expansion valve RFGD Series

    RFGD series thermostatic expansion valves are used to
    regulate refrigerant flow rate into the evaporator while
    controlling the refrigerant´s superheat at the outlet of
    the evaporator. They can be used for various refrigerants
    under all working conditions. Typical applications are
    refrigeration systems like commercial refrigerators and
    freezers, ice makers, air conditioners and dehumidifiers at
    various evaporation temperatures.

    sanhua rfgd

    FEATURES

    • • COMPACT DESIGN WITH FIXED ORIFICE
      • ALL COPPER CONNECTIONS
      • VALVES WITH MOP FUNCTION CAN BE PROVIDED TO ASSURE RELIABLE COMPRESSOR OPERATION
      • BALANCED PORT DESIGN FOR STABLE OPERATION
      • BI-DIRECTIONAL CONTROL
      • THERMAL SENSING BULB UTILIZES CROSS CHARGE TECHNOLOGY, PROVIDING CONSISTENT SUPERHEAT
      OVER THE WIDE EVAPORATOR TEMPERATURE RANGE

    GENERAL SPECIFICATIONS

    • • Applicable for all common HCFC and HFC refrigerants such as: R-22, R-134a, R-404A, R-407C, R-507
      • Applicable ambient temperatures: -30°F to +130°F
      • Fluid temperature range: -40°F to +158°F
      • Maximum operating pressure:
      – R-134a – 305 psig
      – R-22, R-407C – 405 psig
      – R-404A / R-507 – 505 psig
      • Certifications: UL/CSA and PED declaration

    ELECTRICAL PARAMETERS

    • RFGD valves available in straight shape with adjustable
    superheat
    • RFGD Valves are available with the following solder connections:
    – Inlet 3/8” ODF/ Outlet 5/8” ODF or
    – Inlet 1/2” ODF/ Outlet 7/8” ODF or
    – Inlet 5/8” ODF/ Outlet 7/8” ODF
    • RFGD valves are available with 3 different thermostatic charges
    having the following temperature ranges:
    – from -40°F to 50°F
    – from -40°F to 23°F
    – from -76°F to -13°F
    • Equalization port available as option:
    – 1/4” ODF
    • Capillary tube length 5 ft as standard. Different length
    customizable on request.
    • Standard MOP values:
    – T. Range -40°F to 50°F: MOP 59°F or non-MOP
    – T. Range -40°F to 23°F: MOP 32°F
    – T. Range -76°F to -13°F: MOP -4°F

    TECHNICAL PARAMETERS

    Position

    Number

    		 Model Designation Legend
    Product Code Product Series
    1 RFGD Model number
    Refrigerant Description
    1 R-22
    2 R-407C
    2 3 R-404A / R-507
    4 R-134a
    5 R-410A
    3 Pressure Equalization Description
    E External equalizer
    (Omitted) Internal equalizer
    4 Valve Size Internal Orifice Size
    From 1 to 6 Valve size: proportional to the orifice size and to the nominal capacity
    Connections Type Description
    3 Inlet 3/8″ / outlet 5/8″
    5 4 Inlet 1/2″ / outlet 7/8″
    5 Inlet 5/8″ / outlet 7/8″
    6 Miscellaneous Description
    xxx Digits for additional information

    e.g. static superheat, MOP, Bleed…

    MODEL DESIGNATION EXAMPLE

    Position Numbe r According to Model Designation Legend
    1 2 3 4 5 6
    RFGD 04 E 3 4 xxxx a a a a a a Thermostatic expansion valve model
    RFGD 04 E 3 4 xxxx Refrigerant: R-134a
    RFGD 04 E 3 4 xxxx With external equalizer
    RFGD 04 E 3 4 xxxx Capacity: Valve and orifice size 3
    RFGD 04 E 3 4 xxxx Connection sizes: Inlet 1/2” ODF, outlet 7/8”
    RFGD 04 E 3 4 xxxx Digits for additional information

    TECHNICAL DATA

    R-22 R-407C2) R-404A / R-507 R-134a R-410A
    Model Name3) Capacity

    (tons)

    		 Model Name3) Capacity

    (tons)

    		 Model Name3) Capacity

    (tons)

    		 Model Name3) Capacity

    (tons)

    		 Model Name3) Capacity

    (tons)
    RFGD 01-1 RFGD 02-1 RFGD 03-1 RFGD 04-1 RFGD 05-1
    3.0 3.1 2.0 1.8 3.5
    RFGD 01E-1 RFGD 02E-1 RFGD 03E-1 RFGD 04E-1 RFGD 05E-1
    RFGD 01-2 RFGD 02-2 RFGD 03-2 RFGD 04-2 RFGD 05-2
    4.0 4.2 2.8 2.5 4.5
    RFGD 01E-2 RFGD 02E-2 RFGD 03E-2 RFGD 04E-2 RFGD 05E-2
    RFGD 01-3 6.0 RFGD 02-3 6.3 RFGD 03-3 4.2 RFGD 04-3 3.6 RFGD 05-3 7.0
    RFGD 01E-3 RFGD 02E-3 RFGD 03E-3 RFGD 04E-3 RFGD 05E-3
    RFGD 01-4 7.5 RFGD 02-4 8.1 RFGD 03-4 5.4 RFGD 04-4 4.6 RFGD 05-4 8.6
    RFGD 01E-4 RFGD 02E-4 RFGD 03E-4 RFGD 04E-4 RFGD 05E-4
    RFGD 01-5 RFGD 02-5 RFGD 03-5 RFGD 04-5 RFGD 05-5
    9.0 9.4 6.4 5.5 10.6
    RFGD 01E-5 RFGD 02E-5 RFGD 03E-5 RFGD 04E-5 RFGD 05E-5
    RFGD 01-6 11.0 RFGD 02-6 11.7 RFGD 03-6 7.8 RFGD 04-6 6.8 RFGD 05-6 12.8
    RFGD 01E-6 RFGD 02E-6 RFGD 03E-6 RFGD 04E-6 RFGD 05E-6

     

    Note:

    1. Nominal capacities based at the following operating conditions: Condensing temperature: 100°F; Evaporating temperature +40°F; Liquid temperature 99°F; Static superheat: 7°F 2. R-407C data based on dew point conditions
    2. Model Name in this table is referred to the first 4 positions of the model designation

    THERMOSTATIC CHARGES

    Refrigerant Temperature Range
    -40°F to 50°F -40°F to 23°F -76°F to -13°F
    No MOP MOP: 59°F MOP: 23°F MOP: -4°F
    R-22 On Request
    R-407C Standard On Request
    R-404A / R-507 Standard On Request
    R-134a Standard On Request  Not Available

    STANDARD RANGE MODEL LIST

    Model Name
    Ref. Valve Body Capacity Size

    All Sizes

    		 Connections IN x OUT (ODF) Pressure Equal. Model Number Product Number
    Code (inch) (inch)
    R-407C RFGD 02E 1 – 3 3/8 x 5/8 1/4 RFGD 02E-3.1-33 RFG-25037
    2 – 4 1/2 x 7/8 1/4 RFGD 02E-4.2-34 RFG-25038
    3 – 4 1/2 x 7/8 1/4 RFGD 02E-6.3-35 RFG-25039
    4 – 4 1/2 x 7/8 1/4 RFGD 02E-8.1-36 RFG-25040
    5 – 5 5/8 x 7/8 1/4 RFGD 02E-9.4-37 RFG-25041
    6 – 5 5/8 x 7/8 1/4 RFGD 02E-11.7-38 RFG-25042
    R-404A

    /

    R-507

    		 RFGD 03E 1 – 3 3/8 x 5/8 1/4 RFGD 03E-2.0-39 RFG-25043
    2 – 4 1/2 x 7/8 1/4 RFGD 03E-2.8-40 RFG-25044
    3 – 4 1/2 x 7/8 1/4 RFGD 03E-4.2-41 RFG-25045
    4 – 4 1/2 x 7/8 1/4 RFGD 03E-5.4-42 RFG-25046
    5 – 5 5/8 x 7/8 1/4 RFGD 03E-6.4-43 RFG-25047
    6 – 5 5/8 x 7/8 1/4 RFGD 03E-7.8-44 RFG-25048
    R-134a RFGD 04E 1 – 3 3/8 x 5/8 1/4 RFGD 04E-1.8-01 RFG-25049
    2 – 4 1/2 x 7/8 1/4 RFGD 04E-2.5-02 RFG-25050
    3 – 4 1/2 x 7/8 1/4 RFGD 04E-3.6-03 RFG-25051
    4 – 4 1/2 x 7/8 1/4 RFGD 04E-4.6-04 RFG-25052
    5 – 5 5/8 x 7/8 1/4 RFGD 04E-5.5-49 RFG-25053
    6 – 5 5/8 x 7/8 1/4 RFGD 04E-6.8-32 RFG-25054
    R-410A RFGD 05 1 – 3 3/8 x 5/8 1/4 RFGD 05E-3.5-22 RFG-25055
    2 – 4 1/2 x 7/8 1/4 RFGD 05E-4.5-23 RFG-25056
    3 – 4 1/2 x 7/8 1/4 RFGD 05E-7.0-24 RFG-25057
    4 – 4 1/2 x 7/8 1/4 RFGD 05E-8.6-25 RFG-25058
    5 – 5 5/8 x 7/8 1/4 RFGD 05E-10.6-27 RFG-25059
    6 – 5 5/8 x 7/8 1/4 RFGD 05E-12.8-26 RFG-25060

    Note:    The drawing represents a model with External Pressure Equalization

    Orifice Overall Dimensions (in )
    L1 L2 L3
    1.63 2.34 1.48

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