M6-MW
M6-MWFG
Semi-welded plate heat exchanger
Applications
Heating and cooling of aggressive media. Duties in refrigeration
installations.
Standard design
The plate heat exchanger consists of a pack of corrugated
metal plates with portholes for the passage of the two uids
between which heat transfer will take place.
The plate pack is assembled between a x frame plate and a
movable pressure plate and compressed by tightening bolts.
The semi-welded plates combine the exibility and serviceability of the gasketed heat exchangers with the assurance
against leakage of the welded heat exchangers. In the plate
arrangement, every other channel is welded, and every other
channel is gasketed. The number of plates is determined by
the ow rate, physical properties of the uids, pressure drop
and temperature program. The plate corrugations promote
uid turbulence and support the plates against differential
pressure.
The semi-welded plate heat exchanger is provided with
gaskets specically designed to resist aggressive media.
The non-aggressive media ows in the gasketed channels.
This construction means that it can easily be dismantled, for
example for exchanging gaskets or for inspection and cleaning
of the gasketed channels.
Corrosion-resistant plate materials, the absence of pressure
retaining welds, double gasket seals, and a exible yet vibration
resistant design - to assure long life and trouble free operation.
The frame plate and the pressure plate are suspended from
an upper carrying bar and located by a lower guiding bar,
both of which are xed to a support column. Connections are
located in the frame plate or, if either or both uids make more
than a single pass within the unit, in the frame and pressure
plates.
Typical capacities
Liquid ow rate
Up to 16 kg/s, depending on media, permitted pressue drop
and temperature program.
Refrigeration duties
10-70 RT/35-250 kW
Plate types
M6-MW
Frame types
FG and FD
Cross section of a semi-welded plate heat exchanger
EPM00057EN 0407
How to contact Alfa Laval
Contact details for all countries
are continually updated on our website.
Please visit www.alfalaval.com to
access the information directly.
Working principle
Channels are formed between the plates and the corner ports
are arranged so that the two media ow through alternate
channels. The heat is transferred through the plate between
the channels, and complete counter-current ow is created
for highest possible efciency. The corrugation of the plates
provides the passage between the plates, supports each
plate against the adjacent one and enhances the turbulence,
resulting in efcient heat transfer.
Standard materials
Frame plate
Mild steel, Epoxy painted
Nozzles
Carbon steel
Metal lined; Stainless steel, Titanium
Plates
Stainless steel AISI 316 or Titanium
Gaskets
Field gaskets Nitrile, EPDM
Ring gaskets Chloroprene, EPDM
Connections
FG PED Size 50 mm DIN PN16
FG ASME Size 2" ANSI 150
FD PED Size 50 mm DIN PN25
FD ASME Size 4" ANSI 300
Technical data
Mechanical design pressure (g) / temperature
FG PED 1.6 MPa / -40 to 180°C
FG ASME 150 psig / -40 to 320°F
FD PED 2.5 MPa / -40 to 180°C
FD ASME 300 psig / -40 to 320°F
Maximum heat transfer surface
30 m² (330 sq. ft)
Particulars required for quotation
– Flow rates or heat load
– Temperature program
– Physical properties of liquids in question (if not water)
– Desired working pressure
– Maximum permitted pressure drop
– Available steam pressure
Flow principle of a plate heat exchanger
Dimensions
Measurements (mm)
Type H W h
M6-FG 920 320 140
M6-FD 940 330 150
The number of tightening bolts may vary depending on pressure rating.
All rights reserved for changes in specications
THERMAL TRANSFER SYSTEMS, INC.
SALES@THERMALTRANSFERSYSTEMS.COM
PH: 800-527-0131 FAX: 972-242-7568
M10-BW
M10-BW
Semi-welded plate heat exchanger
Applications
Heating and cooling of aggressive media. Duties in refrigeration
installations.
Standard design
The plate heat exchanger consists of a pack of corrugated
metal plates with portholes for the passage of the two uids
between which heat transfer will take place.
The plate pack is assembled between a x frame plate and a
movable pressure plate and compressed by tightening bolts.
The semi-welded plates combine the exibility and serviceability of the gasketed heat exchangers with the assurance
against leakage of the welded heat exchangers. In the plate
arrangement, every other channel is welded, and every other
channel is gasketed. The number of plates is determined by
the ow rate, physical properties of the uids, pressure drop
and temperature program. The plate corrugations promote
uid turbulence and support the plates against differential
pressure.
The semi-welded plate heat exchanger is provided with
gaskets specically designed to resist aggressive media.
The non-aggressive med ia ows in the gasketed channels.
This construction means that it can easily be dismantled, for
example for exchanging gaskets or for inspection and cleaning
of the gasketed channels.
Corrosion-resistant plate materials, the absence of pressure
retaining welds, double gasket seals, and a exible yet vibration
resistant design - to assure long life and trouble free operation.
The frame plate and the pressure plate are suspended from
an upper carrying bar and located by a lower guiding bar,
both of which are xed to a support column. Connections are
located in the frame plate or, if either or both uids make more
than a single pass within the unit, in the frame and pressure
plates.
Typical capacities
Liquid ow rate
Up to 50 kg/s, depending on media, permitted pressue drop
and temperature program.
Refrigeration duties
50-250 RT/175-875 kW
Plate types
M10-BW
Frame types
FG, FD and REF
Cross section of a semi-welded plate heat exchanger
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