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Flap-11A Standard Type Magnetic Level Indicator

Made of 316L stainless steel, suitable for the level measurements of corrosive liquids, it is typically applied in fields as follow:

Wash tank and waste water tank of Ion-exchange membrane electrolysis apparatus.

● Make-up tank of compound phosphate at hydrogen peroxide plant.

● Industrial waste water, lye tank.


  • Flap-11A Standard Type Magnetic Level Indicator, is made of 316L stainless steel, and is particularly suitable for measuring most corrosive liquids. The floating tube is with diameter of 51mm, which made of high quality seamless stainless steel tube, and can effectively avoid common defects, such as leakage, low pressure, unsightly appearance, and short life, etc. Also, Flap-11S has introduced innovative production and test processes to improve its reliability and quality.

  • Flap-11 Magnetic Level Indicator series products are designed based on communicating tube and the principles of magnetic coupling function to achieve real-time level measurements. When the measured liquid’s level in the vessel changes, the magnetic float in communicating tube will go up and down, and the permanent magnet steel inside the magnetic float makes the magnetic flaps of the indicator outside the communicating tube turn by 180° which is driven by the magnetic coupling function. Usually the front and back surface of flaps are coated with two different colors respectively (normally red and white) to indicate the actual liquid level inside the vessel. When the level of vessel rises, the flaps turn from white to red, and when the level of vessel drops, the flaps turn from red to white, at the red and white junction, the actual level of vessel is indicated. According to different chemical properties of the measured medium, appropriate materials for the communicating tube should be applied. In order to achieve to the best accuracy of measurement, the magnetic float’s weight, volume and structure have to be satisfied with the density of measured liquid.

  • (1) Indicator panel and magnetic flaps uses widened designmake visual distance and viewing angle increase greatly, the ruler and its figures are bolder and clearer.

    (2)Unique design of end cap of the indicator panels and glass adhesive sealing technology, ensure the level of ingress protection reach to IP66/67.

    (3)Accessory magnetic switches and remote transmitters have got double certifications of Explosion Proof and Intrinsically Safety.

    (4)Made of 316L seamless stainless steel tube, it is suitable for most corrosive liquid.

  • Fluid

    Density

    0.452g/cm3

    Viscosity

    ≤0.05Pa.s

    Measurement parameters

    Measuring range

    3005600mm

    Accuracy

    ±5mm or ±10mm

    Material specifications

    Measuring tube

    316L ,Ф51, The thickness depending on the process condition

    Float

    316L

    Indicator panel

    Aluminum, Max.400

    Operating conditions

    Process pressure

    -110MPa

    Process temperature

    -40400

    Ambient temperature

    -4080

    Signal output

    Switch

    220VAC 3A, SPDT

    Transmitter

    420mA

    Process connection

    Connection type

    Flange, customization

    Materials

    316L

    End fittings

    Upper vent

    flat welding cap, also can be configured flange, cocks, 1 / 2” NPT ball

    Lower drain

    1 / 2” NPT ball, also can be configured flange and cocks

    Additional devices

    steam jacket

    customization

    electric heating

    customization

    cryogenic insulation / heat insulation

    Synthetic rubber, asbestos, Polyolefin

    Anti-frost

    Indicator using Anti-frost plate, used in a temperature less than -5 occasion

    Safety certification

    Protection rating

    IP66/67

    Explosion-proof

    Exd IIC T6, Exia IIC T6(switch and transmitter)

  • ● The level measurement of wash tank and waste water tank of Ion-exchange membrane electrolysis apparatus.

    ● The level measurement of Make-up tank of compound phosphate at hydrogen peroxide plant.

    ● Applied in industrial waste water, lye tank.

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