Product Description


KLINGER level gauges, originally invented by Richard Klinger more than 110 years ago, still serve to reliably indicate the liquid level in boilers and vessels today.

An efficient process operation demands high-performance measurement installations. KLINGER fluid monitoring products stand out from the competition as a result of their excellent mechanical strength and outstanding durability versus alkaline and acid solutions as well as boiler water. Furthermore, continuous quality checks permanently ensure best-in-class measurement performance, long-term stability and the resource-conserving properties that have made this product range “trusted. worldwide.”

Liquid level gauges feature a reflex glass within the body. An observation slot on the other side allows for clear reading of non-hazardous liquids. With regard to applications that involve either hazardous or toxic liquids or gases, operators around the world rely on KLINGER magnetic level gauges.

KLINGER ITALY designs, develops and manufactures level gauges to be distributed all over the world.

All our level gauges are ISO 9001 certified and subject to the strictest controls according to the ASME/EN standards.

Klinger produces level gauges to suit virtually any application, available in single or multi-section, with variety of shut-off valves, cocks and accessories. Basically there four main types, described briefly as follows:Reflex Level Gauge

Manometer Cocks

Manometer cocks feature a simple and compact design (only one moving part) which guarantees high operation safety and long durability. These robust shut-off cocks are specifically designed to meet an operator’s high measurement engineering requirements. KLINGER manometer cocks stand out due to their reliability and efficiency.



Transparent Level Gauges

In transparent level gauges the medium is contained within two glasses with smooth surfaces. The level of the medium level can easily be observed by looking through the glass. Thanks to resistance of the utilized materials, this level gauge is particularly suitable for use with aggressive media or steam. Protective mica shields can optionally be installed between the medium and the glass.

In order to improve visibility under special operating conditions, an illuminator can be mounted on one side of the transparent level gauge.

A105 and SS 316L are utilized as standard materials – alloy or other materials are available on demand.


  • Pressure up to Class 1500 (250 bar)
  • Temperature range -196 deg C to +400 deg C
  • Suitable for corrosive, viscous and interface application
  • Can be illuminated



Reflex Level Gauges

Reflex level gauges allow the medium to be viewed through a reflex glass: The side of the glass exposed to the medium has a prismatic surface, while the other side is smooth. The medium level inside the level gauge is indicated by means of the light refraction principle, i.e.  the liquid-filled area completely absorbs the rays of light and appears dark, while the rays of light are fully reflected in the gas / air-filled area, which subsequently appears bright.

Reflex level gauges offer great advantages in terms of low purchase and maintenance costs as well as with regard to easy level reading. However, they cannot be used in certain cases, for example when the separation level between two liquids has to be read, when discerning the liquid color is required or when high-pressure water steam has to be measured.

A105 and SS 316L are utilized as standard materials – alloy or other materials are available on demand.


  • Distinct black and silver indication
  • Pressure Up to ANSI 1500 (250 bar)
  • Temperature Range -196 deg C to +400 deg C



Bi-Color Level Gauges

Bi-color level gauges are primarily used to measure high-pressure water steam. These gauges feature two flat transparent glasses, which are mounted at an angle to each other. Together with the gauge body, they form the chamber containing the medium.

A special red and green illuminator, which serves to create a double lighting system, is mounted on the rear side of the gauge body. In this context, red is used for steam and green for the liquid.

As standard material A105 is utilized.

Bi colour Level Gauges



Magnetic Level Gauges

KLINGER® magnetic level gauges are particularly suitable for applications featuring toxic or hazardous liquids or gases or whenever an immediate and safe response to a level change is required. Magnetic level gauges provide perfect visibility and a continuous indication of the level of the medium. Readings can be taken either locally on a display or remotely.

The simple concept of the magnetic level gauge allows for flexible design to adapt to a variety of installation requirements. They can be manufactured to an almost unlimited length and in any configuration.

Specification :

  • Intimidate and accurate response to level changes, giving clear and sharp legibility
  • Continuous control of liquid level
  • Local and remote display
  • Alarm switch facilities
  • No leak to atmosphere
  • Particularly suitable for dangerous and toxic fluids
  • Simple to engineer and easy to install


Bi colour Level Gauges



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