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Alfa Laval WideGap is used for fibrous liquids, for highly viscous fluids and for fluids containing coarse particles. The wide gaps between the plates, the plate pattern and the smooth port design allow fluids with fibres and particles to easily flow through the heat exchanger.

The available channel gap sizes for this model are:

  • wide/wide 8/8 mm (0.31/0.31 inches)
  • wide/narrow 11/5 mm (0.43/0.20 inches)


• Biotech and Pharmaceutical
• Chemicals
• Energy and Utilities
• Food and Beverages
• Mining, Minerals and Pigments
• Pulp and Paper
• Water and Waste treatment


• Maximum uptime for fouling applications
• 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:

• 5-point alignment system
• Reinforced hanger
• Chocolate pattern distribution area
• Glued gasket
• Clip-on gasket
• Leak chamber
• Bearing box
• Fixed bolt head
• Key hole bolt opening
• Lifting lug
• Lining
• Lock washer
• Pressure plate roller
• Tightening bolt cover

Technical data

Name: T20-S                                                                                                                                                                                     Type: Wide-G                                                                                                                                                                                   Free channel;, mm (inches):11 / 5 (0.43/0.20) wide/narrow
8 / 8 (0.31/0.31) wide/wide


Heat transfer plates: 316/316L, 254                                                                                                                                           Field gaskets: NBR, EPDM, FKM                                                                                                                                                 Flange connections: Carbon steel                                                                                                                                                                                       Metal lined: stainless steel, titanium                                                                                                     Frame and pressure plate: Carbon steel, epoxy painted

Operational data
Frame, PV-code:FM, pvcALS
Max. design pressure (barg/psig):10.0/145
Max. design temperature (°C/°F):180/356

Frame, PV-code: FG, ASME                                                                                                                                                  Max. design pressure (barg/psig):10.3 /150                                                                                                                    temperature (°C/°F):177/350

Frame, PV- code: FG, PED                                                                                                                                                        Max. design pressure (barg/psig): 16.0/232
Max. design temperature (°C/°F): 180/356