Plate Heat Exchanger
Industrial semi-welded GPHEs
Industrial semi-welded gasketed plate heat exchangers are used when gaskets are not suitable as one of the process media. Semi-welded GPHEs can also take a higher design pressure compared to fully gasketed plate-and-frame heat exchangers.
In the Semi-welded heat exchanger the refrigerant flows in laser-welded, sealed plate channels, and in the opposite channel the liquid brine flows in gasketed channels.
Semi-welded GPHEs are used in refrigeration applications as:
- Evaporators
- Condensers
- Desuperheaters
- Cascade duties
- Economizers/subcoolers
Benefits of Semi-welded GPHEs:
- Easy to modify heat transfer area for altered capacities, refrigerants
- Condenser/desuperheater or condenser/oil cooler combined in single unit
- Special high pressure version available for CO2 cascade duties
- Special fitted Surge drum available for flooded NH3 evaporator application
- Can be optimized with air liquid coolers in indirect cooling systems
