed installation with full documentation.
Ongoing service and maintenance
Framework agreement for ongoing follow-up of GRP tanks, pipe systems and steel structures throughout the facility's service life. Agreed response times. Fixed pricing structure.
On fish health's terms
Do you have an older RAS facility that needs an upgrade?
Pipeliner rehabilitates pipe systems and GRP tanks internally without full replacement — regardless of who originally supplied the facility. Framework agreement available for ongoing follow-up throughout the facility's service life.
Internal lining of existing PE and GRE pipe systems — without full replacement.
Rehabilitation of GRP tanks and containers without replacement. LIDAR/3D condition mapping of pipe networks.
Framework agreement for ongoing maintenance throughout the facility's service life. No supplier lock-in.

Documented deliveries — aquaculture
Photo: Audun DahlEgget ® for Ovum
Closed aquaculture cage in composite, engineered by Ovum and manufactured by Herde Kompositt. Large volumes with low weight and long service life — from production planning and fabrication to marine transport.

Tytlandsvik Aqua
Complete PE pipe system delivered to Tytlandsvik Aqua's land-based aquaculture facility. Large-diameter PE pipe systems — design, fabrication and installation.

Proximar Seafood — Japan
Repair of buried pipes beneath the tanks at a land-based aquaculture facility outside Tokyo — carried out using trenchless methods (No Dig), with no excavation.

Sludge tank, 220 m³
220 m³ welded PE sludge tank delivered to an aquaculture facility — designed, fabricated and shipped by sea to the site.

Structures for aquaculture
KB designs, fabricates and delivers complete steel and aluminium structures: forecastles and davit arms for feed barges, platforms, containers and thermolicer facilities.
Four companies. One integrated delivery.
No interface issues between suppliers. SIGRA coordinates all four disciplines, manages the interfaces and issues a single consolidated invoice — regardless of project scope.
Planning a new build or upgrade of an aquaculture facility?
We offer a site visit and technical review — and present an integrated solution for tanks, pipe systems and steel under a single contract.
Book a meeting