Alfa Laval

TL3B Gasketed Plate Heat Exchanger

The Alfa Laval TL3B is a compact gasketed plate heat exchanger from the Industrial line, with the tall plate profile that suits long temperature programs and high heat recovery. Beyond the standard single-plate build, it is also available with double wall plates for duties where the two fluids must never intermix. Threaded connections make it easy to pipe up in smaller installations.

Product Benefits

  • Big-frame thermal logic: The tall plate lets even this compact unit run long temperature programs with close approaches, so smaller heat-recovery and heating duties get the same thermal efficiency as the large frames.
  • Modest initial purchase: Capacity remains adjustable by adding or removing plates, which keeps the first investment small.
  • Double wall leak barrier: The double wall plate option is the standout: two plates pressed together form a leak-detecting barrier, so a plate failure vents outward instead of contaminating the other fluid.
  • Product safety pick: That makes the TL3B a considered choice where product safety or fluid separation is critical.
  • Code approved: The design is backed by pvcALS, ASME and PED approvals.

Where It's Used

  • Compact-scale recovery: It serves heating, cooling and heat-recovery duties with long temperature programs at compact scale.
  • Strict fluid separation: The double wall variant is aimed at services where intermixing of the two fluids must be ruled out.
  • Hygienic and process sectors: Industries include biotech and pharmaceuticals, chemicals, energy and utilities, food, dairy and beverages, and home and personal care.
  • Utility and heavy industry: HVAC and refrigeration, machinery and manufacturing, marine and transportation, mining, minerals and pigments, pulp and paper, semiconductor and electronics, steel, and water and waste treatment are also covered.

Good to Know

  • Plate materials: Single-plate versions come in several stainless steel grades, while the double wall execution is built in 316 stainless.
  • Gaskets and frame: Gaskets are offered in NBR, EPDM and FKM elastomers, and the frame and cover are epoxy-painted carbon steel.
  • Threaded connections: Connections follow ISO and NPT practice, which suits skid and utility-room piping without flange work.
  • Opens for cleaning: Like all gasketed exchangers, the pack opens for inspection and cleaning.
  • Size the double wall option: If you are weighing the double wall build, note that it trades a little thermal performance for the extra barrier, so allow for that when sizing.