Umwälzpumpe

Umwälzpumpe is a German term that translates to "circulation pump" or "circulator pump" in English. It refers to a type of pump used to move fluid in a closed-loop system, typically for heating or cooling purposes. These pumps are not designed to generate high pressure, but rather to maintain a continuous flow of a liquid, such as water or a water-glycol mixture, through pipes.

The primary function of an Umwälzpumpe in a heating system is to circulate the heated water from the boiler or heat source to radiators or underfloor heating elements and then back to the heat source. This ensures that heat is distributed evenly throughout the building. In cooling systems, they serve a similar purpose, circulating chilled water to air conditioning units.

Umwälzpumpen are commonly found in residential central heating systems, as well as in larger commercial and industrial applications. Modern Umwälzpumpen are often electronically controlled and feature variable speed settings to optimize energy consumption. They are generally compact, relatively quiet, and designed for continuous operation. The efficiency and reliability of an Umwälzpumpe are crucial for the proper functioning and energy performance of the entire system it serves.