Level indicator without power – robust, precise, for extreme conditions
The bypass level indicator type BNA from WIKA offers a continuous, height-proportional level indication without auxiliary energy. Thanks to its robust design and corrosion-resistant materials, it is ideal for use in extreme process conditions such as high temperatures, aggressive media and high pressures.
| Characteristic | Value |
| Operating temperature | -196 to +450 °C |
| Operating pressure | Vacuum up to 400 bar |
| Limiting density | ≥ 340 kg/m³ |
| Materials | Stainless steel 1.4571, 1.4404, PP, PVDF |
| Display | Magnetic display, two-color |
| options | Magnetic switch, transmitter, heating jacket |
| Approvals | CE, ATEX, IECEx, GOST, DNV GL |
Level indicators are indispensable components in tank construction and process technology, as they enable continuous and reliable level control. They are used in storage tanks, pressure vessels, reactors and mixing vessels and ensure process safety by preventing overfilling or dry running.
Thanks to their robust design and the possibility of customization – for example with special connections, heating jackets or ATEX-compliant versions – our level indicators can be perfectly integrated into your system. They are suitable for aggressive media, high temperatures and pressures and can also be used in hygienic applications such as the food and pharmaceutical industries.
We not only offer standard solutions, but also customized versions that are precisely tailored to your requirements. This gives you a product that combines functionality, safety and durability – ideal for use in chemical, energy, water and food technology.
No, the display is purely mechanical via a magnetic effect.
For aggressive, flammable, toxic and hot liquids as well as heavily contaminated media.
Yes, ATEX and IECEx-compliant versions are available.
Yes, magnetic switches and level transmitters are optionally available.
Heating jacket, inner coating (PTFE/E-CTFE), food conformity and more.
Our insulations are more than just accessories – they perfectly complement fittings and systems and increase efficiency, safety and adaptability.
Order and configure now.
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