The ERHARD ball valve offers the ideal solution for a wide range of applications in the water and wastewater sector, especially for high flow velocities of up to 20 m/s and pressure ratings of up to PN160. Thanks to the double-eccentric design using ball plugs, the ERHARD ball valve has a negligible resistance coefficient in the open position compared to other valve types. The resistance coefficient of the valve has a significant influence on the energy consumption of pumps in closed piping systems. A direct comparison between a butterfly valve and an ERHARD ball valve clearly shows that the higher acquisition costs usually pay for themselves within the first few years of use. We will be happy to calculate the specific energy savings for your application.