At the Heart of the Largest Smolt Facility in Norway

Nordlaks is a Norwegian absolutely built-in company that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has lately completed the building of a new smolt facility for fish up to 1 pound at Innhavet in Hamarøy municipality. pressure gauge วัด แรง ดัน (recirculating aquaculture system) fish farm is the largest of its type in Norway, with a special focus on smolt welfare. The land-based facility has state-of-the-art gear for optimal biosecurity and sustainability. At the guts of the RAS process, all recirculation pumps were equipped by Sulzer.
Fifty AHLSTAR and BE recirculation pumps (continuous duty) in water therapy loops. The dry-installed single-stage overhung pumps are outfitted with semi-open impellers and single mechanical seals.
Five VUPX-0402 (602,312 gallons per hour at 10 toes of head) submersible propeller pumps (intermittent duty) for the emptying of fish tanks.
The Innhavet RAS plant has thirty-four fish tanks of various capacities (92,000 to 264,000 gallons) in 5 separate major sections. Each section is independent from the others and consists of its own full water remedy system in a semi-closed loop (98 p.c recirculation plus 2 % make-up water). The brackish water from the fish tanks first flows by gravity to a rotating drum filter for the removal of the primary suspended solid particles. It then falls into an MBBR (moving bed biofilm reactor) for TAN (total ammonium nitrogen) discount. After passing through a countercurrent degasser for the stripping of nitrogen and carbon dioxide, the treated water is finally pumped to some head tanks, prior to oxygenation and return to the fish tanks.
In every fish tank, the water is totally renewed each half an hour. The well-being of the smolts is very depending on a continuing move of water via the ability. The reliability of the recirculation pumps is, subsequently, of paramount importance.
High general vitality efficiency of the RAS plant means a greater environmental footprint and decreased operating prices. Consequently, the primary elements of the water therapy loops should have top-class efficiencies, particularly the recirculation pumps.
As a long-term supplier of equipment (pumps and turbines) to different Nordlaks vegetation, Sulzer was concerned at an early stage of the new challenge. In collaboration with the Momek Group, a large industrial service supplier in Scandinavia, the pumps have been carefully chosen, not solely to fulfil the requirements through the guarantee period, but to run optimally and economically during the entire lifetime of the site. For the recirculation of the brackish water, fifty AHLSTAR and BE process pumps in duplex materials have now been installed and are working repeatedly. In addition, 5 VUPX submersible propeller pumps are used on intermittent duty when the fish tanks are emptied through the switch of smolts.
New Nordlaks fish farm in Innhavet, Norway.
By selecting to work with a trusted associate, the consumer made sure to get quick and everlasting technical assist, in addition to the most effective merchandise. The recirculation pumps have the next major advantages:
Extremely high hydraulic efficiencies that by far exceed the strictest vitality regulations for water pumps. This means big power financial savings over time and smaller complete cost of possession, duty points near BEP (best efficiency points), low rotation speeds, and inflexible baseplates grouted in concrete. The pump items are working easily with minimized vibration levels. Superior-grade materials is used for all wetted parts. For the selection of pump material involved with brackish water, the long-term perspective favored duplex stainless-steel rather than 316SS. Duplex steels have better design energy than austenitic stainless steels, as nicely as higher corrosion, abrasion, and pitting resistance. In the end, maintenance prices and the risk of downtime are decreased.
Sulzer is a recognized supplier in the fish farm market, with progressive and proven pumping, mixing, and aeration options, and provides highly energy-efficient merchandise with low life-cycle prices and the smallest attainable environmental footprint. As a cloth specialist in a extensive range of fresh water, brackish water, seawater, and brine functions, we will provide pumps in cast iron, 316 stainless steel, duplex, super duplex, SMO, and so forth. .
Water therapy system process chart.
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