Sea Water Pumps & River Water Pumps

Made from Duplex 2205 Stainless, the SWD range of Bakerflow are perfect for corrosive liquids such as Sea Water & River Water. Also suitable for a range of acid & alkaline liquids. Conform to En733 (Formerly Din 24255)

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Seawater

Economical, reliable and convenient

Bakerflow SWD Series Sea Water pumps are a complete range of Duplex Stainless Condenser Water centrifugal pumps which follow the same nomenclature as the Standard Water SW Series of the Bakerflow range. Discharge sizes range from 32 to 300mm capable of flows up to 500litres per second. All parts of the pump wet end are in material suitable for sea water pumping. Hard faced mechanical seals fitted over a duplex stainless sleeve ensures the shaft is protected from pitting over the life of the pump. Casing, Impeller and Stuffing Box Backplate are all manufactured from cast Duplex Stainless 2205. Wear Rings are fitted as standard.

WE CAN HELP YOU CHOOSE THE RIGHT Sea & River Water Pumps FOR YOUR PROJECT

Duplex pumps are suitable for a range of liquids, but in HVAC are mostly utilised for Harbour Water Heat Exchange Condenser Water systems. Masterflow provide the complete pumpset including Hot Dip Galvanised (HDG) base plate, electric motor with spacer coupling and stainless coupling guard. Pumps are Back Pull-Out design with a modular bearing pedestal configuration with common parts across various Models thus optimising interchangeability throughout the range.

case study 1

Case Study

UNSW Science and Engineering Building

The Science and Engineering Building spans 10 levels and provides 24,500 square metres of state-of-the-art teaching and research space and is designed to share facilities with the adjacent Hilmer Building.

View the complete project

Our engineers and sales consultants will generate performance curves with full technical data such as electrical loadings, spatial requirements, and pipeline details. Instruction Manual with full installation and maintenance explanations will be supplied prior to delivery. Service and warranty agreements also available upon completion of commissioning. Because of the substantial costs of these specialised pumps, it is important to give Masterflow as many details as possible. Ask for our Detailed Checklist of Required Information to assist you in gathering all the essential information. If your plant room is existing, and you want a direct replacement, our sales consultant will visit site and conduct a full review to make a submission that will reduce the pipework changes, allowing for a streamlined installation.

 

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Our engineers and sales consultants will generate performance curves with full technical data such as electrical loadings, spatial requirements, and pipeline details. Instruction Manual with full installation and maintenance explanations will be supplied prior to delivery. Service and warranty agreements also available upon completion of commissioning. Because of the substantial costs of these specialised pumps, it is important to give Masterflow as many details as possible. Ask for our Detailed Checklist of Required Information to assist you in gathering all the essential information. If your plant room is existing, and you want a direct replacement, our sales consultant will visit site and conduct a full review to make a submission that will reduce the pipework changes, allowing for a streamlined installation.

 

In addition to the Pump & Motor combination for sea water applications, Masterflow can also assist with associated equipment such as Heavey Duty Strainer, Duplex Stainless Valves and Special automatic Diaphragm priming pumps.

Decades of local experience in projects around Sydney Harbour and Brisbane River gives Masterflow the edge with what really works when it comes to Sea water recirculation applications. See our King Street Wharf Upgrade for a relevant case study to this product.

Frequently asked Questions

For sea water applications, 316 Cast Stainless cast stainless steel (CF8M / AISI 316) provides as good resistance as ZFB, but not as durable as Marine bronze or Duplex 2205 Stainless material. On average, Overhaul of pumps are required every 4 years for Sea Water pumps that are made from 316 stainless.

The best materials for sea water is Duplex 2205 stainless or Nickel Aluminium Bronze (BS1400 AB2) Because of the increasing availability, Duplex is becoming more the material of choice in sea water condenser water applications. It is also less harmful to the environment during the manufacturing process.
Due to the tidal condition of sea water, there is a strong potential for temporary cavitation to occur. Add to this the accumulation over time of marine life on the inlet strainers and cavitation become more acute as the strainers become partially blocked.
: Intake design is always a significant factor in centrifugal pump installation and especially in sea water applications. Careful review of the surrounding environment and activities can impact the suction conditions of pump installations.
Yes, in most cases the Standard Maintenace Procedure for sea water pumps will include the routine removal and pressure washing of the inlet strainers. This is unavoidable due to the presence of marine life unless heavy duty motorised strainers are included as part of the installation. See article on Kinney Strainers For Marine Pump Applications
As a temporary solution, special coatings correctly applied to cast iron substrates can provide a good option so long as the temporary installation is within 2 years maximum. As a long-term solution, coatings are inadequate, and will end up costing the building owner a lot more in replacement parts, downtime, disruptions, and afterhours labour rates.

ENGINEERED SOLUTIONS FOR PUMPS, TANKS, CHILLERS, FILTRATION, VALVES & CONTROLS. Get a quote or contact us today

Masterflow is and has been a trusted name among Australia’s HVAC suppliers for over 20 years. We supply a wide range of pump types and can provide the ideal solution to the many and varied fluid requirements that face the industry. We pride ourselves on remaining agile, innovative, and having fast turn arounds. We are local! All our pumps are locally designed, built and manufactured here in Australia.

Our experienced team are here to help you. Please call us on 02 9748 2022 or leave us a message on our contact form.
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