Test device, for producing predetermined volumetric flow has feed pump, heating element, cooling element, valve and reference flow measuring device which are arranged one after the other in flow circuit of piping system

摘要

The test device for producing a predetermined volumetric flow with a closed piping system with a measuring tract has at least one feed pump (5), a heating element, a cooling element, a valve and a reference flow measuring device which are arranged one after the other in the flow circuit of the piping system, and all of which have at least approximately the same flow cross section as the piping system. At least one auxiliary fluid reservoir, which is charged with compressed air, is connected to the piping system.