Опубликовано в "Бизнес, Бизнес", язык - English. 6 страниц.
Three-Screw Pump which is also called Triple Screw Pumps are positive displacement pumps that have a centrally-located primary screw intermeshing with two secondary screws on each side, with the central screw driving the two outer idler rotors. Constant volume of the chambers and the uniformity of the movement allow an even flow. Еще
