Patented refrigerant distribution system

• Perfect distribution of liquid in all the tubes
• Superheating optimisation
• Compatibility with most used HFO and HFC/HFO blends

Single-pass, countercurrent concept

• Refrigerant and water use the most efficient flow concept: countercurrent
• Single-pass configuration on refrigerant side reduces pressure drop

Multicircuit design

• One, two or three independent refrigerant circuits
• Maximum safety of operation as in case of forced stop of one circuit; the others continue to work
• Increased part load efficiency

Revolutionary square design

• Higher heat exchange surface compared to traditional cylindrical dry-expansion evaporators
• Optimised water side flow
• High level of customisation

Helping to reach EcoDesign Tier II efficiency targets

Thanks to its high performance and the possibility to reach very compact thermal approaches between the water leaving temperature and the evaporation temperature, SQD is the solution allowing chiller manufacturers to reach the challenging minimum efficiency targets of EcoDesign Tier II for air conditioning and process cooling applications.

Dry-expansion solution: less refrigerant charge

Ensuring performance close to that typical of a flooded evaporator, SQD uses a dramatically reduced refrigerant charge.

Oil recovery? Not a problem

Oil flow through the evaporator is always guaranteed.

Flexibility in part load operation

SQD allows the possibility of playing with one to three independent refrigerant circuits, and – at the same time – operating in part load up to 25% in each single circuit.

Optimisation of water pumping costs

The number of baffle choices allows the optimisation of water-side pressure drop in all conditions, avoiding penalising pumping costs.

A wide range of options

• Water connections located on the left or right side of the shell
• Standard temperature or low temperature (TS< –10°C) versions
• One, two, three or four refrigerant circuits

A wide range of accessories

• Welded support feet
• Thermal insulation
• Antifreeze heaters
• Flexible joint (Victaulic) or flanged water connections