Level indicators

Bypass level indicators, sight glasses level indicators and glass tube indicators

Level indicators Bypass level indicators, sight glasses Level indicators and glass tube indicators, level indicators for tank construction and SKID process plant, pressure vessels, storage tanks

Level indicators are indispensable components for level control in containers and process plants. They ensure process reliability, prevent overfilling and enable precise monitoring – whether in chemical, energy, food or water technology. Our selection includes bypass level indicators, sight glass indicators and glass tube indicators in various designs for standard and high-pressure applications.

Our recommendation for level indicators

Comparison table of level indicators

FeatureBNALGGType 120Type 121Type 126Type 128
Nominal pressureup to 400 barup to 250 barPN 25PN 25PN 10PN 25
Nominal size DN 15 –
DN 100
DN 15 –
DN 50
DN 15 –
DN 20
DN 15 –
DN 25
DN 15DN 15 –
DN 25
Temperature-196 °C to
+450 °C
-196 °C to
+374 °C
-10 °C to
+200 °C
-10 °C to
+200 °C
-10 °C to
+100 °C
-10 °C to
+200 °C
MaterialStainless steel,
PP, PVDF
Steel,
CrNi steel
Brass, stainless steel 1.4571Stainless steel 1.4571BrassStainless steel 1.4571
GasketPTFE, special optionGraphite, micaFlat gasketFlat gasketFlat gasketFlat gasket
Special featureLevel indicator without power, magnetic displayDirect display with reflective/
transparent glass
Compact glass tube display for tank constructionIntermediate holder for glass tube indicatorValve fluid level indicator, lightValve fluid level indicator with flange

Advantages of our selection of level indicators

Broad portfolio

For standard, high-pressure and special applications

Energy-independent

Mechanical display without auxiliary power

Robust materials

Stainless steel, special materials for aggressive media

Individual customization

Special connections, heating jacket, ATEX-compliant versions

Certified quality

CE, ATEX, IECEx, PED-compliant

Level indicators in tank construction – precision and safety for your processes

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.

Armaturenfabrik Tank construction made of stable and stainless steel, level indicators Bypass level indicators Pressure vessels Oil, liquids, gases, float valves

FAQ – Frequently asked questions about level indicators

What types of level indicators are there?

Bypass, sight glasses and glass tube indicators for different applications.

Yes, BNA up to 400 bar and LGG up to 250 bar.

No, all displays function mechanically without auxiliary power.

Yes, variants are available for potentially explosive atmospheres.

Yes, special materials, connections and heating jackets are possible.

Cookie Consent with Real Cookie Banner