Steam is no problem for GWR level measurement

Magnetrol International has a new probe, specifically developed to meet the unique challenges posed by level measurement in saturated steam applications.

Accurate and effective level measurement in applications involving saturated steam, such as boilers, de-aerators and boiler feed water heaters, can be a problem for traditional level measurement devices.

For example, density and dielectric changes along with conductivity fluctuations, can impair the accuracy and reliability of displacer and capacitance level measurement instruments.

Now Magnetrol International has a new probe, specifically developed to meet the unique challenges posed by saturated steam applications.

The Eclipse 705 with 7MS probe, is the first GWR (guided wave radar) level measurement device unit to have obtained official approval for use in saturated steam applications.

Based on the successful Eclipse family of GWR devices, the 705 and 7MS combination is the result of two years of extensive development and testing.

Capable of withstanding process conditions of 110bar at 320C, the Eclipse 705 is ideally suited for water/steam applications.

Use of materials such as 316 stainless steel (1.4401), alumina and Peek create a robust probe that withstands the high temperature, high pressure and corrosive nature of steam applications.

The alumina and Peek insulators limit the temperature at the Aegis O-rings to 65C.

Aegis is a material that is resistant to steam, rated up to +200C and is highly regarded in the chemical industry, whereas Peek is a high-temperature plastic typically used in steam valves.

The unit, which is lightweight, easy to handle and allows for quick, simple configuration, is unaffected by changes in specific gravity, so it is an excellent alternative to torque tube displacer transmitters and DP transmitters.

Additional benefits include no moving parts, so maintenance and associated costs are reduced.

Typical applications for the Eclipse 705/7MS probe combination are wherever accurate and reliable level measurement is required in saturated steam applications, such as controlling water levels in boilers in power generation and oil/chemical refining plants.

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