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We suggest a variety of Danfoss high pressure sight glasses (maximum operating pressure (PS) is 52 bar. Sight glasses of SGP I version optimized for HCFC and HC refrigerants and SGP N version optimized for HCFC, HFC, HC and R744 (CO2) refrigerants and equipped with moisture indicators. Available with flare, solder and screw connections. Applications: traditional refrigeration systems, heat pump systems, air-conditioning equipment, liquid coolers, portable refrigeration units. Brazed versions are produced in accordance with Danger Zone 2 according to the ATEX directive.

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Types of SGP high pressure sight glasses:

  • SGP X/SGP RX (without moisture indicator)
    • Indicates no subcooling
    • Indicates a shortage of refrigerant
    • Indicates the liquid level in the reservoir
    • Indicates the oil level in the compressor
  • SGP I/SGP RI (with Type I Moisture Index)
    • For HCFC and HC refrigerants
    • Indicates excessively high moisture content in the refrigeration system
    • Indicates no subcooling
    • Indicates a shortage of refrigerant
    • SGP N/SGP RN (with N-type moisture indicator)
  • For HCFC, HFC, HC and R744 refrigerants
    • Indicates excessively high moisture content in the refrigeration system
    • Indicates no subcooling
    • Indicates a shortage of refrigerant

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