[Asia Fluid Network News] Steam jet vacuum pump is mainly reflected in two aspects: the degree of vacuum and exhaust volume. Under normal circumstances, the steam ejector vacuum pump suction volume is inversely proportional to the degree of vacuum, that is, the amount of suction increases, the vacuum decreases, reducing the amount of suction, vacuum increased. Curve changes slowly in the work section, when the exhaust exceeds the overload point, the curve suddenly rises, when the exhaust volume increases to a certain value, the vacuum will be completely destroyed. Therefore, the steam jet vacuum pump requires the use of the working section. To this end, in the selection must be the first process, technical parameters of the demonstration and checking, and then based on the data obtained to determine the steam jet vacuum pump specifications and models. Steam jet vacuum pump Following the main introduction to the selection of steam jet vacuum pump need attention: 1, the nature of the material; 2, the design of the vacuum determined; 3, the medium temperature; 4, the flow of media; 5, the stability of the operation; current industry The world's main use of the vacuum pump: steam jet and water ring vacuum pump, mechanical vacuum pump these three are more commonly used, from an environmental point of view, mechanical vacuum pump more environmentally friendly, zero emissions, but the air tightness of the former two, steam jet pump Low energy efficiency, high energy consumption, high pollution, noise, but more appropriate for the device with excess steam; water ring vacuum pump is good, operating stability is relatively good, but the discharge of sewage; according to the corrosive requirements , You can choose other materials such as stainless steel or ceramic pump pump; according to the gas flow rate can choose different pumps. All in all, the selection of a steam jet vacuum pump is equally important to the producer and the user. Related articles: Molecular vacuum pump selection Roots vacuum pump selection