Aquaculture Units

Aquaculture Brochure

NLB pumps are the gold standard in high-pressure water jetting, designed to meet the most demanding requirements across industries—including aquaculture. Built for durability and long-lasting performance, our pumps excel in challenging marine environments, delivering up to 275 bar (4,000 psi) and 800 lpm (212 gpm) of powerful flow. They seamlessly integrate with leading head cleaning systems and can operate multiple cleaning heads at once, ensuring rapid and efficient net cleaning both in-situ and onshore.

Our close collaboration with net cleaning industry leaders has allowed us to engineer pumps that optimize both efficiency and user experience. These purpose-built pumps include innovative features that set them apart, including:

  • Roll-up doors for easy access in tight spaces
  • Heavy-duty pump capable of 275 bar (4,000 psi) and up to 800 lpm (212 gpm)
  • 25-micron filter bags for effective filtration
  • Corrosion-resistant stainless steel components
  • Galvanized skid for enhanced durability
  • High-performance marine-grade engines
  • Removable aluminum enclosure
  • External priming ports for added convenience

NLB pumps are purposefully crafted with the end user and demanding working environments in mind, providing unmatched reliability and performance.

NLB AQ3250
The NLB AQ3250 aquaculture unit sets a new benchmark for durability and performance in challenging marine environments. Building on the success of previous models, the AQ3250 features advanced upgrades like ceramic plungers and sealed packing cartridges, offering exceptional corrosion resistance and extended lifespan. The unique three-piece ceramic plunger design simplifies maintenance by allowing you to replace only the worn part, reducing costs. Compact and lightweight, this pump minimizes deck load and space requirements while delivering efficient, reliable performance. Easily integrated into existing net cleaning systems, the AQ3250 gives you a competitive edge in net maintenance.

Ceramic Plunger Benefits

  • Chemical bonds in ceramic prevent oxidation and corrosion
  • Sealed packing cartridges prevent seawater infiltration in plunger well
  • Cost-effective 3-piece design allows for easy replacement of worn parts
  • Ceramic material with six-micron finish offers excellent hardness to minimize wear
Contact Us

BRING REPAIRS ON-SITE
Remote work demands readiness and efficiency. NLB’s maintenance kits revolutionize fish net cleaning by eliminating the need to return to port, saving you time and money.

Our maintenance kits come fully equipped with everything needed to rebuild your pump’s fluid end right on-site. Swiftly replace critical components and keep your pump running without disruption. Refurbish worn parts on-site or send them to the nearest NLB facility for expert reconditioning—ready for future use.

Stay ahead of maintenance challenges with NLB Maintenance Kits, designed to keep you operating at peak performance.

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 it’s 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.

205 series 305 series 405 series 505 series AQ3250
Engine Cummins QSB-7 Cummins QSL-9 Cummins QSM-11 John Deere JD6135 Cummins QSB-7
Displacement 7 liters 9 liters 11 liters 13.5 liters 7 liters
Fuel Consumption 36 lph @ 275 bar (4,000 psi) 40 lph @ 220 bar (3,200 psi) 68 lph @ 275 bar (4,000 psi) 85 lph @ 275 bar (4,000 psi) 39 lph @ 207 bar (3,000 psi)
Pump 225 SERIES 325 SERIES 325 SERIES 605 SERIES 225 SERIES
Pump Control Mechanical pressure regulator Mechanical pressure regulator Mechanical pressure regulator Mechanical pressure regulator with dump valve Mechanical pressure regulator
Max. Flow Rate 330 lpm (87 gpm) 465 lpm (123 gpm) | 552 lpm (146 gpm) 552 lpm (146 gpm) 800 lpm (212 gpm) 400 lpm (106 gpm)
Max. Pressure 275 bar (4,000 psi) 275 bar (4,000 psi) | 207 bar (3,000 psi) 275 bar (4,000 psi) 275 bar (4,000 psi) 207 bar (3,000 psi)
Plungers Coated Stainless Steel Coated Stainless Steel Coated Stainless Steel Coated Stainless Steel Ceramic with six-micron finish
Additional Specifications
Weight 2,905 kg (6,400 lbs) 4,255 kg (9,380 lbs) 4,455 kg (9,820 lbs) 6,460 kg (14,240 lbs) 2,905 kg (6,400 lbs)
Dimensions (L x W x H) 2,565 x 1,525 x 1,730 (2,015 mm to top of exhaust) 3,050 x 1,680 x 1,880 (2,205 mm to top of exhaust) 3,050 x 1,680 x 1,880 (2,205 mm to top of exhaust) 3,860 x 2,185 x 2,921 (1,885 mm to top of exhaust) 2,565 x 1,525 x 1,730 (2,015 mm to top of exhaust)
Lifting Points Padeyes and forklift pockets Padeyes and forklift pockets Padeyes and forklift pockets Padeyes and forklift pockets Padeyes and forklift pockets

Have Questions?

Reach Out to Our Expert Team Today!

At NLB, we're dedicated to assisting you. If you're uncertain about which product is best for your application, our team is ready to help you find the perfect solution. If we need to customize a product to fit your specific needs, we're prepared to do so! Simply give us a call or fill out the form, and one of our experts will be in touch with you shortly.

(800)-441-5059














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