本型泵系双级油封机械变容真空泵，它具有向大气直接排气的特点，适用于电子、制冷、电光源、化工、医疗、瓶胆、包装、脱水、干燥等行业。（但不能用于抽除含氧过高的、有爆炸性的、对金属有腐蚀性的、对真空油起化学反应的以及含有颗粒，尘埃的气体，也不能作为输送泵及压缩泵使用）。
This type of pump is two-stage oil-sealed mechanical displacement pump, which has a direct exhaust gas to the atmosphere, suitable for electronics, refrigeration, electric light, chemical, medical, bottle lamps, packaging, dehydration, drying and other industries. (But not for the high oxygen extraction, explosive, corrosive to metal, the vacuum oil from the chemical reaction and containing particles, dust, gas, and not as a pump and compressor pumps).
