SKU NA-AA Category

Level indicators and accessories

Robust level indicators with glass tube – precise level control for containers

Selection

Product information

The level indicators from Armaturen Arndt offer reliable and direct control of the liquid level in containers and pipelines. Whether glass tube indicators, valve liquid level indicators or intermediate holders – all products are designed for use in tank construction, the chemical, energy and food industries. With high-quality materials such as brass and stainless steel 1.4571, they guarantee durability and safety even under demanding conditions.

Special features

  • Direct level indicator without auxiliary power
  • Variants made of brass or stainless steel for different applications
  • Large selection of connection types: thread, flange, valve
  • Glass tubes made of AR glass, optional DURAN glass or Plexiglas
  • Individual lengths up to 2000 mm on request

Advantages

  • Robust and durable thanks to high-quality materials
  • Flexible use in containers, tanks and pipelines
  • Easy installation thanks to standardized connections
  • Customization for special applications possible

Variants

  • Type 120: Liquid level indicator for glass tubes (brass/stainless steel)
  • Type 121 / 121F: Intermediate holder for glass tube indicators (thread or flange)
  • Type 126: Valve fluid level indicator, light version (brass)
  • Type 128: Valve fluid level indicator, flanged connection (stainless steel)
  • Glass tubes: AR glass, optional DURAN glass or Plexiglas in lengths up to 2000 mm

Areas of application

  • Tank construction and tank systems
  • Chemical and petrochemical industry
  • Energy and power plants
  • Food and beverage industry
  • Water and wastewater technology
FeatureType 120Type 121Type 126Type 128
Nominal pressurePN 25PN 25PN 10PN 25
ConnectionG ½” or
G ¾”
Male thread or flangeG ½” (male thread)Flanged connection
Glass diameter13 mm /
16 mm
13 mm /
16 mm /
20 mm
13 mm13 mm /
20 mm /
25 mm
materialBrass or stainless steel 1.4571Stainless steel 1.4571brassStainless steel 1.4571
Glass length30 mm /
44 mm
66 mm /
75 mm /
95 mm
28 mm40 mm /
90 mm

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

FAQs

What materials are available?

Brass and stainless steel 1.4571 for high corrosion resistance.

Yes, up to 2000 mm on request, also in DURAN glass or Plexiglas.

Yes, type 126 (brass) and type 128 (stainless steel) with valve connection.

Depending on type up to PN25 or PN10, valve versions up to PN25.

Yes, special connections and materials are available on request.

Insulation – In combination with fittings and containers

Our insulations are more than just accessories – they perfectly complement fittings and systems and increase efficiency, safety and adaptability.
Order and configure now.

We offer:

  • Custom-made insulating pads to fit your fitting
  • Heating jacket integration – reliable even under extreme conditions
  • Insulation jackets and pipe insulation for SKID assemblies – ideal for modular systems and complex systems
  • Special solutions for high temperatures – for power plants, the chemical and process industries
Armaturenfabrik Valve insulation High-temperature pipe insulation with IFS-Plast25 insulation pads and IFS-MW20 mineral wool for SKID systems, process plants

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