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Level measurement in the water/ steam circuit of a power plant

Optimize the life-cycle costs of your water/ steam circuit

Takes little steam to carry a large amount of energy; takes little water to damage the turbine

Major benefits of using steam as a heat transfer medium are that it is nontoxic, nonflammable, the equipment is inexpensive and requires little maintenance. Nevertheless, you may experience system safety issues, early equipment failures, poor steam system efficiency, frequent boiler shutdowns, damaged steam pipes and valves due to water hammer, vibration, corrosion and erosion, reduced capacity of steam heaters, and overloaded steam traps.

60 Mio $

is the cost of a 500MW steam turbine. If a revamp of the turbine is necessary, the encountered costs will be as expensive as the initial costs.

Steam turbine

Our Offering

Our commitment to you is to make the operation of your water/ steam circuit efficient and alleviate vacuum and density challenges that are slowing it down. We provide a complete range of solutions, technologies and services that meet your application requirements. Our level, pressure, flow, temperature, liquid analysis, etc., measurement instruments are manufactured to the highest quality standards to guarantee consistent performance and compatibility. We offer complete bypass solutions that:

  • Optimize your life-cycle costs

  • Reduce planning and procurement time

  • Minimize loading and mounting costs

  • Are compliant with power plant safety standards (PED)

  • Reduce maintenance costs

Increase the efficiency of the water/ steam circuit

  • Process map of a water steam circuit ©Endress+Hauser

    Water steam circuit process


Condenser Hot well

The steam condenser’s main purpose is to condense the exhausted steam from the low pressure turbine and convert it into water so that it can be reused in the boiler as feedwater. The vacuum of this steam is key to generate more power but requires easy testing and maintenance as well as reliable level measurement at all times. How do you address vacuum issues and level gauge maintenance? Try our guided wave radar, an alternative to traditional dp level transmitters and displacer type level.

Level measurement in the main condenser (hotwell)

Steam drum and pre-heaters

If the level is too low, overheating of the water wall tubes may cause accidents, causing expensive repairs, downtime and injury to personnel. If the level is too high, boiler water carryover into the super-heater or turbine may lead to extensive maintenance costs, turbine or boiler outages, or decreased efficiency. Controlling the level requires sophisticated techniques, such as guided wave radar (GWR), as the level measurement must be accurate and transmitted to the control system.

Steam drum level measurement by Endress+Hauser


Having more than 60 years of application know-how in the field of water/ steam circuit, we help our customers optimize their life-cycle costs and reduce the planning and procurement time. Our aim is to provide engineering solutions that are more simple, safe and accurate, and that bring consistent benefits to your plant process.


corresponds to the cost reduction reached when a high-quality guided wave radar (GWR) level measurement in vessel bypass chambers is purchased


shop for a complete assembly


is the number of installed Levelflex bypass solutions worldwide

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