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    FDM Series Diaphragm Check Valves
    <!--<$[标题]>begin-->FDM Series Diaphragm Check Valves<!--<$[标题]>end-->

    FDM Series diaphragm check valves are widely used in VRVs, commercial air conditioners, heat pump hot water heaters, and commercial refrigeration. They are used to control the unidirectional flow of refrigerant so as to prevent backflow.

    FEATURES

    •  This valve can ensure the only correct flow direction to prevent back flow

    •  Filter screen installed at the inlet of this valve to effectively filter impurities

    •  Magnetic vale plate design without installation angles limits

    •  Red copper valve body without any solder joints ensures no leakage


    OPERATION CONDITIONS

    •  Applicable Refrigerants: R410A, R32, R134a, R404A, R507, R290, R407C and R22 (For R290, please confirm before placing orders.)

    •  Maximum Working Pressure：4.5MPa

    •  Medium Temperature： -30℃~ +120℃

    •  Ambient Temperature：-30℃~ +55℃

    •  Relative Humidity: below 95%


    TECHNICAL PARAMETERS

    Model

    Kv（m3/h）

    Max Working Pressure

    Min Open Differ Press

    MPa

    MPa

    FDM6

    0.65

    5

    0.01

    FDM10

    1.29

    5

    0.01

    FDM12

    2.49

    5

    0.01

    FDM16

    2.83

    5

    0.01

    FDM19

    3.17

    4.5

    0.01

    FDM22

    3.51

    4.5

    0.01

    FDM22

    3.77

    4.5

    0.01

    FDM19

    4.54

    4.5

    0.02

    FDM22

    7.2

    4.5

    0.02

    FDM29

    13.11

    4.5

    0.02

    FDM29

    14.48

    4.5

    0.02

    FDM35

    19.02

    3.5

    0.02

    FDM42

    31.96

    3.5

    0.03

    FDM54

    56.04

    3.5

    0.05

    FDM67

    65.04

    3.5

    0.05

    FDM80

    74.98

    3.5

    0.05


    DIMENSIONS


    Model

    Connections（ΦD）

    A

    B

    C

    Weight

    Order Number

    inch

    mm

    mm

    mm

    mm

    g

    FDM06

    1/4

    6.4

    102

    10

    22.3

    80

    FDM2605100001

    FDM10

    3/8

    9.7

    100

    10

    22.3

    85

    FDM2605110001

    FDM12

    1/2

    12.8

    127

    14

    28.5

    150

    FDM2605120001

    FDM16

    5/8

    16

    127

    15.5

    28.5

    140

    FDM2605130001

    FDM19

    3/4

    19.1

    127

    14

    28.5

    140

    FDM2605140001

    FDM22

    7/8

    22.3

    127

    18

    28.5

    160

    FDM2605230001

    FDM22

    7/8

    22.3

    178

    15

    35

    320

    FDM2605150001

    FDM19

    3/4

    19.1

    178

    18

    41

    350

    FDM2605240001

    FDM22

    7/8

    22.3

    178

    21

    41

    350

    FDM2605330001

    FDM29

    1-1/8

    28.6

    206

    18

    41

    500

    FDM2605160001

    FDM29

    1-1/8

    28.6

    213

    25.5

    54

    700

    FDM2605170001

    FDM35

    1-3/8

    35.1

    238

    26

    67

    1200

    FDM2605180001

    FDM42

    1-5/8

    42

    267

    28

    80

    1680

    FDM2605190001

    FDM54

    2-1/8

    54

    305

    34

    92

    2400

    FDM2605200001

    FDM67

    2-5/8

    67

    330

    38

    105

    3500

    FDM2605210001

    FDM80

    3-1/8

    80

    330

    44

    105

    3500

    FDM2605220001