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Alfa Laval IndustrialLine M6 W Gasketed Plate-and-Frame Heat Exchanger

Alfa Laval Industrial semi-welded line is used when gaskets are not suitable for one of the process media. The semi-welded line can also withstand a higher design pressure compared to fully gasketed plate-and-frame heat exchangers. Suitable for a wide range applications, this model is available with a large selection of plate and gasket types.

ALFA LAVAL, IndustrialLine HEAT EXCHANGER, M6 WApplications

  • Chemicals
  • Energy and Utilities
  • Food and Beverages
  • HVAC and Refrigeration
  • Marine and Transportation
  • Mining, Minerals and Pigments
  • Pulp and Paper
  • Steel
  • Water and Waste treatment


  • High energy efficiency – low operating cost
  • Flexible configuration – heat transfer area can be modified
  • Easy to install – compact design
  • High serviceability – easy to open for inspection and cleaning and easy to clean by CIP
  • Access to Alfa Laval’s global service network


Every detail is carefully designed to ensure optimal performance, maximum uptime and easy maintenance. Selection of available features:

  • Corner guided alignment system
  • Chocolate pattern distribution area
  • Clip-on gasket
  • Leak chamber
  • Fixed bolt head
  • Key hole bolt opening
  • Lifting lug
  • Lining
  • Lock washer
  • Tightening bolt cover

Technical data

Name: M6-MW
Type: Semi-welded
Free channel, mm (inches): 2.8 (0.098)

Heat transfer plates:  316/316L, 254
C-276, C-2000
Ni, Ti

Field gaskets: NBR, EPDM
Ring gaskets:  NBR, EPDM, FKM, CR
Flange Connections: Carbon steel, Metal lined: stainless steel, titanium
Frame and pressure plate: Carbon steel, epoxy painted

Other materials may be available on request. All option combinations may not be configurable.

Operational data

Frame, PV-code: FG, ASME
Max. design pressure (barg/psig): 10.3/150
Max. design temperature (°C/°F): 160/320

Frame, PV-code: FD, ASME
Max. design pressure (barg/psig): 20.7/300
Max. design temperature (°C/°F): 160/320

Frame, PV-code: FD, PED
Max. design pressure (barg/psig): 25.0/362
Max. design temperature (°C/°F): 180/356

Extended pressure and temperature rating may be available on request.

Flange connections
FG, ASME: ASME B16.5 Class150 NPS 2
FG, PED: EN 1092-1 DN50 PN16
FD, ASME: ASME B16.5 Class 300 NPS 2
FD, PED: EN 1092-1 DN50 PN25

Standard EN1092-1 corresponds to GOST 12815-80 and GB/T 9115.

Dimensional drawing
Measurements mm (inches)

ALFA LAVAL, IndustrialLine HEAT EXCHANGER, M6 W drawing

Type: M6-FG
H: 920 (36.2”)
W: 320 (12.6”)
h: 140 (5.5”)

Type: M6-FD
H: 940 (37.0”)
W: 330 (13.0”)
h: 150 (5.9”)

The number of tightening bolts may vary depending on pressure rating.

Keeping you processing

For more information about our products and services please get in touch!

Internal Sales Manager

Call: 01777 712101
Email: jamie.wetherill@moodydirect.com