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Oil regulation system

HCYCT - Differential valves for oil receivers, non adjustable


Technical description
• Differential valves are used on low pressure oil return systems of refrigerating and air conditioning installation.

• They are mounted on oil receivers in which they maintain a permanent overpressure compared to the compressor crankcases in order to ensure them a constant oil distribution. This is the guarantee of a regular and permanent oil reintegration.

• Therefore, the oil which is returned to the compressor crankcases is free from refrigerant as, should any refrigerant come from the oil separator, it would be expanded in the oil receiver and drained out to the suction line via the differential valves.
HCYCT - Differential valves for oil receivers, non adjustable
CARLY advantages
  • Maximum working pressure: 46 bar
  • HCYCT: 4 models of non adjustable differential valves with set pressures of 0.35, 1.4, 3.5 and 7 bar.
  • The HCYCT 7 is suitable for working with high pressure differential (7 bar) such as CO2 installations.
  • HCYCTR: 1 model of adjustable differential valve allowing a possible adjustment of the set pressure with a rod handled with a tool (square section of 7,8 mm), from 0.35 bar to 3.5 bar. Adjustment in factory : 1,4 bar.
  • The HCYCTR allow to very precisely adjust the differential of pressure, according to the characteristics of the compressors and the components of the oil return system.
  • The possibility to adjust the pressure differential enables to solve some problems of oil return.
Extra information
>> Technical documentation
pdf - 337 ko
>> Spare parts
pdf - 180 ko
>> Correction factors
pdf - 943 ko
>> Abbreviations and units
pdf - 880 ko
>> Connection features and drawings
pdf - 927 ko
>> General assembly precautions
pdf - 1075 ko
>> Weights and packaging
pdf - 985 ko
>> Compliance declarations Article 4§3
pdf - 362 ko
>> REACH communiqué
pdf - 770 ko
>> Warning - General sales terms
pdf - 1328 ko

Product references
HCYCT 1 (0.35bar) / HCYCT 3 (1.4 bar) / HCYCT 4 (3.5 bar)
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Source: http://www.carly-sa.com