Водяной термостат STM-WF

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    Характеристики

    Модель STM-607WF STM-910WF STM-1220WF STM-2430WF STM-3650WF STM-4875WF
    Max.Temp. 120°C/248°F
    Heater kW 6 9 12 24 36 48
    Pump Power kW, 50/60Hz 0.55/0.55 0.75/0.75 1.1/1.5 2.2/2.2 3.0/4.0 5.5/5.5
    Max. pump Flow (50/60Hz) L/min 58/67 116/133 168/216 267/333 267/398 533/580
    gal/min 15.3/67.3 30.6/35.1 44.4/57 70.5/88 70.5/105 140.7/153
    Max. pump Pressure (bar) 50/60Hz 2.8/2.6 2.8/2.6 2.9/2.7 2.9/2.9 3.4/4.3 4.5/3.8
    Heating Tank Number 1 1 1 2 3 4
    Heating Tank Capacity L 3.0 3.0 3.2 7.2 12.0 16.0
    gal 0.8 0.8 0.85 1.9 3.2 4.2
    Cooling Method Direct
    Mould Coupling inch 1 (1x2) 1 (1x2) 1 1/2 (1x2) 1 1/2 (1x2) 1 1/2 (1x2) 1 1/2 (1x2)
    Inlet/Outlet inch 1/1 1/1 1 1/2 / 1 1/2 1 1/2 / 1 1/2 1 1/2 / 1 1/2 1 1/2 / 1 1/2
    Dimensions (HxWxD) mm 655x320x750 655x320x790 675x320x830 855x434x840 855x474x940 955x474x1100
    inch 25.5x12.5x29.3 25.5x12.5x30.8 26.3x12.5x32.3 33.3x16.9x32.8 33.3x18.5x36.7 37.2x18.5x42.9
    Weight kg 60 85 85 156 180 242
    lb 132 187 187 343 397 532
    Цена
     
    ■ Features

    • Large water flow design with a maximum working tem¬perature of 120°C.
    • In build weekly timer with °C°F unit conversion.
    • P.LD. multi-stage temperature control system can main¬tain a mould temperature with an accuracy of ±0.5°C.
    • In build multiple safety with display and alarm buzzer, such as reverse phase, pump overload, overheat, and low water pressure.
    • Direct cooling with excellent heating exchange. Auto refilling device cools down the temperature to set value directly.
    • Modbus RTU data communication via RS485.

    ■ Options

    • Displays of mould temperature and return water tem¬perature of mould are optional, and add "TS" at end of the model code.

    Рисунок2.jpg

    ■ Application

    STM-WF series "Large Flow" water heaters are used to heat up the mould and maintain temperature, and also they can be used in other similar applications. Compared with standard water heaters STM-W, this series of machines adopt large flow pump that are especially applicable to large flow and constant temperature productions, such as plates and extrusion molding etc. Besides, this series of models have multiple options and accessories to meet different production demands.
    Working Principle

    Рисунок3.jpg

    Pump Performance

    Рисунок4.jpg


    Reference formula of Mould Controllers model selection
    Heater Power (kW) = mould weight (kg) x mould specific heat (kcal/kg'O) x temperature difference between mould and environment (C) x safety coefficient / heating duration / 860
    Notes: safety coefficient range 1.3-1.5.
    Flow Rate (L/min) = heater power (kw) x 860 / [heating medium specific (kcal/kg'O) x heating medium density (kg/L) x in/outlet temperature difference CO) x time (60)]
    Notes: Water specific heat = lkcal/kgt: Heating medium oil specific heat =0.49kcal/kgiC Water density =lkg/L Heating medium oil density =0.842kg/L
    Time for heating=the time needed to heat from room temperature to set temperature


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