Alfa Lavals New Tantalum Range Minimizes Lifecycle Costs for Heat Exchangers in Highly Corrosive Applications
March 6, 2014 - Pune, Maharashtra , India
Unique surface treatment
Tantalum is one of the most corrosion-resistant metals, but it’s also very costly, making solid-tantalum heat exchangers extremely expensive.
The heat exchangers in Alfa Laval’s new tantalum range are stainless steel heat exchangers that have undergone a unique treatment where a thin layer of tantalum is metallurgically bonded to all surfaces exposed to corrosive media. The result is maximum corrosion resistance and mechanical stability at a low investment cost, making the technology affordable to a wide range of applications.
Designed for the toughest conditions
The new tantalum range has been specifically developed for use with hot, highly corrosive liquids. The tantalum surface allows Alfa Laval’s new heat exchangers to be used with most corrosive media at temperatures up to 225°C (437°F). Unlike many high-grade alloys they can be used with mixed media and at variable concentrations.
Minimal maintenance costs
The high chemical resistance and robust design minimizes service needs. The only required maintenance is a cleaning-in-place procedure if the heat exchanger is operating in a fouling duty. The highly turbulent flow helps reduce fouling and makes cleaning-in-place procedures more effective.
The steel core gives Alfa Laval tantalum heat exchangers high mechanical stability. The robust design gives them much greater resistance to thermal shock than glass, silicon carbide and graphite heat exchangers.
Compact size and small footprint
The new Alfa Laval tantalum heat exchangers are based on plate technology. Thanks to a highly turbulent flow they have a significantly higher thermal efficiency than a shell-and-tube.
When comparing the efficiency of a shell-and-tube made of non-metals, such as graphite, glass or silicon carbide, and an Alfa Laval tantalum heat exchanger the different heat conductivity and required thicknesses of the materials must be considered. By combining superior flow characteristics with the improved heat transfer properties, the new tantalum heat exchangers provide up to 100 times higher thermal efficiency than non-metal shell-and-tube units.
This results in Alfa Laval tantalum heat exchangers having a much smaller footprint than designs based on graphite, glass or silicon carbide, thereby minimizing installation costs and allowing plant owners to expand capacity on existing floor space.
For more information on all the superior benefits of Alfa Laval’s new tantalum heat exchangers please visit: www.alfalaval.com/tantalum.
About Alfa Laval
Alfa Laval is a leading global provider of specialized products and engineering solutions based on its key technologies of heat transfer, separation and fluid handling.
The company’s equipment, systems and services are dedicated to assisting customers in optimizing the performance of their processes. The solutions help them to heat, cool, separate and transport products in industries that produce food and beverages, chemicals and petrochemicals, pharmaceuticals, starch, sugar and ethanol.
Alfa Laval’s products are also used in power plants, aboard ships, in the mechanical engineering industry, in the mining industry and for wastewater treatment, as well as for comfort climate and refrigeration applications.
Alfa Laval’s worldwide organization works closely with customers in nearly 100 countries to help them stay ahead in the global arena.
Alfa Laval is listed on Nasdaq OMX, and, in 2012, posted annual sales of about SEK 29.8 billion (approx. 3.5 billion Euros). The company has today about 16,400 employees.
Photo Caption: Alfa Laval heat exchangers designed for the toughest conditions
Source: Business Wire India