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    Hot water meters




    VSG water meter is designed for metering the volume of the hot water flowing through it. It has a counting head with roll and pointer indicators. VSG(d) - with pulse output.

    General information.

    Checklist: VSG hot water meter rotary with either internal diameter Du 15...40 mm or turbine-type with internal diameter 50...250 mm.
    Fluid flow metering method: tachometer.
    Calibration procedure: onsite.
    Service life: not less than 12 years.

    Basic specifications

    SPECIFICATIONS
    VALUES
    Hot water heater's passage diameter, mm
    15...250
    Straight portion lengths:
       to the meter installation site, not less
    after the site, not less

    5 Du
    1 Du
    Fluid pressure loss in meters under Qmax, below, kPa
       rotary-type meters
       turbine-type meters


    100
    10
    Maximum water temperature, deg.
       for meters with Du 25...250
       for meters with Du 15 and 20

    150
    90
    Maximum water pressure, MPa
    1.6
    Water volume metering's basic relative error in the range of its consumption
    4 to 100%, %


    ± 2

    Fluid metering and consumption estimation range.

    Du, mm
    15
    20
    25
    32
    40
    50
    65
    80
    100
    125
    150
    200
    250
    Consumption , m/h
    Q min
    Q max

    0.03
    3

    0.05
    5

    0.14
    7

    0.24
    12

    0.3
    20

    1.5
    40

    1.5
    70

    1.9
    110

    2.5
    180

    5.5
    250

    5.5
    350

    12
    650

    20
    1200

    Primary consumption converters' basic dimensions and weight.

    Du, mm
    15
    20
    25
    32
    40
    50
    65
    80
    100
    125
    150
    200
    250
    H, mm
    L, mm
    M, mm
    75
    170
    0.5
    75
    230
    0.6
    110
    340
    2.2
    110
    400
    4.2
    110
    438
    4.7
    220
    200
    15
    230
    200
    17
    240
    225
    19
    255
    250
    22
    270
    250
    28
    345
    300
    37
    370
    350
    50
    415
    450
    62





             
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