The AlfaNova is the first plate heat exchanger in the world to be made completely of stainless steel – made possible by the unique active diffusion bonding technology patented by Alfa Laval.
An AlfaNova fusion-bonded heat exchanger consists of corrugated stainless steel plates, a frame plate and a pressure plate. The heat transfer plates in the plate pack are bonded together using AlfaFusion technology, a unique method of bonding stainless steel components that is an Alfa Laval patent.
The brazed design holds the plate pack together internally with contact points, doing away with any need for external plate frames at design pressures of up to 16 bar. Distributing the load across many separate contact points provides excellent resistance to pressure fatigue. And because all the key parts are made of the same material, this design is thermally efficient as well as being shock-proof and having a mechanical strength fully equivalent to any welded counterpart.
The heat exchanger works on the basis of two media at different temperatures flowing on either side of thin corrugated stainless steel plates stacked on top of each other.
The counter-current flow makes it possible to extract heat efficiently even when there are only extremely small differences between the temperatures of the hot and cold media. This results in notable savings on energy costs.
Alfa Laval is today a world leader within the key technology areas of heat transfer, separation and fluid handling. Our company was founded on a single brilliant invention and innovation remains at the heart of everything we do.