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AlfaNova 14, 27, 52 & 76

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AlfaNova 14, 27, 52 & 76
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

<>*) Water at 16.4 ft/s (5 m/s) - connection velocity
Min. working temperature-50ºC / -58ºF
Max. working temperaturesee graph
Min. working pressureVacuum
Max. working pressuresee graph
Volume per channel litres/g0,02 / 0,053
Max. flowrate *)4.5 m³/h / 20 GPM

Standard materials

Cover platesStainless steel AISI 316
ConnectionsStainless steel AISI 316
PlatesStainless steel AISI 316
AlfaFusion fillerStainless 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

<>*) Water at 5 m/s / 5.47 ft/s (connection velocity)
Min. working temperature-50ºC / -58ºF
Max. working temperaturesee graph
Min. working pressureVacuum
Max. working pressuresee graph
Volume per channel litres/g0.05 / 0.013
Max. flowrate *)7.5 m³/h /33.02 GPM

Standard materials

Cover platesStainless steel AISI 316
ConnectionsStainless steel AISI 316
PlatesStainless steel AISI 316
AlfaFusion filler*Stainless steel AISI 316

Standard connections

B21
H21
H23

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

<>*) Water at 5 m/s / 5.47 ft/s (connection velocity)
Min. working temperature-50ºC / -58ºF
Max. working temperaturesee graph
Min. working pressureVacuum
Max. working pressuresee graph
Volume per channel0.095 / 0.025 gal
Max. flowrate *)7.5 m³/h / 33.02 GPM

Standard materials

Cover platesStainless steel AISI 316
ConnectionsStainless steel AISI 316
PlatesStainless steel AISI 316
AlfaFusion filler*Stainless steel AISI 316

Standard connections

B21
H21
H23

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

<>*) Water at 5 m/s / 5.47 ft/s (connection velocity)
Min. working temperature-50ºC / -58ºF
Max. working temperature550ºC / 1020ºF
Min. working pressureVacuum
Max. working pressure45 bar / 650 psi
Volume per channel litres/g0.25 / 0.066
Max. flowrate *)34 m³/h / 150 GPM

Standard materials

Cover platesStainless steel AISI 316
ConnectionsStainless steel AISI 316
PlatesStainless steel AISI 316
AlfaFusion filler*Stainless steel AISI 316

Standard connections in inches (mm)

B23
  
D21
  
J23

 

 

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