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Alfa Laval provides a comprehensive range of semi-welded heat exchangers for all types of refrigerants and fluids. |
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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. |
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- Low charge
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Low weight
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Easy to modify heat transfer area for altered capacities, refrigerants
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Easy inspection and cleaning of the liquid side
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Reliable, with long service life for heavy duties
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Plate materials for corrosive fluids, cooling water and brines
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Condenser/desuperheater or condenser/oil cooler combined in single unit
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Floating condensation with flooded evaporation
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Can be optimized with air liquid coolers in indirect cooling systems |
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-Water/glycol-cooled condensers
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Flooded evaporators
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DX evaporators
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Cascade systems
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Desuperheater/gas coolers for, for example, heat recovery
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Economizers/subcoolers
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Oil coolers |
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