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CO2 high pressure E2V-C expansion valve for small stores
05/10/2012
CO2 high pressure E2V-C expansion valve for small stores
Carel can offer a complete high pressure range for CO2applications in subcritical and transcritical systems.
The proportional electronic expansion valve E2V offers a range of capacities to suit small store format CO2 refrigeration condensing units and mini racks with up to 140 bars.
The E2V can be applied as the main high pressure and flash gas bypass valve in transcritical CO2 systems.
Main features of the E2V:
- The flow of refrigerant is modulated by a nozzle coupled to a torpedo-shaped aperture that measures over 15 mm long, and has a wide operating range.
- The internal mechanism is fitted to a calibrated spring with ball bearings and guarantees stable and reliable regulation reducing the risks of failures.
- The equipercentage variation of the refrigerant flow-rate to the degree of opening of E2V in both directions ensures high precision control in all applications, even at low flow-rates.
- E2V-C is completely manufactured using laser-welding techniques on high quality materials (AISI 316L), as well as techno polymers.
- Carel has paid special attention to the smallest details in designing E2V to ensure very high reliability for operations up to 120bars of differential pressure and of up to 140 bar of max pressure.
- Other features include exclusive axial motion of the nozzle aperture and seal gasket in the closing position.
- Other equipment may be apply for multiboards architecture (see application note cod. +4000018EN) full store supervision with HVAC optimization and remote monitoring.
The picture shows a convenient store booster refrigeration schematic example with "CAREL retail sistema".
