Corrosion-resistant magnetic level indicator is used for measuring the level of various corrosive and toxic liquids in storage tanks during industrial production. It is particularly suitable for acidic and alkaline solutions with low operating temperatures and pressures. The liquid-contacting parts of this level gauge are made of PP or PVC material, and can also be made of stainless steel lined with PTFE using a stretching process. The entire display has no blind spots, is safe and reliable, and has a long service life.
Features
Technical Parameters
| Applicable Liquids | Density | 0.45~2g/cm3 |
| Viscosity | ≤200cp | |
| Measurement Parameters | Measuring Range | Single section 200~4000mm, multi-section structure up to 20m or more |
| Accuracy | ±5mm or ±10mm | |
| Material and Specifications | Float | PP, Φ50, wall thickness 4.2mm; 304/316L inner lining F4(PTFE)/F46(FEP), φ57 |
| Float | PP; 304 outer lining F46(FEP) | |
| Flip Indicator | All-aluminum flap, PA66 nylon flap, glass cover (standard), acrylic sheet optional | |
| Operating Environment | Process Pressure | -0.1~1.6MPa |
| Process Temperature | ≤120℃ | |
| Ambient Temperature | -40～80℃ | |
| Signal Output | Switch Signal | Magnetic switch: 220V AC 3A, SPDT |
| Continuous Signal | Reed remote transmitter: 4~20mA | |
| Process Connections | Connection Method | Flange, size according to customer requirements |
| Process Material | PP; 304/316L inner lining F46 | |
| End Accessories | Upper Exhaust | Flat welded head/flange |
| Lower Drainage | Standard configuration with lower drain valve |
Featured Applications
The corrosion-resistant magnetic level indicator is particularly suitable for measuring the level and interface of corrosive liquids with relatively low requirements and cost sensitivity.
The side-mounted, lined magnetic level indicator (PTFE) is suitable for level measurement in corrosive media at high operating temperatures. It employs an advanced stainless steel liner with PTFE stretching and flanging technology, resulting in a reliable structure and long service life. It is the preferred choice for level measurement of highly corrosive media such as hydrofluoric acid.
The lined magnetic level indicator is available with F4 (PTFE) or F46 (FEP) lined floats. The F4 (PTFE) liner is suitable for level measurement of most highly corrosive liquids; the F46 (FEP) liner is suitable for level measurement of highly penetrating and highly corrosive liquids, such as liquid chlorine and bromine.
The PP type magnetic level indicator is a commonly used corrosion-resistant level gauge. For the same measurement range, it weighs only about 1/5 of a standard magnetic level gauge, greatly facilitating on-site installation. It is suitable for electrochemical water treatment, sewage treatment, printing and dyeing industries, as well as for measuring other acidic media immiscible with PP.
Application Scope of Corrosion-Resistant Materials
| Code | Name | Application Scope |
| PVC | Polyvinyl Chloride | Sewage, mildly corrosive liquids |
| PP | Polypropylene | Resistant to acids, alkalis, greases, oils, and oil-based agents |
| PE | Polyethylene | Resistant to dilute acids, alkalis, alcohols, gasoline, solvents |
| PTFE | Polytetrafluoroethylene | Resistant to all chemicals |
| PVDF | Polyvinylidene Chloride | Resistant to oils, greases, acids, alkalis, solvents |
| PUR | Polyurethane | Resistant to fuels, hot oils, and oil-containing liquids |
| PA | Polyamide | Resistant to oils, greases, solvents |
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Sino-Inst’s corrosion-resistant magnetic level indicators are suitable for measuring the liquid level and interface of liquids in containers. In addition to local indication, they can be equipped with remote transmitters and alarm (control) switches, offering comprehensive indicating functions. They feature a wide measuring range, are not limited by the height of the storage tank, and the indicating mechanism is completely isolated from the measured medium. They offer excellent sealing, high reliability, and safe operation.
We support customization of various materials, such as PP, UPVC, PPH, PVDF, CPVC, 304 stainless steel with PTFE lining, or PTFE coating. Please feel free to contact our sales engineers!