The plate heat exchanger consists of a pack of corrugated
metal plates with portholes for the passage of the two fluids
between which heat transfer will take place.
The plate pack is assembled between a fix frame plate and a
movable pressure plate and compressed by tightening bolts.
The plates are fitted with a gasket, which seals the interplate
channel and directs the fluids into alternate channels. The
number of plates is determined by the flow rate, physical
properties of the fluids, pressure drop and temperature
program. The plate corrugations promote fluid turbulence and
support the plates against differential pressure.
The plate and the pressure plate are suspended from an
upper carrying bar and located by a lower guiding bar, both
of which are fixed to a support column.
Connections are located in the frame plate or, if either or both
fluids make more than a single pass within the unit, in the
frame and pressure plates.
STANDARD MATERIALS
Frame plate
Mild steel, Epoxy painted
Nozzles
Carbon steel
Metal lined: Stainless steel, Titanium
Rubber lined: Nitrile, EPDM
Plates
Stainless Steel AISI 304, AISI316 or Titanium
Gaskets
Nitrile or EPDM
TECHNICAL DATA
Pressure vessel codes PED, ASME, pvcALS?
Mechanical design pressure (g) / temperature
FMS PED, pvcALS? 1.0 MPa / 180°C
FGS PED, pvcALS? 1.6 MPa / 180°C
FGS ASME 150 psig / 350°F
FG PED, pvcALS? 1.6 MPa / 180°C
FG ASME 150 psig / 350°F
FD PED, pvcALS? 2.5 MPa / 180°C
FD ASME 300 psig / 350°F
FS ASME 400 psig / 350°F
CONNECTIONS
FMS PED Size 200/250 mm DIN 2501 PN10,
ASME Cl. 150
FMS pvcALS? Size 200/250 mm DIN 2501 PN10,
ASME Cl. 150, JIS 10K
FGS PED Size 200 mm DIN 2501 PN16,
ASME Cl. 150
FGS pvcALS? Size 200/250 mm DIN 2501 PN16,
ASME Cl. 150, JIS 16K
FGS ASME Size 8" ASME Cl. 150
FG PED Size 200/250 mm DIN 2501 PN16,
ASME CI. 150
FG pvcALS? Size 200/250 mm DIN 2501 PN16,
ASME Cl. 150, JIS 16 K
FG ASME Size 8"/10" ASME Cl.150
FD PED Size 200/250 mm DIN 2501 PN25,
ASME Cl. 300
FD ASME Size 8"/10" ASME Cl. 300
FS ASME Size 8"/10" ASME Cl. 400
Maximum heat transfer surface
940 m2 (10.000 sq. ft)
Dimensions
Measurements mm (inch)
Type H W h
MX25-FMS 2595 (102") 920 (36.2") 325 (12.8")
MX25-FGS 2595 (102") 920 (36.2") 325 (12.8")
MX25-FG max 3100 (122") 920 (36.2") 435 (17.1")
MX25-FD max 3100 (122") 940 (37") 435 (17.1")
MX25-FS max 3100 (122") 940 (37") 435 (17.1")
The number of tightening bolts may vary depending on the
pressure rating
Alfa Laval reserves the right to change specifications without prior notification.
439 (17.3")
W
1585 - 5185 (62"-204")
1939 (76.3")
h H
Flow principle of a plate heat exchanger
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
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