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Flap-11C Plastic Magnetic Level Indicator

 Lightweight and easy to install, only about 1/5 weight of similar product that made of stainless steel.

 Made of high-quality PP material, stronger corrosion resistance.

 Display panel with broader design, greatly increases visual distance and viewing angle. With larger sharp scale and digits, display panel appears beautiful and elegant outlook.

 Exceeds national Ingress Protection standard IP54, Ingress Protection rating IP65 and IP66/67 are selectable for different applications.

 Magnetic switch and remote transmitter have all passed SIL2 / SIL3 Functional Safety Assessment, as well as certified for both Intrinsic Safety and Flameproof Enclosure explosion protection.

  • Flap-11C Plastic Magnetic Level Indicator is a commonly used corrosion resistant level meter. With the same measuring range, its weight is only about 1/5 of the standard type of Flap-11A, which greatly facilitates the installation. Also, Jiwei has developed innovative technologies, introduced full production process management and test for Flap-11C to improve the reliability and quality. Flap-11C is particularly suitable for chemical water treatment and wastewater treatment at power plant, printing and dyeing industry, as well as other acidic mediums which are not miscible with PP.


  • Flap-11 Magnetic Level Indicator series products are designed based on the law of equilibrium in U connected vessels and magnetic coupling effect to achieve real-time level measurements and display. As liquid level in the vessel varies up or down, magnetic float in the connected chamber rises or falls simultaneously. Because of magnetic coupling effect, float with a permanent magnet actuates magnetic interacted flaps in the display panel which is mounted beside chamber. Associated flaps will flip 180 degree to indicate liquid level. The front and back surface of flaps are coated with two colors respectively (red and white). Generally, when liquid level rises, the magnetic float moves up and makes associated magnetic flaps flip from white to red, and when liquid level drops, associated magnetic flaps flip from red to white. The interface between red and white flaps is the actual indicated liquid level inside the vessel. According to different chemical properties of measured medium, appropriate materials should be selected carefully for the chamber and the magnetic float. In addition, the weight, volume and structure of magnetic float have to be taken into consideration according to different density of measured liquid in order to achieve optimal measuring accuracy.


  •  Lightweight and easy to install, only about 1/5 weight of similar product that made of stainless steel.

     Made of high-quality PP material, stronger corrosion resistance.

     Display panel with broader design, greatly increases visual distance and viewing angle. With larger sharp scale and digits, display panel appears beautiful and elegant outlook.

     Exceeds national Ingress Protection standard IP54, Ingress Protection rating IP65 and IP66/67 are selectable for different applications.

     Magnetic switch and remote transmitter have all passed SIL2 / SIL3 Functional Safety Assessment, as well as certified for both Intrinsic Safety and Flameproof Enclosure explosion protection.


  • Fluid

    Density

    0.452g/cm³

    Viscosity

    ≤200cP

    Measurement parameters

    Measuring range

    Single section: 200-4000mm

    Multi-section: up to 20m or longer

    Accuracy

    ±5mm or ±10mm

    Material

    Chamber

    PP, Ф50, wall thickness 4.2mm

    Float

    PP

    Display panel

    Flap: aluminum or PA66 nylon, selectable

    Front cover: glass panel (standard) or acrylic sheet

    Operating conditions

    Process pressure

    -0.10.6Mpa

    Process temperature

    PP: -2080

    Ambient temperature

    -4050

    Output signal

    Switch signal

    Magnetic switch: 220V AC 3A, SPDT

    Continuous signal

    Remote transmitter: 420mA

    Process fitting

    Connection type

    Flange with customized dimension

    Material

    PP

    End fitting

    Upper vent

    Flat welding end

    Lower drain

    Lower valve (standard)

    Safety certification

    SIL Certificate

    SIL2 (HFT0) /SIL3 (HFT1)

    Protection rating

    IP65IP66/67

    Explosion-proof

    Flameproof Enclosure: Exd IIC T6 Gb (including magnetic switch and remote transmitter)

    Intrinsic Safety: Exia IIC T6 Ga (including magnetic switch and remote transmitter)

  •  Regeneration tank, refrigerant tank, hydrochloric acid tank and alkali tank in sulfate removal system with membrane method for depleted brine treatment at caustic soda plant.

     Wastewater tank at sewage treatment plant.

     Raw material tanks at dyeing plant.



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