The Alfa Laval Industrial semi-welded product line is a range of semi-welded plate heat exchangers (half-welded, half-gasketed). This is a hybrid product line, perfectly combining the advantages of both conventional gasketed plate heat exchangers and fully welded heat exchangers.
Industrial semi-welded line
The semi-welded heat exchangers are available in six models.
The refrigerant flows in laser-welded, sealed plate channels, and the brine in gasketed channels. The flexible modular design copes with fatigue stresses and ice formation. The semi-welded heat exchanger handles most refrigerants on the welded side and is particularly suitable for ammonia duties. Standard plate materials are stainless steel and titanium. Temperature range is -47°C to 150°C; pressure is up to 40 bar, depending on size.
Benefits
- Low charge
- Low weight
- Easy to modify heat transfer area for altered capacities, refrigerants
- Easy inspection and cleaning of the liquid side
- Reliable, with long service life for heavy duties
- Plate materials for corrosive fluids, cooling water and brines
- Condenser/desuperheater or condenser/oil cooler combined in single unit
- Floating condensation with flooded evaporation
- Can be optimized with air liquid coolers in indirect cooling systems
Applications
- Water/glycol-cooled condensers
- Flooded evaporators
- DX evaporators
- Cascade systems
- Desuperheater/gas coolers for, for example, heat recovery
- Economizers/subcoolers
- Oil coolers
Product leaflets: M6 Semi- welded M10 Semi- welded M30 Semi- welded
