Alfa Disc0 pages

AlfaDisc
All-welded Plate Heat Exchanger
Applications
AlfaDisc is suitable for most of the applications, such as
g
­ eneral cooling and heating duties, condensation, evaporation, reboiling and stream heating.

Standard design
AlfaDisc is built on the Plate & Shell concept. It is able to
withstand higher design pressure, is more compact, is better
developed for fatigue applications, has the possibility for
asymmetric flow and is cleanable on one side. These features
in combination with an attractive price give us a range of
c
­ ompetitive advantages over other welded concepts.
The AlfaDisc all-welded plate heat exchanger provides the
thermal efficiency and compactness of a plate and frame unit
under conditions that would normally call for a shell and tube
unit.
Designed for use with liquids, gases and two-phase mixtures at pressure up to 100 bars (PED & ASME) and at
temperatures up to 538°C, the Plate&Shell unit works well
with aggressive media, such as organic solvents, steam
heaters and interchangers that are beyond the capability of a
gasketed unit. The unit is also available with removable core
design.

Typical capacities

AlfaDisc 50

Nozzle sizes up to DN 700 can be accommodated on the
shell side of the exchanger, offering higher steam and liquid
flow rates. Nozzles on the plate side can be up to DN 200.
The AlfaDisc unit can be fabricated from dissimilar metals
when only one side will be exposed to corrosive conditions.
Turning plate port

Liquid flow rate
Up to 157 kg/s (2355 gpm) depending on media, permitted
pressure drop and temperature program.
Sizes
AlfaDisc 25t
AlfaDisc 50t
AlfaDisc 80t

Bypass restriction
diverters

AlfaDisc 100
AlfaDisc 150
AlfaDisc 200

Working principle
The unit features a plate side and a shell side, which offer high
pressure ratings. It has alternating channels for hot and cold
media, and can offer true counter-current or co-current flow.
Number of passes could be up to 3 passes maximum on
each side.

Shell
divider

Flow principle of a multi-pass AlfaDisc.