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| AlfaNova 14, 27, 52 & 76 - Fusion-brazed Plate Heat Exchangers |
General information AlfaNova is a completely new type of plate heat exchanger (PHE), the world’s first PHE made of 100% stainless steel. It is based on Alfa Laval’s new revolutionary technology, Alfa Fusion, the art of joining stainless steel components. AlfaNova heat exchangers are well suited in applications which put high demand on cleanliness, applications where ammonia is used or applications where copper or nickel contamination is not accepted. Its high resistance to corrosion makes it both hygienic and environmentally friendly. It is extremely compact compared to its capacity to withstand great strains in demanding heat transfer applications. Applications Within Refrigeration: - - Oil cooler
- - Condenser
- - Evaporator
- - Economizer
- - Desuper heater
- - Absorption systems
Other main applications: - - Domestic hot water heater
- - Process cooling
- - Hydraulic oil cooling
- - Laser cooling
- - Hygienic/sanitary
- - Water/water cooling & heating
Working principles The heating surface consists of thin corrugated metal plates stacked on top of each other. Channels are formed between the plates and corner ports are arranged so that the two media flow through alternate channels, always in counter-current flow. The media are kept in the unit by a bonded seal around the edge of the plates. The contact points of the plates are also bonded to withstand the pressure of the media handled. Standard design The plate pack is covered by cover plates. Connections are located in the front or rear cover plate. The channel plates are corrugated to improve heat transfer design. Particulars required for quotation To enable Alfa Laval’s representative to make a specific quotation, enquiries should be accompanied by the following particulars: - - flow rates or heat load required
- - temperature program
- - physical properties of liquids in question
- - desired working pressure
- - maximum permitted pressure drop
Flow principle of an AlfaNova plate heat exchanger CE approval pressure/temperature graph (Alfa Nova HP 14) 
Standard dimensions 
| A = 7.6 + n x 2.35 / 0.30 + n x 0.09 | | Weight kg: 0.74 + n x 0.046 / weight lb: 1.63 + n x 0.10 | | (n = number of plates) |
Standard data | Min. working temperature | -50ºC / -58ºF | | Max. working temperature | see graph | | Min. working pressure | Vacuum | | Max. working pressure | see graph | | Volume per channel litres/g | 0,02 / 0,053 | | Max. flowrate *) | 4.5 m³/h / 20 GPM | <>*) Water at 16.4 ft/s (5 m/s) - connection velocity
Standard materials | Cover plates | Stainless steel AISI 316 | | Connections | Stainless steel AISI 316 | | Plates | Stainless steel AISI 316 | | AlfaFusion filler | Stainless steel AISI 316 |
Standard connections | External thread connection |  | | Sweat connection |  | | Internal thread connection |  |
CE approval pressure/temperature graph (Alfa Nova HP 27) 
Standard dimensions 
| A = 14 + n x 2.4 | | Weight kg: 1.5 + n x 0.13 | | (n = number of plates) |
Standard data | Min. working temperature | -50ºC / -58ºF | | Max. working temperature | see graph | | Min. working pressure | Vacuum | | Max. working pressure | see graph | | Volume per channel litres/g | 0.05 / 0.013 | | Max. flowrate *) | 7.5 m³/h /33.02 GPM | <>*) Water at 5 m/s / 5.47 ft/s (connection velocity)
Standard materials | Cover plates | Stainless steel AISI 316 | | Connections | Stainless steel AISI 316 | | Plates | Stainless steel AISI 316 | | AlfaFusion filler* | Stainless steel AISI 316 |
Standard connections CE approval pressure/temperature graph (Alfa Nova HP 52) 
Standard dimensions 
| A = 12 + n x 2.4 | | Weight kg: 2.2 + n x 0.23 | | (n = number of plates) |
Standard data | Min. working temperature | -50ºC / -58ºF | | Max. working temperature | see graph | | Min. working pressure | Vacuum | | Max. working pressure | see graph | | Volume per channel | 0.095 / 0.025 gal | | Max. flowrate *) | 7.5 m³/h / 33.02 GPM | <>*) Water at 5 m/s / 5.47 ft/s (connection velocity)
Standard materials | Cover plates | Stainless steel AISI 316 | | Connections | Stainless steel AISI 316 | | Plates | Stainless steel AISI 316 | | AlfaFusion filler* | Stainless steel AISI 316 |
Standard connections CE approval pressure/temperature graph (HP 76) 
Standard dimensions 
| A = 14 + n x 2.85 | | Weight kg: 9.0 + n x 0.44 with feet | | (n = number of plates) |
Standard data | Min. working temperature | -50ºC / -58ºF | | Max. working temperature | 550ºC / 1020ºF | | Min. working pressure | Vacuum | | Max. working pressure | 45 bar / 650 psi | | Volume per channel litres/g | 0.25 / 0.066 | | Max. flowrate *) | 34 m³/h / 150 GPM | <>*) Water at 5 m/s / 5.47 ft/s (connection velocity)
Standard materials | Cover plates | Stainless steel AISI 316 | | Connections | Stainless steel AISI 316 | | Plates | Stainless steel AISI 316 | | AlfaFusion filler* | Stainless steel AISI 316 |
Standard connections in inches (mm) | 
