Thermostatic Expansion Valve RFGB Series

Thermostatic Expansion Valve Thermostatic Expansion Valve RFGB Series

RFGB series thermal expansion valves are used to adjust supply volume of refrigerant in the evaporator which can provide injection of various refrigerants under all working conditions. They can also meet the requirements of freezers, ice makers, dehumidifiers as well as refrigerating systems and air conditioners in various vaporizing temperature ranges.

Technical parameters

  • Features
    • Compact structure
    • Thermal bulb utilizes cross injection technology, and the whole vaporizing temperature range share the same superheat degree
    • Valves with MOP function can be provided to prevent damages to compressor motor caused by excessive evaporation pressure
    • Wide vaporizing temperature range
  • General specifications
    • Applicable refrigerant: R22, R290, R134a, R404A, R507 and R407C etc.
    • Applicable medium temperature: -40??70? or -60??70?
    • Applicable ambient temperature: -35??55?
    • Relative humidity: 0?100%RH
    • Maximum working pressure: 3.5MPa
  • Nominal Capacity

    No. NominalCapacity US.R.T NominalCapacity kW
    R22 R407C R404A/R507 R134a R22 R407C R404A/R507 R134a
    1 0.35 0.38 0.25 0.22 1.2 1.3 0.9 0.8
    2 0.7 0.76 0.5 0.44 2.5 2.7 1.8 1.5
    3 1 1.1 0.7 0.63 3.5 3.9 2.5 2.2
    4 1.5 1.6 1 0.94 5.3 5.6 3.5 3.3
    5 2 2.2 1.4 1.3 7 7.7 4.9 4.6

    Note:

    • Nominal capacity is measured under nominal working condition: condensating temperature 38?, refrigerant temperature before the valve 34ºC, vaporizing temperature 5ºC, static overheat 3.5ºC, operating superheat 4ºC.
  • Dimensions

    Thermal Expansion Valve RFGB Series . Dimensions

     

    Inlet A Outlet B
    mm in mm in
    6 1/4 10 3/8
    10 3/8 12 1/2
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