Refrigerant Flooded Evaporators

Evaporators are very important in refrigeration systems. They are the barrier between the product or medium that must be cooled down, condensed or partly condensed, and the refrigerant. The following refers to flooded (or gravity) evaporators, controlled by the liquid level of the refrigerant.

Vahterus PSHE is a safe and effective choice for a NH3 evaporator. Both media are contained between fully welded plates, and the entire structure is protected with a shell, so there is no risk of ammonia leaks into the atmosphere.

Vahterus can deliver a complete flooded evaporator or heat exchanger for a customer-supplied external separator. We also offer a unique Combined Evaporator where droplet separation and evaporation is made inside one shell. Learn more about this solution here.

Combined Evaporator where droplet separation and evaporation is made inside one shell
Combined Evaporator where droplet separation and evaporation is made inside one shell

Vahterus PSHE is an excellent choice for a flooded evaporator with an external separator. In general, Vahterus evaporators can work with the following range:

- Temperature range: -80 / 150C
- Pressure range: -1 / 80 bar
- Capacity range: 50 – 10 000kW

Benefits

  • Applicable for liquid and gases
  • Compact and easy to install
  • Easy to insulate
  • Low pressure drop
  • Easy oil separation
  • High design pressures for heat-pump applications

Reference cases

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