Water Purification – viessmann

Water purification system (photo: © Roeder-Moldenhauer)

Topics at a glance

Product range
Water purification modules
Maintaining the value of a steam system

Unlike hot water boilers, steam boilers are constantly supplied with chemically and thermally treated feedwater. To prevent water components such as calcium, magnesium, oxygen, and carbon dioxide from damaging the steam boiler over time through pitting or scale deposits, it must be supplied with “correct” water, from which these substances have been removed.

Range of steam boiler products

Vitoplex LS

Big cauldron

Performance range: 0.26 - 2.2 t/h
Clean combustion
High efficiency over 91.5%
High quality steam

Vitomax HS

Big cauldron

Performance range: 0.5 - 31.5 t/h
High efficiency over 95.5%
H2 readiness 100%
Wide range of fuel options

Vitomax RS

Big cauldron

Use of process and waste heat
Reducing operating costs
Flexible applications
H2 readiness 100%

Water treatment modules

Viessmann offers a variety of water treatment modules for its steam boilers, depending on specific requirements and the freshwater quality and condensate volume at the system location. The modules provide water softening, chemical dosing, and thermal deaeration. Depending on the water quality and process, either double-dipole softening systems, integrated desalination systems, or reverse osmosis systems are used.

Reverse osmosis system

Double pendulum softening system

Maintaining the value of a steam system

Overall, water treatment reduces corrosion and deposits in steam boiler systems, ensuring their proper operation. It ensures longer service life by reducing stress on components and helps preserve the system’s value. Fully automated control ensures the boiler system operates as required over any specified period. This improves steam quality and extends the boiler’s lifespan. As a bonus, operators will notice a significant reduction in operating costs.

Reducing boiler water losses due to TDS and blowdown also means fewer refills of treated and heated feedwater. Last but not least, chemical use can be reduced. As a result, less energy is consumed to meet the system’s own needs, and maintenance and repair costs are reduced.