With over 20 years of experience providing pumps and HVAC system components to customers throughout Australia and New Zealand, we know how important it is to choose the right pump for the application and setting. Seawater heat rejection systems for air conditioning offer a number of benefits and also pose some unique challenges. They use less energy for cooling but exposure to salt water means technicians have to adhere to strict requirements when selecting materials. At Masterflow, our technicians don’t leave anything to chance. When you work with us, you know you’re getting real solutions by real experts.
Why Use Seawater?
The first reason you might choose a salt water system over other options is the availability of seawater. If your system is in a coastal area, the ready access to seawater makes it an obvious choice. Another crucial benefit of seawater is the lower energy costs associated with cooling. Typically, the pumps used in HVAC systems draw from a town water supply. Before it can be used, this water first needs to be cooled from around 30° to 6°C. In most settings, seawater is already naturally cool, significantly reducing the energy required to lower the temperature and resulting in decreased costs and increased energy efficiency.
Bakerflow Seawater Pumps
As with any HVAC system, your choice of pump can make or break your project. Our range of Bakerflow Seawater Pumps are ideal for systems using seawater and other corrosive acidic and alkaline liquids. These quality-built salt water pumps include hard faced mechanical seals fitted over a duplex stainless sleeve to protect the shaft from pitting over its lifetime. Discharge sizes range from 32 to 300mm and they are capable of flows of up to 500 litres per second.
Why We Use 2205 Duplex Stainless Steel for Our Seawater Pumps
Our seawater pumps are made from 2205 Duplex Stainless Steel. This material gets the name ‘duplex’ from having a micro structure that combines the benefits of ferrite and austenite stainless steel; specifically, a high resistance to erosion, corrosion, and cracking, all of which are of paramount importance when choosing a pump that will be in contact with seawater. In addition, 2205 Duplex is unsusceptible to intergranular pitting, as well as crevice corrosion.
Not only does this material boast unrivalled efficacy when it comes to corrosion resistance, it is also roughly twice as strong as regular ferritic and austenitic steel. The combination of low nickel content and unmatched strength lowers the costs of both manufacturing and shipping.
Other Products to Consider When Designing Seawater Pump Systems
Choosing the right pump is crucial, but every element of your system needs to be considered in relation to the whole to offer the greatest efficiency and longevity. Heat exchangers need to be made of titanium rather than stainless steel. For pipework, poly pipe is chosen over steel or copper. The people at Masterflow can help you when it comes to selecting your materials and components, generating performance curves with full technical data such as electrical loadings, spatial requirements, and pipeline details.
Why Choose Masterflow?
For over two decades, Masterflow has used our expertise to bring our clients’ ideas off the page and into the real world. Our engineers and service people have brought to life intricate and prestigious projects using saltwater systems, including many around Sydney Harbour. Our extensive experience and proven track record of working with seawater heat rejection systems makes us the natural choice for projects of this nature.
Contact Us Today
Our technicians are always ready to talk and share their expertise. To contact a friendly Masterflow team member today about your next saltwater pump project, visit the contact section of our website and get in touch by phone or email.