FLESCH ENGINEERING’s field of activity also includes calculating system characteristics so that the pipe cross-sections can be selected correctly and the Ce value and the NPSH value are ultimately correct. Unfortunately, in the absence of such reliable calculations, too large pipe cross-sections are still often selected in practice due to uncertainty, or the back-pressure valves are designed too large. In the worst case, this can lead to the phenomenon of the so-called “hydraulic hammer” and ultimately to major damage or simply cause additional costs because a smaller pipe cross-section would have been sufficient. FLESCH ENGINEERING will be happy to advise you on suitable fittings such as safety and back-pressure valves, design pulsation dampers for you and provide you with the necessary information on the respective manufacturers.