Magnetic Level Indicators
A magnetic level indicator shows the level as a magnetic float, rising with the liquid in a chamber beside the tank, turns the red-and-white flaps outside. The indicator never touches the medium, giving clear remote reading without risk of glass breakage or gasket leaks.
Stainless standard series, lightweight thin type, PVC type for chemicals and boiler type for steam boilers are offered in stock lengths from 300 mm to 2000 mm. Adding a level switch and proportional transmitter enables pump and alarm control.
Main Applications
- Steam boilers (boiler type)
- Pressurised process tanks
- Fuel and water tanks (thin type)
- Acid and chemical tanks (PVC type)
- Condensate and feed water tanks
- Tall tanks needing remote reading
Technical Data
| Measuring principle | Magnetic float + red-and-white flap indicator |
|---|---|
| Chamber material | Stainless steel AISI 304 / 316 / 316L; PVC on PVC type |
| Float | Stainless AISI 316L (PN16, PN25, PN40 options) |
| Flaps | Aluminium (standard), plastic (thin type) |
| Pressure class | PN10 / PN16 / PN25, optional PN40; thin type max. 10 bar |
| Temperature | Up to 160 °C; 200 °C option (by model) |
| PVC type | DN20 PN6 flange, 6 bar (at room temperature), 70 °C |
| Stock lengths | 300, 500, 700, 1000, 1200, 1500, 2000 mm (product range) |
| Boiler type lengths | 310 – 900 mm, PN16 (product range) |
| Connection | Flange (DIN, ANSI, JIS), union, socket or nipple |
| Drain | 3/8″ plug; optional drain valve |
| Options | Level switch, proportional transmitter, level scale |
Material Options
| Part | Standard series | Thin type | PVC type |
|---|---|---|---|
| Chamber | Stainless AISI 304 / 316 / 316L | Stainless steel (by model) | PVC |
| Float | Stainless AISI 316L | Stainless steel | PVC |
| Flaps | Aluminium | Plastic | Aluminium |
| Pressure / temperature | Up to PN40 / 160 °C | 10 bar / 160 °C | 6 bar / 70 °C |
Which material? Standard series or boiler type are preferred on steam boilers and pressurised tanks, thin type on atmospheric fuel and water tanks, and PVC type for acid and alkaline solutions. The float is selected by medium density and operating pressure.
Advantages
Unbreakable Indicator
- Medium never touches the indicator
- No glass or gasket leak risk
Remote Reading
- Red-and-white flaps clearly visible
Automation Ready
- Switches and transmitters can be added
Four Series
- Stainless, thin, PVC, boiler type
Long Lengths
- Single piece up to about 6 m
Construction and Design Features
- Stainless or PVC chamber mounted beside the tank
- Magnetic float inside
- Red-and-white flap rail outside the chamber
- Flanged, threaded or union process connections
- Drain plug or valve at the bottom
Send the centre-to-centre distance, pressure-temperature and medium type; we will quote the right series and length with any switch and transmitter options.
How to Choose?
- Choose the seriesPick standard, thin, PVC or boiler type by pressure, temperature and medium.
- Measure the lengthTake the distance between the upper and lower tank connection centres.
- Select the connectionMatch the flange standard or threaded connection to the tank.
- Add automationPlan switches for pumps and alarms and a transmitter for remote monitoring.
Complementary Products
Why ORFA?
Other Level Control Devices
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Details →Capacitive Level Sensors
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Details →Solids Level Switches
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Magnetic Level Transmitter
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Plastic Level Switches
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Details →Radar Level Transmitters
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Reflex Glass Level Gauges
Reflex glass level gauges show the liquid level clearly in steam boilers and pressure vessels.
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Level Indicators
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Level Control Panels and Sensors
Level control panels and sensors are control systems that automatically start and stop pumps according to the level in tanks and wells.
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Liquid Level Electrodes
Liquid level electrodes detect the level of conductive liquids by electrode contact and send a signal to the level relay.
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Float Level Switches
Float level switches change contact by means of a float moving with the liquid level and control a pump or alarm.
Details →Float Valves
Float valves open when the water level in a tank drops and close when it is full, keeping the level mechanically.
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Tank Level Switches
Tank level switches signal at set levels in storage tanks to control filling, emptying and alarms.
Details →Get a quote for your project
Our sales team will prepare the best solution for your needs.