They are offered primarily as a self-priming pump in a portable version on a trolley or a frame with internal combustion engines or electric. For large capacity are proposed on the frame or trailer adapted for traveling on public roads. Depending on the type of pump can by used for pumping clean water and polluted. These pumps are widely used for the dewatering of flooded excavations, basements or confined spaces. Use them for technical rescue services and fire brigades in shares fire and flood. Are also useful in the construction and municipal economy.