Alfa Laval Compabloc – welded plate-and-block

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Product Details

Alfa Laval Compabloc is a fully welded plate-and-block heat exchanger engineered for the toughest duties in refining, chemical and petrochemical processing. With 3–5 times the thermal efficiency of shell-and-tube designs in a fraction of the footprint, Compabloc handles aggressive media, temperatures from –100 °C to +400 °C and pressures up to 60 bar. Over 30,000 units operating worldwide confirm its reputation for reliable, long-term performance in reboiler, condenser and liquid-to-liquid duties. Every unit is custom-built and fully mechanically cleanable.

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▸ Key Features
  • 3–5× higher thermal efficiency than comparable shell-and-tube exchangers — significantly smaller footprint and weight
  • Fully welded, gasket-free construction — safe handling of aggressive chemicals, high temperatures and high pressures
  • C-Weld™ laser welding eliminates crevices and dead zones — prevents fouling build-up and corrosion at weld joints
  • SmartClean™ open channels at plate boundaries — 100% mechanically cleanable on both circuits with hydro jets
  • XCore™ plate pattern for high-pressure cleanable designs up to 42 barg without compromising thermal performance
  • Compabloc+ with +Seal™ confined graphite gasket for safe operation up to 60 bar
  • Crossing temperatures achievable in a single unit — maximizes energy recovery and reduces equipment count
  • Flexible flow configurations — independent pass selection on hot and cold sides handles asymmetric flows
  • Payback typically within months through energy savings and reduced maintenance
▸ Technical Specifications
Parameter Value
Design temperature –100 °C to +400 °C
Design pressure Up to 42 barg (standard); up to 60 barg (Compabloc+)
Max. heat transfer area 840 m²
Max. liquid flow rate Up to 6,000 m³/h per unit
Closest temperature approach 3 °C
Plate materials 316L, 254 SMO, Titanium Gr. 1, 904L, Alloy C-276, Alloy C-22 — virtually any material that can be pressed and welded
Plate patterns K-series (cleanable), L-series (high pressure), X-series (high pressure + cleanable), H-series (hygienic), M-series (two-section condensers)
Welding Laser welded, butt-to-butt C-Weld™ joint — no crevices
▸ Applications
  • Oil refining — crude preheat, hydrotreater feed/effluent, amine reboiling, overhead condensers
  • Chemical and petrochemical processing — reboilers, condensers, liquid-to-liquid interchangers
  • Pharmaceutical and fine chemical production
  • Gas processing and LNG
  • Power generation — heat recovery, feedwater heating
  • Biodiesel and bioethanol production
  • Polymer and plastics manufacturing
  • Any duty requiring reliable performance with aggressive media, high temperatures or high pressures