Centrifugal Pump - NSA | DESMI - Make life flow Go to main content Segments Marine Explore All Solutions Products Applications All Applications Ballast Pumps Ballast Stripping Pumps/Ejectors Base Oil Pumps Bilge Pumps Boiler Feed Pumps Brine Pumps Drill Water Pumps Emergency Fire Pumps Fresh Water Cooling Pumps Inert Gas Cooling/Scrubber Pumps Lubrication Oil Pumps Main Engine Preheating Pumps Seawater Cooling Pumps Sewage Pumps Sludge/Dirty Oil Pumps Ballast Water Treatment Explore Ballast Water Treatment Products & Solutions Vessel Types BWMS Service BWMS Training IoT and BWMS Centrifugal Pumps Energy Saving System - OptiSave™ Explore OptiSave™ OptiSave™ Savings Simulator Potential OptiSave™ savings IoT and OptiSave™ Engine Room Pumps Fire fighting system - FineFog™ Magnetic Drive Pumps Onboard Carbon Capture Scrubber Pumps Explore Scrubber Pumps Scrubber Pump Selection App Triple Screw Pumps Methanol Pumps Harbour Pumps Automation New Green Solutions Explore All Solutions Products Alternative Fuel Pumps Carbon Capture and Storage Cargo Pumps Magnetic Drive Pumps Power-to-X Aquaculture Explore All Solutions Products UV Water Treatment System Comparing CIP and Mechanical Wipers IoT and Aquaculture From Insight to Impact Aquaculture Pumping Insights from DESMI’s Senior Application Manager, Simon Anthes Why Correct Pump Piping Matters Designing Water Intakes Correctly NPSH – The Most Misunderstood Pump Parameter Static Head, Dynamic Head and the Importance of the Best Efficiency Point Why Electric Motor Sizing Matters for Frequency Converter Operation Defense Explore All Solutions Products Naval Applications Ballast Water Treatment Diesel-Driven Emergency Fire Pumps Fire fighting system - FineFog™ Helicopter Refuelling Systems Hydrophore Units Navy Energy Saving System - OptiSave™ Shock Rated Pumps Replenishment At Sea Cargo Pumps Automation Industry & Utility Explore All Solutions Products Applications All Applications Chemical Applications Energy Applications Other Applications List of Liquids Automation Internal Gear Pumps - ROTAN® Centrifugal Pumps Products & Solutions All Products Pumps & Pumping Solutions Alternative Fuel Pumps Cargo Pumps Centrifugal Pumps Engine Room Pumps Harbour Pumps Magnetic Drive Pumps Methanol Pumps ROTAN® Gear Pumps Scrubber Pumps Shock Rated Pumps Triple Screw Pumps Various Products & Solutions Automation Ballast Water Management Systems Helicopter Refueling Systems Fire-Fighting System OptiSave™ Spare Parts Kits Customer Support Manuals All Manuals Centrifugal Pumps ROTAN® Pumps Sprinkler Pumps Spare Parts Waste Water Various Selection Programs All Selection Programs Download ROTAN® Selection Program Download Centrifugal Pumps Selection Program (WinPSP) Scrubber Pump Selection App Spare Part Kit Finder For Distributors Pump-Flo Selection Software (US Only) Approvals & Certificates All Approvals & Certificates Certificate of Assurance - Cyber Essentials Plus Brochures Videos Various All Various Annual Reports General Terms & Conditions Procurement Policy Modern Slavery Act (English) Engineering Explore Engineering BWMS Engineering After Sales & Service Genuine Spare Parts & After Sales Service Order Spare Parts DESMI 48 - Fast Track Worldwide Service Gear pumpe Serviceeftersyn Centrifugalpumpe Serviceeftersyn Booster Serviceeftersyn Sprinkler Diesel Serviceeftersyn Sprinkler El Serviceeftersyn Spildevandspumpe Serviceeftersyn Centrifugalpumpe Idriftsættelse Serviceeftersyn Intelligent overvågning Commissioning Pumpeservice.dk (NY) Testing Services Contact About DESMI History Detailed version Short version UN SDGs Newsletter Organisation Leadership Team - DESMI Group Offices & Locations Canada China Denmark France Germany Greece India Indonesia Italy Korea Nigeria Norway Poland Singapore Sweden Tanzania The Netherlands United Arab Emirates United Kingdom United States Testbed facilities Testbed - DESMI Headquarters Testbed - DESMI India Testbed - DESMI Inc. 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Happy! 110 DESMI Pumps Supporting Salmon Evolution Phase 1 A Mix of Easy Operation and Superb Support A Smooth District Cooling Operation Palm Oil Bulking Station chooses the DESMI ROTAN® pump Sirius Shipping installs CompactClean OptIMO BWMS on 9 vessels High efficiency pumps for Aalborg District Heating ROTAN® ED Pumps for Paint Application: Resin Handling Energy Savings on Board Aurora Energy Savings Exceeding Expectations OptiSave for SINOKOR & WAH KWONG vessels A Reliable Production due to almost no Pump Maintenance Impressive Pump Results Efficient Pump System for Heavy Loading and Unloading Service on 18 Seawater Pumps District Heating Pumps for Gdansk Great Satisfaction with Installation of New Pump Drainage of Sewage from Fanø to Esbjerg Stable Operation, Surveillance, and Quick Service Pumping Station at the Danish Wadden Sea Stable Operation, High Circulation and Budget Savings Energy-efficient Cooling System for Musikkens Hus (House of Music) Efficient Bronze Pumps for Nyborg Swimming Facility Easy Access to Savings on Board Ships DESMI Pumps for HVAC in Sharjah, UAE HVAC system pumps for Lotte Centre in Hanoi, Vietnam Quick Bitumen Unloading at NCC Effective Pump Solutions for Haraldslund Swimming Centre Southeast Pump Specialists - Distributor Success District Heating for HOFOR Kløvermarken Fast Service from DESMI helps Norwegian Waterpark Road construction company chooses ROTAN® asphalt and fueling Pumps Energy Efficient Pumping Solutions for Solar District Heating District Cooling Pumps for Palazzo Versace Hotel, Dubai FineFog Fire-Fighting System for Algoma Low Maintenance Pumps for Kinnerton Pumps for Free to Lighthouse Shipholding AS 30 years trouble free operation at Zeelandia Petrofac - FPF1 Seawater Lift Pumps OptiSave for sea and freshwater pumps onboard "Johann Jacob" District Cooling for the Abu Dhabi National Exhibition Centre Pump Contract for MARS Tanker - Logistic Support Ship ROTAN® ED for the Painting Industry Long-life Oil Pumps – Ditlev Reefer High Quality Pumps for Den Breejen Shipyard Many years of great service to Cammell Laird Pumps without breakdown for Campco Chocolate DESMI Pumps on board frigates in the Royal Danish Navy Environmentally Friendly Fuel Installations Queen Elizabeth Class Energy Efficient Pump Solutions in Waste-to-Energy Facility HOFOR Greater Copenhagen Utility DESMI Supply to Data Centre in Amsterdam Doosan Heavy Industry - District Cooling, Korea Dubai Metro - District Cooling, UAE DESMI NSLH pump for the transmission system Tianwan 3&4 Phase Nuclear Power Project Huntsman looking for a better solution Aviation Fuel Transfer by the U.K Armed Forces Dan-Balt A/S - Pan European Terminals PLC DESMI ROTAN® Pump in ABS Application Magnetic Driven Pumps in Molten Sulphur Service Sound Refining, Inc. of Tacoma, Washington Novozymes - ONLY had good experiences S. 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A leading paint manufacturer Polyurethane Foam/Isocyanate ROTAN® magnetically driven pumps Pump Geared for Thin Film Evaporator The reliable solution for unsaturated Polyester Resin District Cooling Project – NUON Energy Harbin Daoli - District Heating, China CompactClean Installation on Board PROVIDANA Sanfu Yard 3rd May Shipyard Croatia Maersk & COSCO Zhoushan Shipyard Fast Pace Turnkey Solution for Nordana Gitte Henning DFDS Regina Seaways - CompactClean Ballast Water treatment system installation News & Media DESMI on Social Media DESMI Media Kit Subscribe to DESMI Newsletter DESMI Ro-Clean.com About DESMI Career Customer Stories News & Media DESMI Ro-Clean.com Segments Marine Explore All Solutions Products Applications All Applications Ballast Pumps Ballast Stripping Pumps/Ejectors Base Oil Pumps Bilge Pumps Boiler Feed Pumps Brine Pumps Drill Water Pumps Emergency Fire Pumps Fresh Water Cooling Pumps Inert Gas Cooling/Scrubber Pumps Lubrication Oil Pumps Main Engine Preheating Pumps Seawater Cooling Pumps Sewage Pumps Sludge/Dirty Oil Pumps Ballast Water Treatment Explore Ballast Water Treatment Products & Solutions Vessel Types BWMS Service BWMS Training IoT and BWMS Centrifugal Pumps Energy Saving System - OptiSave™ Explore OptiSave™ OptiSave™ Savings Simulator Potential OptiSave™ savings IoT and OptiSave™ Engine Room Pumps Fire fighting system - FineFog™ Magnetic Drive Pumps Onboard Carbon Capture Scrubber Pumps Explore Scrubber Pumps Scrubber Pump Selection App Triple Screw Pumps Methanol Pumps Harbour Pumps Automation New Green Solutions Explore All Solutions Products Alternative Fuel Pumps Carbon Capture and Storage Cargo Pumps Magnetic Drive Pumps Power-to-X Aquaculture Explore All Solutions Products UV Water Treatment System Comparing CIP and Mechanical Wipers IoT and Aquaculture From Insight to Impact Aquaculture Pumping Insights from DESMI’s Senior Application Manager, Simon Anthes Why Correct Pump Piping Matters Designing Water Intakes Correctly NPSH – The Most Misunderstood Pump Parameter Static Head, Dynamic Head and the Importance of the Best Efficiency Point Why Electric Motor Sizing Matters for Frequency Converter Operation Defense Explore All Solutions Products Naval Applications Ballast Water Treatment Diesel-Driven Emergency Fire Pumps Fire fighting system - FineFog™ Helicopter Refuelling Systems Hydrophore Units Navy Energy Saving System - OptiSave™ Shock Rated Pumps Replenishment At Sea Cargo Pumps Automation Industry & Utility Explore All Solutions Products Applications All Applications Chemical Applications Asphalt & Bitumen Chocolate Oil Blending Isocyanate Paint & Ink Pulp & Paper Soap & Detergents Sugar & Molasses Energy Applications Data Center District Heating District Cooling Power Generation HVAC Other Applications Desalination Landbased Carbon Capture Leisure Industry Waste Water List of Liquids Automation Internal Gear Pumps - ROTAN® Centrifugal Pumps Products & Solutions All Products Pumps & Pumping Solutions Alternative Fuel Pumps Cargo Pumps Centrifugal Pumps Engine Room Pumps Harbour Pumps Magnetic Drive Pumps Methanol Pumps ROTAN® Gear Pumps Scrubber Pumps Shock Rated Pumps Triple Screw Pumps Various Products & Solutions Automation Ballast Water Management Systems Helicopter Refueling Systems Fire-Fighting System OptiSave™ Spare Parts Kits Customer Support Manuals All Manuals Centrifugal Pumps ROTAN® Pumps Sprinkler Pumps Spare Parts Waste Water Various Selection Programs All Selection Programs Download ROTAN® Selection Program Download Centrifugal Pumps Selection Program (WinPSP) Scrubber Pump Selection App Spare Part Kit Finder For Distributors Pump-Flo Selection Software (US Only) Approvals & Certificates All Approvals & Certificates Certificate of Assurance - Cyber Essentials Plus Brochures Videos Various All Various Annual Reports General Terms & Conditions Procurement Policy Modern Slavery Act (English) Engineering Explore Engineering BWMS Engineering After Sales & Service Contact Global Chinese Danish Dutch French German Italian Korean Norwegian Bokmål Polish Spanish Swedish Global Chinese Danish Dutch French German Italian Korean Norwegian Bokmål Polish Spanish Swedish Home Products & Solutions Library NSA Centrifugal Pump NSA Centrifugal Pump Close coupled self-priming NSA centrifugal pump   The NSA Close coupled self-priming centrifugal pump is a totally renewed design based on the original “K&R” models. However fully replaceable with former types, in dimensions as well as capacities.   The compact pumps are simple in design, consist of few parts, and will thus reduce your costs.This of course also means easy maintenance.     Request Quote Product information Bilge pump Ballast Pump General service pump Emergency fire pump Cooling water pump   On basis of 50 years of experience in the production of self-priming pumps we produce a pump series that meets the future demands for economical and reliable pumps.   Design Features Open impeller, exchangeable wear plate, standard stainless steel shaft and nonleaking mechanical shaft seal. Materials Cast iron and bronze, materials are available. Technical data Technical data Nominal diameter (DN) 50 to 80 Flow rate - 50 Hz Up to 70 m³/h (300 US gpm) Head Up to 50 m (160 ft) Pressure Up to 12 bar (170 psi) Temperature Up to 140°C (284°F) Motor Standard and EX motors VFD Direct or Bulkhead/Wall-mounted     Technical specifications   Type NSA 50-200 NSA 80-250 Pipe connections 2" suction/discharge 3" suction/discharge Capacity 10-50 m 3 /h 10-85 m 3 /h Total head 10-50 mWc 10-55 mWc Suction head 8 mWc 7 mWc Range NSA 50-200 in close-coupled  design with electric motor  4-5,5-7,5 kW at 2950 RPM. NSA 80-250 in close-coupled  design with electric motor  4KW at 1450 RPM, and 11 kW at 2950 RPM.   Pump curves Pump curves PDF   Pump curve   JPG   Pump curve Drawings Drawings 3D DRAWINGS   NSA 50 200 9 A12 DWG IGS STP       NSA 80 250 B 10 A12 DWG IGS STP Manuals Manuals NSA (T1493) English English Russia German Download Brochures Brochures NSA English English American Dutch Download MORE BROCHURES Spare parts DESMI AFTER SALES SPARE PARTS Find Your Kit Pump selection programs Selection programs Find curves for existing pumps, get GA drawings for initial designs and compare efficiency, motor power, NPSH and other data to find the right pump. Download Selection Programs DESMI Centrifugal Pumps The range of centrifugal pumps is made to meet the requirements of a wide array of different applications. Be it district heating, cooling, HVAC, fire-fighting or perhaps pumps for the engine room of a maritime vessel, a centrifugal pump is often the ideal choice. DESMI's centrifugal pumps are characterised by high-level efficiency and low NPSH values. Our vertical pumps require minimal space and provide easy access for maintenance of the pump's rotating parts. Click here to learn more Global Contacts DESMI is a global company Find address and contact information of our global locations Contact Newsletter Sign up for our newsletter and we'll send you the latest headlines directly to your inbox. DESMI A/S Tagholm 1 DK-9400 Nørresundby +45 9632 8111 desmi@desmi.com Service Hotline 24/7/365 +45 9632 8110 Quick Links Annual Reports Approvals & Certificates UN SDGs DESMI Blog History General Terms & Conditions Whistleblower Portal Follow us Facebook LinkedIn Youtube Instagram Newsletter CVR NO.: 34086796 Copyright © 2026 DESMI A/S All rights reserved Privacy Policy Notice and Takedown Policy Cookies