Aquaculture Units

Aquaculture Units Engineered for the Sea. Built for You. NLB pumps are the gold standard in high-pressure water jetting, trusted across industries, including aquaculture. Designed for nonstop performance in harsh marine environments, every NLB aquaculture unit now comes standard with ceramic plungers and sealed packing cartridges, giving you unmatched corrosion resistance, easier maintenance, and longer pump life in the field. These rugged units deliver up to 275 bar (4,000 psi) and 552 lpm (146 gpm), integrating seamlessly with top net cleaning systems. Capable of powering multiple cleaning heads simultaneously, they make quick work of both in-situ and onshore net maintenance. Contact Us What Sets NLB Pumps Apart Developed in close collaboration with net cleaning professionals, our aquaculture units offer operator-focused features like: Corrosion Resistance: Galvanized skids and stainless steel components hold up against saltwater and marine conditions. Ceramic Plunger Advantage: Building on the corrosion resistance, a six-micron finish ceramic offers excellent hardness to minimize wear. The bonds in the ceramic prevent oxidation and corrosion. Sealed packing cartridges prevent seawater infiltration in the plunger well, and the cost-effective 3-piece design allows for easy replacement of worn parts. Real-Time Monitoring: Digital discharge pressure display can integrate seamlessly into the control box for at-a-glance system status. Quiet Operation: Hospital-grade exhaust and sound-attenuated interiors reduce noise impact on fish and nearby communities. Compact & Easily Accessible: Lightweight aluminum enclosure with roll-up doors enables easy access in confined deck spaces. Cleaning/Inspection on Command: Accessory manifold with optional dump valve lets operators instantly stop water flow for fast inspections. Mobile & Maneuverable: Optional integrated fuel tanks improve handling; dolly wheels available for easy transport on floating farms. 25-Micron Filter Bags: Provide effective filtration to protect your pump and cleaning system. External Priming Ports: Allow quick and easy system setup and maintenance. Capable of powering multiple cleaning heads at once and integrating with top net cleaning systems, NLB aquaculture pumps are trusted around the globe for in-situ and onshore net maintenance. Bring Repairs On-Site Working off-site in remote areas demands caution and preparedness. NLB has revolutionized the fish net cleaning market with maintenance kits that save you time, money, and the hassle of returning to port. Our optional maintenance kits come equipped with all the essential components needed to swiftly rebuild the fluid end of your pump. By easily replacing critical parts, you can keep your pump running smoothly without any disruptions. The replaced components can be maintained by your technicians or can be sent to the nearest NLB facility, where our certified technicians will refurbish them to be reused for your future needs. Be prepared for any maintenance challenges with NLB Maintenance Kits! Each Maintenance Kit includes: Complete sets of valves, valve seats, and valve springs Plungers, plunger retainer nuts, collets, packing, backup rings, and throat bushings Packing cartridges All necessary O-rings and seals A protective storage case for convenient and secure storage of kit contents Service & Support: Always nearby, no matter where you are Choosing NLB aquaculture systems means reliable support well beyond delivery. Our expertly engineered units deliver dependable performance, backed by service from our nine branch locations. Our UK branch in Darlington, with its 2,000 m² yard and workshop space, ensures quick response to all your parts and service needs, keeping your operations running smoothly. From equipment servicing to operator training and water jetting demos, NLB provides complete support. With NLB, you’re not just getting advanced aquaculture systems—you’re gaining a committed partner in your success. Count on NLB for unrivaled reliability and support. EnginePumpPhysical SpecificationsFeatures & Options EngineDisplacementFuel ConsumptionPumpPump ControlMax. Flow RateMax. PressurePlungersWeightDimensions (L x W x H)Lifting PointsFilter BagsRoll-Up DoorsSound AttenuationGalvanized SkidRemoveable EnclosureBuilt-In ManifoldExternal Priming PortsIntegrated Fuel TankDolly WheelsIntegrated Control CenterDump Valve 305 SeriesCummins QSL-99 liters40 lph @ 220 bar (3,200 psi)325 SeriesMechanical Pressure Regulator465 lpm (123 gpm) 552 lpm (146 gpm)275 bar (4,000 psi) 207 bar (3,000 psi)Coated Stainless Steel OR Ceramic with six-micron finish4,255 kg (9,380 lbs)3,050 x 1,680 x 1,880 (2,205 mm to top of exhaust)Padeyes & Forklift PocketsLarge 25-MicronIncludedIncludedIncludedIncludedIncludedIncludedOptionalOptionalOptionalOptional$1.00 Aquaculture Units quantity Add to Quote 405 SeriesCummins QSM-1111 liters68 lph @ 275 bar (4,000 psi)325 SeriesMechanical Pressure Regulator552 lpm (146 gpm)275 bar (4,000 psi)Coated Stainless Steel OR Ceramic with six-micron finish4,455 kg (9,820 lbs)3,050 x 1,680 x 1,880 (2,205 mm to top of exhaust)Padeyes & Forklift PocketsLarge 25-MicronIncludedIncludedIncludedIncludedIncludedIncludedOptionalOptionalOptionalOptional$1.00 Aquaculture Units quantity Add to Quote AQ3250Cummins QSB-77 liters38 lph @ 207 bar (3,000 psi)225 SeriesMechanical Pressure Regulator400 lpm (106 gpm)207 bar (3,000 psi)Ceramic with six-micron finish2,905 kg (6,400 lbs)2,565 x 1,525 x 1,730 (2,015 mm to top of exhaust)Padeyes & Forklift PocketsLarge 25-MicronIncludedIncludedIncludedIncludedIncludedOptionalOptionalOptionalOptionalOptional$1.00 Aquaculture Units quantity Add to Quote NLB AQ3250 Compact. Lightweight. All Power. When space is limited but high flow is non-negotiable, the AQ3250 delivers. This compact, lightweight aquaculture unit minimizes deck load and footprint—perfect for tight marine platforms—without compromising on performance. With a flow rate of up to 552 lpm (146 gpm) and pressure up to 275 bar (4,000 psi), the AQ3250 is engineered to outperform in net cleaning operations. It fits easily into existing systems and is light enough to deploy quickly, making it an ideal solution for agile aquaculture operations. $1.00 Aquaculture Units quantity Add to Quote