Exotic options for AlfaRex
15 Jan 2000
Alfa Laval Thermal's revolutionary all-welded plate heat exchanger, AlfaRex, is now available in a range of alloys carefully selected to enable it to handle aggressive materials such as H2SO4, oleum and solutions with a high chloride content.
Since its introduction two years ago, the AlfaRex has made significant inroads into the high temperature and pressure duties traditionally handled by shell-and-tubes. Its gasket-free design and flexible construction are said to provide a unique combination of thermal efficiency, compact size and reliability. Now it can be supplied in 254SMO and 316 stainless steel, titanium, Pd titanium, alloy C-276 and nickel.
The titanium and palladium/ titanium units are for use in processes involving NaCl, and other solutions with a high chloride content, at temperatures above 150 degreesC where shell-and-tubes would traditionally be used. Nickel units will be used to heat, cool, interchange or evaporate NaOH at temperatures to 150 degreesC, while alloy C-276 has been specified for duties involving H2SO4 and oleum.
According to Alfa Laval Thermal's md Nish Patel, `our new AlfaRex materials will enable us to supply units for applications which involve temperatures or liquids that are beyond the capabilities of our standard, gasketted plate heat exchangers. We expect a whole new area of potential uses to open up over the coming year.'
276 on enquiry card
