Magnetic Flapper Level Indicator

Magnetic Flapper Level Indicator
The flip-column magnetic float level gauge uses a float as the measuring element and a magnet-driven flip-column display. It does not require energy. It is suitable for various environments such as low temperature to high temperature, vacuum to high pressure. It is an ideal level for petroleum, chemical and other industrial sectors. Measure the product. The magnetic float level gauge is equipped with upper and lower limit switch outputs, which can realize remote alarm and limit control. The magnetic float level gauge is equipped with a transmitter, which can realize the remote indication, detection and control of the liquid level.
Download Attachment
Whatsapp : +86 17391983629‬
Email : Jayna@xinyiyb.com
CONTACT US

Product Description


PRINCIPLE

The magnetic flap level gauge (also known as the magnetic float level gauge) is developed based on the principle of buoyancy and magnetic coupling. When the liquid level in the container under test rises and falls, the magnetic float in the body tube of the level gauge also rises and falls, and the magnetic steel in the float is transferred to the magnetic turning column indicator through magnetic coupling, driving the red and white turning columns to turn 180° , When the liquid level rises, the turning column turns from white to red, when the liquid level drops, the turning column turns from red to white. The red and white junction of the indicator is the actual height of the liquid level inside the container, so as to achieve a clear indication of the liquid level. 

                                                                                                                                                     FEATURES

1. Basic type


        According to the principle of buoyancy, the float moves up and down with the rise and fall of the liquid level in the measuring tube. The magnetic steel in the float drives the red and white turning columns to turn 180° through magnetic coupling. When the liquid level meter rises, the columns turn. It turns from white to red, and turns from red to white when descending, so as to realize the indication of the liquid level.


    2. Upper and lower limit switch output


        The controller is installed at the upper and lower limit positions set by the user on the main tube of the level gauge. The controller has a reed switch with self-holding function or an alarm switch without memory function according to user requirements. The magnetic float is used to follow The movement of the liquid level causes the reed switch to act to realize alarm or limit control.


    3. Teletransmission


        Install a transmitter on the float level gauge. The transmitter is composed of a measuring unit and a transmitting unit. It moves up and down through the magnetic float, and through the magnetic coupling, the measuring elements in the guide rod act in sequence to obtain the resistance signal change. Convert into 0~10mA or 4~20mA standard current signal output, and connect with digital display instrument or computer to achieve the purpose of remote transmission.


    4. Electronic two-color type


        The UHZ-D electronic two-color magnetic float level gauge is a new generation product of the magnetic flap level gauge. It can clearly display the level of the red and green light beams. The observation distance is 60M during the day and 200-300M at night. The magnetic flap level gauge is easy to stick to dust when used for a long time, especially in steel mills, it is easy to stick fine iron filings over a long period of time, covering the red and green colors of the magnetic flap, making it invisible to the liquid level. The biggest disadvantage of the magnetic flap level gauge is that it can't show light and can't be observed at night. The UHZ-D electronic two-color magnetic float level gauge solves the above problems and breaks through the shortcomings of similar products in the small measurement range in circuit design. While ensuring low power consumption, it can customize any measurement height.


        This product is suitable for petroleum, chemical, metallurgy, food, wine, medicine, chemical fiber, fertilizer and environmental protection power water supply departments, especially for users such as steel mills, coking plants, power plants, etc., to measure pressure vessels or open vessels The liquid level of the inner liquid can be directly indicated on the spot by the liquid level gauge, and a liquid level alarm switch can also be attached to realize remote liquid level alarm and limit control.


        Compared with the magnetic flap level gauge, its main features:


        Luminous display: red and green light beams can clearly display the liquid level, suitable for application in dark places, and more eye-catching observation at night;


        The liquid level display is clear, the color is bright, the observation angle is large, the visual distance is long, and it is not easy to stick dust when used for a long time;


        Reasonable design, simple structure, convenient maintenance, and the measured medium is completely separated from the display system;


        It is applicable to a wide range of media and has good sealing performance when measured in corrosive solutions such as hydrochloric acid and sulfuric acid.


    5. Steam jacket type


        A steam heating layer is added to the measuring cylinder to maintain the temperature of the measured medium in the measuring cylinder and prevent the measured medium from freezing and freezing due to changes in the ambient temperature.


    6. Electric heating type


        An electric heating layer is added to the measuring cylinder, and an electric heating device is built in. The heating device transfers heat evenly to the measuring cylinder through the heat-conducting oil, which plays a role of heating and heat preservation.


        Note: Please fill the heat transfer oil to the safety line before the first use, otherwise the heating device will be damaged.

Installation form

Side-mounted

Top loading

Installation 

distance

(Measuring range)

200mm to 6000mm or even longer,

More than 6m can be made in sections, plus support frame

200mm to 6000m can be customized according to user requirements

Work pressure

0.6,1.6,2.5,4.0Mpa, 

10MPa to 35MPa

0.6 ,1.6 ,2.5Mpa, 4.0MPa

Medium density

>0.5g/cm3

>0.76g/cm3

Connecting flange

Stainless steel

Flange 20-40 (DN20PN4.0)

(GB9119—88)

Flange 200-25 (DN200PN2.5)

(GB9119—88)

ABS

Flange 20-10 (DN20PN1.0)

(GB9119—88)

Flange 200-6 (DN200PN0.6)

(GB9119—88)

Main body material

Cr18Ni9Ti, ABS, PP-R, PVC, stainless steel lined with tetrafluoroethylene

Medium temperature

Stainless steel -40~450℃, PPR-120℃, ABS-70℃

Ambient temperature

-40~+450℃

Indication error

±10mm

Medium viscosity

≤1st(10-4m2/s)

Upper and lower limits

Switch output

 

Control sensitivity: 10mm

Output contact capacity: AC220V 2A

Contact life: 5×104 times

Explosion-proof features: ExiaIICT4 intrinsically safe

Teletransmission,

   Continuous display

Accuracy: ±1.5%

Output load: 750Ω

Output signal: 0-10mA output, 220V AC power supply

4-10mA output, 24V DC two-wire system

Explosion-proof features: ExiaIICT4 intrinsically safe



Message

Submit

Products Recommended

Pressure Transmitters for Industrial Pressure Measurement

Xinyi Instrument supplies pressure transmitters for process control, hydraulic systems, petrochemical plants, water treatment, HVAC, power generation and general industrial pressure monitoring. Our pressure transmitter range covers gauge pressure, absolute pressure, differential pressure, high temperature media and digital communication applications.

Choose from compact pressure transmitters, smart 3051 differential pressure transmitters, diaphragm seal models, RS485 digital pressure transmitters and high frequency dynamic pressure sensors. Standard outputs include 4-20 mA, voltage output, HART and RS485 Modbus options, with stainless steel wetted parts and custom process connections available on request.

Pressure Transmitter Parameters

Pressure Types Gauge, absolute, negative pressure, differential pressure
Measuring Range From low differential pressure to high pressure ranges up to 100 MPa, depending on model
Output Signals 4-20 mA, 0-5 V, 1-5 V, 0-10 V, RS485 Modbus, HART options
Accuracy Typical options include 0.1%, 0.2%, 0.25% and 0.5% FS
Process Connection M20 x 1.5, G1/4, G1/2, NPT and customized thread connections
Wetted Materials Stainless steel, 316L diaphragm and corrosion-resistant sealing options
Media Water, oil, gas, air, steam and compatible liquid or gas media
Applications Pipeline pressure, tank level, flow differential pressure, hydraulic pressure and automation systems

Recommended Pressure Transmitter Series

  • Xinyi YW-150 - differential pressure transmitter for stable industrial measurement.
  • Xinyi YW-3051DP - smart differential pressure transmitter for process control.
  • Xinyi YW-130 / YW-140 - compact pressure transmitters for general pressure monitoring.
  • RS485 Digital Pressure Transmitter - Modbus communication for remote monitoring systems.
  • High Temperature Pressure Transmitter - designed for hot media and demanding process conditions.
  • Siemens, Yokogawa and ABB Options - international brand transmitters available for project matching.

Pressure Transmitter FAQ

What is a pressure transmitter used for?

A pressure transmitter converts the pressure of liquid, gas or steam into a standard electrical signal for PLC, DCS, recorder or control instrument input. It is widely used for pipeline pressure, tank level, flow measurement and process safety monitoring.

How do I choose the right pressure transmitter?

Confirm the pressure range, pressure type, medium, temperature, output signal, accuracy, installation thread, electrical connection and environmental requirements. For corrosive media, high temperature or sanitary applications, diaphragm material and sealing structure are especially important.

What is the difference between gauge, absolute and differential pressure transmitters?

Gauge pressure transmitters measure pressure relative to atmospheric pressure. Absolute pressure transmitters measure pressure relative to vacuum. Differential pressure transmitters measure the pressure difference between two points and are commonly used for flow, filter and level measurement.

Can Xinyi Instrument provide customized pressure transmitters?

Yes. Xinyi Instrument can support customized pressure ranges, process connections, output signals, cable length, display options and model selection for different industrial applications.