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Flap-11Px Lined Type Magnetic Level Indicator

Float tube is made of 304 stainless steel lined with PTFE, mainly used to measure strong corrosive liquid. It is typically applied in fields as follow:

 Salt water tanks, lye recycling, dechlorination tower, chlorate decomposition, high purity hydrochloric acid storage tank of ionic membrane electrolyzer.

 Ammonia tank.

 The liquid level of monomer tank at PVC production plant.


  • Flap-11Px Lined Type Magnetic Level Indicator uses unique lining technical design, makes lining junction of the buoy and the process connect flange achieve to the best-match condition, effectively avoids corrosion damage made by accidental medium leakage, which is usually caused by extrusion fracture when assembling. Also, Flap-11S has introduced innovative production and test processes to improve its reliability and quality. The product applies for one inventive patent (application NO.201710919511.7) and two authorized utility model patents (patent NO. 201621028672.4 and NO.201721282291.3). 


    Flap-11P is mainly used to measure strong corrosive liquid, and, is widely applied to chemical industry, oil refining, storage and transportation, water treatment and other industries.

  • 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) The lining junction between floating tube and process connection flange uses unique lining technology effectively avoids corrosion damage made by accidental medium leakage, which is caused by extrusion fracture when assembling. 

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

    (3) Level of Ingress Protection of IP65 and IP66/67 are available, exceeding national standard requirement of IP54;

    (4) A variety of patented lining technique is used and F4/F46 lining buoy is provided, suitable for wider range of corrosive measurement.

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

  • Fluid

    Density

    0.82g/cm3

    Viscosity

    ≤200cP

    Measurement parameters

    Measuring range

    Single section: 200-5600mm 
    Multi-section: up to 20m or more

    Accuracy

    ±5mm or±10mm

    Material specifications

    Bouy

    304/316L stainless steel with F4/F46 lining, Ф57

    Float

    304 with F46 out-lined

    Indicator panel

    Optional aluminum flap or PA66 nylon flap, and optional cover plate of glass (standard) or acrylic.

    Operating conditions

    Process pressure

    0~1.6MPa

    Process temperature

    Max.120

    Ambient temperature

    -4080

    Signal output

    Switch

    220VAC 3A, SPDT

    Transmitter

    420mA

    Process connection

    Connection type

    Flange, customization

    Materials

    304/316L stainless steel with F46 lining

    End fittings

    Upper vent

    flange

    Lower drain

    Flange, also can be configured lined

    Additional devices

    cryogenic insulation / heat insulation

    Rubber and plastic cotton, asbestos, polyester fiber

    Anti-frost

    Used in a occasion that temperature less than -5

    Safety certification

    Protection rating

    IP65IP66/67

    Explosion-proof

    Ex d IIC T6, Ex ia IIC T6 (magnetic switch and transmitter)


  •  Mounted in Salt water tanks, lye recycling, dechlorination tower, chlorate decomposition, high purity hydrochloric acid storage tank of ionic membrane electrolyzer.

     Applied in Ammonia tank  

     Monitoring the liquid level of monomer tank at PVC production plant


  • Flap-11Px Lined Type Magnetic Level Indicator



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